Answer:
The correct answer is m∠2 = 120°
Stepbystep explanation:
There is a triangle rule that states the outer angle of an angle in a triangle is equal to the sum of the remaining two angles in that triangle, which means that m∠2 = 52° + 68° = 120°. This can be proven correct because the sum of two of the angles in the triangle is 120°, which means the final angle is 60°. Since m∠2 is the outer angle of 60°, that means it will be 180°  60° or 120°.
Answer:
m<2+= 60
Stepbystep explanation:
It's for my calculus class, I'm terrible in his class, please help.
The value of the integral [tex]\int\limits^2_0 {f(x)} \, dx[/tex] is 5. The value of the integral [tex]\int\limits^5_2 {f(x)} \, dx[/tex] is 0. The value of the integral [tex]\int\limits^8_0 {f(x)} \, dx[/tex] is 25.
What is definite integral mean?The definite integral of a function over a limit represents the area under the curve bounded by the limit as given in integration.
The integral represents the area under the curve.
(a) [tex]\int\limits^2_0 {f(x)} \, dx[/tex] = area of the triangle with base 2 and height 5.
Area = (1/2)2 x 5 = 5 units square
(b) [tex]\int\limits^5_2 {f(x)} \, dx[/tex] = area under the triangle with base 1 and height 5  area above the triangle with base 1 and height 5 = 0
(c) [tex]\int\limits^8_0 {f(x)} \, dx=\int\limits^2_0 {f(x)} \, dx+\int\limits^4_2 {f(x)} \, dx+\int\limits^8_4 {f(x)} \, dx[/tex]
⇒ 5 + 0 + 4 x 5 = 25 units sqaure.
Hence "integral [tex]\int\limits^2_0 {f(x)} \, dx[/tex] is 5. Integral [tex]\int\limits^5_2 {f(x)} \, dx[/tex] is 0. The value of the integral [tex]\int\limits^8_0 {f(x)} \, dx[/tex] is 25".
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Classify the four angles of the quadrilateral.
Answer:
angle A is obtuse
angle B is acute
angle C obtuse
angle D is right
Answer:
Stepbystep explanation:
A is Obtuse Angle
B is Acute Angle
C is Obtuse Angle
D is Right Angle
A circular kiddie pool has an area of about 28 square feet. An inflatable fullsize circular pool has an area of about 113 square feet. How much greater
The radius of the fullsized pool is 2 times larger than the radius of the kiddie pool.
By using the expression to approximate the radius of a circle, we want to compare the radius of the two pools.
The expression for the radius of a circle is:
R = √(A/3)
Where A is the area of said circle.
The circular kiddie swimming pool has an area of 28ft^2, we just replace that in the above expression to get:
R = √(28 ft^2/3) = 3 ft
The fullsized pool has an area of 113 ft^2, then its radius is:
R' = √(113 ft^2/3) = 6 ft
To see how much greater is the radius of the fullsized pool than the radius of the kiddie pool, we just take the quotient:
R'/R = 6ft/3ft
= 2
Hence, the radius of the fullsized pool is 2 times larger than the radius of the kiddie pool.
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Inside a cooling tower, the temperature fell 5each hour for a total change of 35Find the number of hours it took for the change in temperature
Answer:
7 hours
Stepbystep explanation35/5=7
I will give BRAINLIEST if correct the question is in the photo attached please answer Part A
Answer:
02 sec
Stepbystep explanation:
From the graph you can see the height is going UP from 02 sec...from then on it is going downward....
Can somebody help me with this pls pls need it asap
Don’t just give me the answer add the steps to it too pls and ThankYou
1/6 because $160 as a fraction is 1/6
what is the ratio in the series 4, 6, 9...
The ratio in the series is 1.5.
Stepbystep explanation:The ratio consists on making the division of a value from a series, divided by its previous value. In this case you have 2 options for finding the ratio, and you will get the same answer:
6/4= 1.5
9/6= 1.5
Hence, the ratio in the series is 1.5.
let be a random variable with the following probability distribution. value of 1 0.10 2 0.75 3 0.05 4 0.05 5 0.05 complete the following. (a) find the expectation of . (b) find the variance var of
On solving the provided question we can say that  probability distribution, E(X)= 47.5, V(X)= 128.75, [tex]E(X^{2})[/tex] = 2605
What is probability distribution?A probability distribution is a mathematical function used in probability theory and statistics that estimates the likelihood that different possible experiment results will occur. The sample space and event probabilities are used to build a mathematical description of random occurrences.
E(X)= (20 * 0.05) + (30 *0.05)+ (40 * 0.35) + (50 * 0.20) + (60 *0.35)
= 1+ 1.5 + 14 + 10 + 21
= 47.5
V(X)= ((2038)2 * 0.05) + ((3038)2 *0.05)+ ((4038)2 * 0.35) + (5038)2 * 0.20) + ((6038)2 *0.35)
= 16.2 + 3.2 + 1.4 + 28.8 +169.4
= 128.75
[tex]E(X^{2})[/tex]=
=(202 * 0.05) + (302 *0.05)+ (402 * 0.35) + (502 * 0.20) + (602 *0.35)
= 20 + 45 + 560 + 500 +1260
=2605
[tex]V(X^2)[/tex] = 2605  ( 47.5)2
= 2385  2256.25
=128.75
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Use the Law of Sines to solve the triangle. Round your answers to two decimal places. (Let B = 8° and c = 43.)
A =
a =
b=
A
O
b
C
135°
C
B
The Law of Sines states that in any triangle, the ratio of the length of a side to the sine of the angle opposite that side is the same for all sides and angles. In other words, if a, b, and c are the lengths of the sides of a triangle, and A, B, and C are the angles opposite those sides, then we have:
a/sin(A) = b/sin(B) = c/sin(C)
In the given triangle, we are given the values of B and c, so we can use the Law of Sines to find the other side lengths and angles. We have:
a/sin(A) = c/sin(C)
Since c = 43 and C = 135°, we can plug these values into the equation to find a:
a/sin(A) = 43/sin(135°)
To find the value of a, we just need to solve for a by multiplying both sides of the equation by sin(A). We have:
a = 43 * sin(A) / sin(135°)
We know the value of B, so we can use the Law of Sines again to find the value of A:
sin(A) / a = sin(B) / b
Since B = 8° and b is unknown, we can plug these values into the equation to find a:
sin(A) / a = sin(8°) / b
To find the value of A, we just need to solve for A by dividing both sides of the equation by sin(A)/a. We have:
A = asin(8°) / b
Now that we know the values of A and c, we can use the Law of Sines one more time to find the value of b:
sin(A) / a = sin(B) / b
Since A and a are unknown, we can plug the known values into the equation to find b:
sin(A) / a = sin(B) / b
To find the value of b, we just need to solve for b by multiplying both sides of the equation by sin(B)/b. We have:
b = sin(B) / (sin(A) / a)
At this point, we have all the necessary values to compute the values of a, A, and b. We can plug the known values into the equations we derived above to find the unknown values.
First, let's find the value of a:
a = 43 * sin(A) / sin(135°)
We know the values of A and B, so we can plug these values into the equation to find a:
a = 43 * sin(A) / sin(135°)
= 43 * sin(180°  C  B) / sin(135°)
= 43 * sin(180°  135°  8°) / sin(135°)
= 43 * sin(37°) / sin(135°)
To compute the value of sin(37°), we can use a calculator or look up the value in a table of sines.
Charles needs to determine whether x+2 is a factor of f(x)=2x^4 3x^3 +5x 16 .
How can Charles use the factor theorem to determine whether x+2 is a factor of f(x)?
Fill in the blanks using the word bank below:
f(2) f(2) f(4) 30 2 320 is is not
Charles evaluates ________________ and determines its value to be______________Charles concludes that ______________ factor of .
Charles evaluates f(2) and determines its value to be 30 Charles concludes that is not factor of f(x).
What is Factor theorem?
The factor theorem in algebra establishes a connection between a polynomial's factors and zeros. The polynomial remainder theorem has this particular special instance. A polynomial f(x) has a factor if and only if f=0, according to the factor theorem.
Given : f(x)=2x^4 3x^3 +5x 16
By Factor theorem, If x+2 is a factor of f(x), then f(2) should be equal to 0.
So, Charles can use factor theorem to determine whether x + 2 is a factor of f(x) by putting x=2 in f(x),
f(x) = 2x^4 3x^3 +5x 16
= 2×(2)^4  3×(2)^3 + 5(2)  16
= 2×16 + 3×8  10  16
= 32 + 24 10 16
= 56 26
= 30.
Since, f(2) ≠ 0, (x +2) is not a factor of f(x).
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What’s the difference between solving a whole number and a fraction?
There’s these two methods I saw but not sure when I should use them when I do stumble on a problem.
1 method: start by multiply the numerator towards the whole number and once u do then divide the numerator and denominator separately.
2 method: start by giving the whole number a 1 of the denominator and find the lCD of the fraction and start finishing the problem from either adding or subtracting.
Both the methods can be used to solve a mixed fraction including a whole number and a fraction or solving the difference of a whole number and a fraction.
What is Mixed Fraction?Mixed fractions are type of fractions which involve a whole number and a fraction. This is of the form a [tex]\frac{b}{c}[/tex]. This is actually a + [tex]\frac{b}{c}[/tex].
You can use either methods when solving a whole number and a fraction.
Let us take a whole number 3 and a fraction [tex]\frac{2}{10}[/tex] for instance.
First Method :
Solve it by cross multiplication.
Let the denominator of the whole number 3 be 1.
[tex]\frac{3}{1}[/tex] ± [tex]\frac{2}{10}[/tex] = [(3 × 10) ± (2 × 1)] / (1 × 10) = [30 ± 2] / 10
If the question is for adding, we get, [tex]\frac{3}{1}[/tex] + [tex]\frac{2}{10}[/tex] = (30 + 2) / 10 = 32/10
If the question is finding difference, we get, [tex]\frac{3}{1}[/tex]  [tex]\frac{2}{10}[/tex] = (30  2) / 10 = 28/10
Second Method :
Again let the denominator of the whole number be 1.
Find the LCD (Least Common Denominator) of 1 and 10.
This is 10.
So we have to make the denominator of [tex]\frac{3}{1}[/tex] to 10.
Multiply both numerator and denominator with 10, we get 30/10.
A normal multiplication of fractions, if the denominator is same add or subtract the numerators let the denominator be as such.
Now add or subtract [tex]\frac{30}{10}[/tex] ± [tex]\frac{2}{10}[/tex] = (30 ± 2) / 10.
Hence both the methods can be used.
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You are part of the rescue team in a ship at sea. One of your divers is 250 feet below sea level, and she injured herself. She has only a 7 minute supply of air in her tank, and can only rise towards the surface at a rate of 10 feet per minute. You are sending down a rescue sub. The sub can descend at a rate of 30 feet per minute. At what depth, to the nearest foot, will the two meet?
Answer:
To determine at what depth the rescue sub will meet the injured diver, we need to first calculate how long it will take the diver to reach the surface. Because the diver is rising at a rate of 10 feet per minute, and she has a 7 minute supply of air, it will take her 7 minutes to reach the surface.
Next, we need to calculate how long it will take the rescue sub to reach the diver. Because the diver is 250 feet below the surface, and the sub is descending at a rate of 30 feet per minute, it will take the sub 250 feet / 30 feet/minute = <<250/30=8.33>>8.33 minutes to reach the diver.
Finally, to determine at what depth the two will meet, we need to subtract the time it takes the diver to reach the surface (7 minutes) from the time it takes the sub to reach the diver (8.33 minutes). This gives us a total time of 8.33 minutes  7 minutes = 1.33 minutes.
Since the diver is rising at a rate of 10 feet per minute, and the total time is 1.33 minutes, the depth at which the two will meet is 1.33 minutes * 10 feet/minute = 13.3 feet. Rounding to the nearest foot, we get a depth of 13 feet. Therefore, the rescue sub and the diver will meet at a depth of approximately 13 feet.
tucker is making cookies the recipe called for 1/3/4 cups of flour and 1/2cup of sugar how much flour and sugar coral will be use to make the cookies
The flour and sugar coral that will be use to make the cookies is 2 1/4 cups.
How to calculate the fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.
In this situation, Tucker is making cookies the recipe called for 1/3/4 cups of flour and 1/2cup of sugar.
The flour and sugar coral that will be use to make the cookies will be:
= 1 3/4 + 1/2
= 2 1/4
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Margo solves several equations and then states that all of them have a solution of x = 7. However, Kenneth disagrees. Determine which of the following equations have a solution of x = 7 and then justify your response.
A. 6x + 11 = 55
B. 3x 18 = 39
C. 2x  14 =  28
D. 7x + 9 = 58
SHOW YOUR WORK!!!
a. [tex]6x+11=55[/tex]
Subtract 11 from both sides:
[tex]6x+1111=5511[/tex]
[tex]6x=44[/tex]
Divide both sides by 6:
[tex]\dfrac{6x}{6} =\dfrac{44}{6}[/tex]
[tex]x=7.333333[/tex]
___________________________
b. [tex]3x18=39[/tex]
Add 18 to both sides:
[tex]3x18+18=39+18[/tex]
[tex]3x=57[/tex]
Divide both sides by 3:
[tex]\dfrac{3x}{3} =\dfrac{57}{3}[/tex]
[tex]x=19[/tex]
___________________________
c. [tex]2x14=28[/tex]
Add 14 to both sides:
[tex]2x14+14=28+14[/tex]
[tex]2x=14[/tex]
Divide both sides by 2:
[tex]\dfrac{2x}{2} =\dfrac{14}{2}[/tex]
[tex]x=7[/tex]
___________________________
d. [tex]7x+9=58[/tex]
Subtract 9 from both sides:
[tex]7x+99=589[/tex]
[tex]7x=49[/tex]
Divide both sides by 7:
[tex]\dfrac{7x}{7} =\dfrac{49}{7}[/tex]
[tex]x=7[/tex]
___________________________
Only option d had a solution of x = 7.
Which equations represent circles that have a diameter of 12 units and a center that lies on the yaxis? Select two options.
x2 + (y – 3)2 = 36
x2 + (y – 5)2 = 6
(x – 4)² + y² = 36
(x + 6)² + y² = 144
x2 + (y + 8)2 = 36
The equations represent circles that have a diameter of 12 units and a center that lies on the yaxis is x2 + (y – 3)2 = 36,x2 + (y – 3)2 = 36
How to Find diameter of the circle?
The standard form for finding the equation of a circle is expressed as;
(xa)^2 + (yb)^2 = b=r^2
where;
(a, b) is the center of the circle
r is the radius of the circle
Given the following:
diameter = 12 units
radius = 12/2 = 6 units
By substituting the values we these two equations.
A line dividing a circle into even halves is the definition of the diameter of a circle. This line begins at one location on the circle, travels through the middle, and then terminates on the other side. The diameter is the circle's longest chord, according to definition (or line segment that can be formed using two points along it). The distance to the other side is greatest for the line formed by these endpoints since it travels through the centre.There are an endless number of points on one half of a circle, and each of these points has a corresponding one on the opposite side, hence this circle can have an infinite number of diameters.To learn more about Diameter of the circle refer to:
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Which is the largest ratio?
StartFraction 5 Over 36 EndFraction, 2:9, 3 to 18, 1:3
StartFraction 5 Over 36 EndFraction
2:9
3 to 18
1:3
Comparing the ratios in form of fraction, the ratio 1:3 is the largest.
RatiosThe ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity. We use the ratio formula while comparing the relationship between two numbers or quantities. The general form of representing a ratio of between two quantities say 'a' and 'b' is a: b, which is read as 'a is to b'.
In the ratios given, we have 2:9, 3:18 and 1:3
Let's write these in form of fraction to the decimal and determine which is the largest.
i)
2:9 = 2/9 = 0.22
ii)
3:18 = 3/18 = 0.1666 ≅ 0.17
iii)
1:3 = 1/3 = 0.33
From the above fractions, the ratio 1:3 is the largest.
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Graph AABC with vertices A(0, 2), B(3, 2), and C(2, 1) and its image after a reflection in the xaxis.
To graph the triangle AABC, we can plot the coordinates of the three vertices and then connect them to form the triangle. The coordinates of the vertices are (0, 2), (3, 2), and (2, 1), so we can plot these points on a coordinate grid and connect them with line segments to form the triangle:


 (2,1)
 /
 /
 /
/
(0,2) __________ (3,2)
To reflect the triangle in the xaxis, we can multiply the ycoordinate of each vertex by 1. This will cause the triangle to be flipped over the xaxis. The coordinates of the reflected triangle are (0, 2), (3, 2), and (2, 1), so we can plot these points on the same coordinate grid and connect them with line segments to form the reflected triangle:



 /\
 / \
 / \
/ \
(0,2) __________ (3,2)


 (2,1)

The resulting graph shows the original triangle AABC and its image after reflection in the xaxis.
Answer:
A' = (0, 2)
B' = (3, 2)
C' = (2, 1)
Stepbystep explanation:
Given vertices of triangle ABC:
A = (0, 2)B = (3, 2)C = (2, 1)The mapping rule for a reflection in the xaxis is:
(x, y) → (x, y)Therefore, the vertices of ΔA'B'C' are:
A' = (0, 2)B' = (3, 2)C' = (2, 1)The first digit after the decimal point in a number is 5. What is the value of 5 in the number?
Answer:
1/2
Stepbystep explanation:
Let's say the number is 1.5
1.5 = 1 + 0.5
(1.5 = 1 + 0.5)*10 ==> multiply by 10 to remove decimals
15 = 10 + 5
5 is half of 10
Hence, 0.5 is half of 1 ==> 0.5 = 1/2
what is 5,000,374 * 2,000
The following graph shows a system of linear inequalities. Select the correct system:
The linear inequalities that represent the graph are y ≤ (1/2)x  1 and y > 2x  4. Then the correct option is C
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
x/a + y/b = 1
Where 'a' is the xintercept of the line and ‘b’ is the yintercept of the line.
The intercepts are 2 and 1. Then the equation of the line is given as,
x / 2 + y / (1) ≤ 1
y ≤ (1/2)x  1
The intercepts are 2 and 4. Then the equation of the line is given as,
x / 2 + y / (4) > 1
y > 2x  4
The straight disparities that address the diagram are y ≤ (1/2)x  1 and y > 2x  4. Then, at that point, the right choice is C
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My son James weighed 11 lbs 9 oz when he was born. convert both the
pounds and ounces separately into kilograms and add them together
One lb = one pound.
and 11 lb is 11 pound
Is 8 oz the same as 1 lb?
Each pound has 16 ounces or oz.
5,44311
What do you mean by pounds?
a unit for measuring weight: One pound is approximately equal to 454 grams. One kilogram is roughly the same as 2.2 lbs. There are 16 ounces in one pound.
What is a pound and examples?
Image result for What do you mean by pounds?
In simpler words, pounds tell us how heavy an object is. For example, the weight of a soccer ball is about one pound. A pound is expressed as lb or lbs, where “lb” stands for libra. It is a Latin word that means “balance” or “scale”.
Its name derives from the Latin word "poundus" meaning "weight". The £ symbol comes from an ornate L in Libra. The pound was a unit of currency as early as 775AD in AngloSaxon England, equivalent to 1 pound weight of silver.
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In college, we study large volumes of information  information that, unfortunately, we do not often retain for very long. The functionf(x)=80e^{0.5x}+20describes the percentage of information, f(x), that a particular person remembers x weeks after learning the information. Find the percentage of information that is remembered after one year (52 weeks).
The percentage of information that is remembered by a particular person after one year (52 weeks) is 20%
The function f(x)=80e0.5x+20 describes the percentage of information that a particular person remembers after x weeks.
To find the percentage of information that is remembered by a particular person after one year (52 weeks), we need to substitute x=52 in the given f(x).
f(x)=80[tex]e^{0.5x}[/tex]+20
x=52, f(52)= 80[tex]e^{(o.5\times 52)}[/tex]+20
=80[tex]e^{26}[/tex]+20
=80(5.109 [tex]E^{12[/tex])+20
= 4.087[tex]E^{20}[/tex]+20
f(52)= 20
The percentage of information that is remembered by a particular person after one year (52 weeks) is 20%
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Question #2
0 of 3 points
Cynthia has a watch that counts the number of steps she takes every
day. When she goes for a casual walk, she can get 50 steps every
minute. She has already walked for 236 steps today and she wants to
get to 950 steps before she goes to school.
Which inequality represents the number of minutes (m) Cynthia would
need to walk to reach her goal before she gets to school?
X
0/3
The inequality that represents the number of minutes Cynthia would need to walk to reach her goal before she gets to school is;
50m + 236 ≥ 950
How to solve inequality word problems?We are told that;
Cynthia has a watch that counts the number of steps she takes every
day.
She can get 50 steps every minute for a casual walk.
Number of steps she has walked today = 236 steps
Number of steps she wants to get to before going to school = 950 steps
Now, if m represents the number of minutes Cynthia would need to walk to reach her goal before she gets to school, then the inequality equation her is;
50m + 236 ≥ 950
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How much do you have to invest today at 2% compounded monthly to obtain $1,000 in return in 4 years?
Answer:6 dollars
Stepbystep explanation:
Cuz u going to need to buy 3 mc flurries :D
A survey of 25 randomly sampled judges employed by the state of Florida found that they earned an average wage (including benefits) of $65.00 per hour. The sample standard deviation was $6.25 per hour.
The 99% confidence interval for the mean wage of all judges is given as follows:
($61.5, $68.5).
How to obtain the confidence interval?We have the standard deviation only for the sample, hence the tdistribution is used to obtain the confidence interval.
The equation that defines the bounds of the confidence interval is given as follows:
[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]
In which the variables of the equation are presented as follows:
[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.The critical value, using a tdistribution calculator, for a twotailed 99% confidence interval, with 25  1 = 24 df, is t = 2.797
The remaining parameters are given as follows:
[tex]\overline{x} = 65, s = 6.25, n = 25[/tex]
Hence the lower bound of the interval is calculated as follows:
65  2.797 x 6.25/5 = $61.5.
The upper bound of the interval is of:
65  2.797 x 6.25/5 = $68.5.
Missing InformationThe problem asks for the 99% confidence interval for the mean wage of all judges.
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Write the fraction 18/48 in simplest form.
Answer:
3/8
Stepbystep explanation:
Simplify the following:
18/48
The gcd of 18 and 48 is 6, so 18/48 = (6×3)/(6×8) = 6/6×3/8 = 3/8:
Answer: 3/8
Find the slope of each of the following functions at the given points. f(x)=x²; (3,9)
Answer:
the eqn given by the function is y=9(1)
given point is(3,9)=(X,y)
we know,
y=mx
mx=9 [from 1]
or,m(3)=9 [from point]
or,m=9/3
:.m=3
hence, slope=3
the pvalue for the hypothesis test about factor b is . multiple choice less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 greater than 0.05
The pvalue for the hypothesis test about factor b is greater than 0.05.
What is Hypothesis?
In effect, a theory is a hypothesis or group of hypotheses that refers to a particular issue or problem.
Thus, a hypothesis is a set of possible explanations or resolutions applicable to a situation. In other words, the hypotheses pose different scenarios in which the aim is to explain the origin and eventual resolution of the problem.
The pvalue for the hypothesis test about factor b is greater than 0.05.
The pvalue is a measure of statistical significance used in hypothesis testing. It represents the probability of obtaining a result at least as extreme as the one observed in the sample, given that the null hypothesis is true.
In general, a pvalue less than 0.05 is considered statistically significant and indicates that the observed result is unlikely to have occurred by chance. A pvalue between 0.01 and 0.025 is considered moderately significant, while a pvalue between 0.025 and 0.05 is considered borderline significant. A pvalue greater than 0.05 is not considered statistically significant and indicates that the observed result is likely due to chance.
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Describe hypothesis.
A theory is, in essence, a hypothesis or set of hypotheses pertaining to a certain subject or issue(s).
Consequently, a hypothesis is a group of potential explanations or solutions that could be applied to a situation. In other words, the hypotheses present many possibilities with the intent of illuminating the problem's origin and potential solutions.
The pvalue for the factor b hypothesis test is higher than 0.05.
A statistical significance indicator used in hypothesis testing is the pvalue. Given that the null hypothesis is true, it represents the likelihood of obtaining a result that is at least as extreme as the one seen in the sample.
A pvalue of less than 0.05 is typically regarded as statistically significant and denotes the likelihood that the observed result did not arise by chance. While a pvalue between 0.025 and 0.05 is regarded as borderline significant, one between 0.01 and 0.025 is regarded as moderately significant. The observed result is most likely the result of chance if the pvalue is greater than 0.05, which is the threshold for statistical significance.
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Write an equation to solve. Be sure to identify your variable.
Mrs. Kenney's class is
holding a canned food drive for Thanksgiving. Tara collected 10 more cans than Phil.
Laurie collected twice as many cans as Tara, If they collected 130 cans altogether, how
many cans did Tara collect?
The number of cans Tara collected is 35.
How to represent and solve equation?Mrs. Kenney's class is holding a canned food drive for Thanksgiving. Tara collected 10 more cans than Phil. Laurie collected twice as many cans as Tara. They collected 130 cans altogether.
Therefore, let's find the number of cans Tara collected.
Hence, using equation,
let
x = number of cans Phil collected
Number of cans Tara collected = x + 10
Number of cans Laurie collected = 2(x + 10) = 2x + 20
Therefore,
x + x + 10 + 2x + 20 = 130
4x + 30 = 130
4x = 130  30
4x = 100
x = 100 / 4
x = 25
Hence, Tara collected 25 + 10 = 35 cans.
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Q23: Problemsolving
Work out the area of this triangle.
The area of the triangle is 11.1 square cm
How to determine the area of the triangle?From the question, we have the following parameters that can be used in our computation:
Legs = 3cm and h cm
Hypotenuse = 8 cm
The area of the triangle is calculated using
Area = 0.5 * b * h
Where
h = √(8²  3²)  this is gotten from the Pythagorean theorem
So, we have
h = 7.4
The area is then calculated as
Area = 0.5 * b * h
So, we have
Area = 0.5 * 3 * 7.4
Evaluate
Area = 11.1
Hence, the area is 11.1 square cm
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