The computed value of the test **statistic** is 4.65 or 4.7

Information given in the query:

significance level = 0.05

**Sample size** is 41 observations, and the **correlation** value is 0.60.

Now,

Using the formula, the test statistic to determine whether the population correlation is zero is provided.

:

t =[tex]r\sqrt{n-2} /\sqrt{1-r^{2} }[/tex]

on substituting the respective values, we get

test statics , t = 4.65

or

t=4.7

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72=6x

What is x equal to?

**Answer:**

12

**Step-by-step explanation:**

72:6=12

1x=12

hope ut help

X is equal to 12 because when you divide 72 by 6 it will give you 12 and therefore x is equal to 12.

[tex]please \: help \: me \: i \: keep \: getting \: the \: wrong \: am \\ answer[/tex]

2. The populations of five cities in California are listed below. What is the combined population of San Diego and Fresno?

City | Population

______________________

Los Angeles | 3,928,864

______________________

San Diego. | 1,381,069

______________________

San Jose | 1,015,785

______________________

San Francisco| 852,469

______________________

Fresno | 515,986

**Answer:**

1,897,055

**Step-by-step explanation:**

1,381,069+515,986=1,897,055

Help pleaseeeeee (ignore the part that says explain math mistake)

Check the picture below.

Question 6(Multiple Choice Worth 2 points)

(Multiplying and Dividing with Scientific Notation MC)

How many times larger is 8 x 105 than 4 x 10³?

2,000

200

20

2.0

8 × [tex]10^5[/tex] is 200 times greater than 4 × [tex]10^3[/tex] as according to multiplying and dividing as per the** scientific notation** of multiplication and division.

A kind of representation of number which is some power of 1/10 can also be expressed in as easily in **scientific notation.**

1/10 = [tex]10^{-1[/tex] (“ten to the minus one power”)

More generally, the expression “[tex]10^{-n[/tex]” (where n is a **whole number**) means (1/10) n. Thus

[tex]10^{-3[/tex] = [tex]\frac{1}{10}^{-3}[/tex]

= 1/1000

[tex]10^{-8[/tex] = [tex]\frac{1}{10}^{-8[/tex]

= 1/100,000,000

Scientific notation was invented to help scientists (and science students) deal with very large and very small numbers, without getting lost in all the zeros.

Herein this question

8 × [tex]10^5[/tex] can also thus be written as 2 x 4 × [tex]10^5[/tex]. On dividing with 4 × [tex]10^3[/tex] we get 2 x [tex]10^2[/tex]. Thus, it is 2 x [tex]10^2[/tex] i.e., 200 times larger than 4× [tex]10^3[/tex].

The expression “10n”, where n can be stated as a whole number, simply means that “10 is raised to the nth power,” or in other words, a number that is got by using 10 as a factor n times.

You can also notice that the number of zeros that are present in the ordinary **decimal expression** is absolutely equal to the power to which thus 10 is raised.

If any kind of number is expressed in words, first we have to write it down as an ordinary decimal number and then we have to convert it. Thus, the value “ten million” becomes 10,000,000. There are a total of seven zeros, so in powers of ten notation ten million is written [tex]10^7[/tex].

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What is an equation of a line, in point-slope form, that passes through (1, - 7) and has a slope of -2/3?

**Answer:**

A

**Step-by-step explanation:**

help me with math, its 8th grade 100 points look at attachment

**Answer:**

1)

The hypotenuse is the longest side of a triangle. It is ALWAYS the one across from the right angle (depicted as the box in the corner at 90 degrees). Therefore the 2 sides that intersect the 90-degree angle are "leg" and "leg" and the longest side is the"hypotenuse"

2)

The Pythagorean theorem states: [tex]a^{2} + b^{2} = c^{2}[/tex] where a and b are sides and c is the hypotenuse.

[tex]a^{2} + b^{2} = c^{2} \\8^{2} + 6^{2} = c^{2} \\64 + 36 = c^{2} \\100 = c^{2} \\\sqrt{100} = c\\10 = c[/tex]

For your purposes, a and b do not matter which number you choose as long as you make sure that they are sides and not the hypotenuse.

3)

The Pythagorean theorem states: [tex]a^{2} + b^{2} = c^{2}[/tex] where a and b are sides and c is the hypotenuse.

[tex]a^{2} + b^{2} = c^{2} \\4^{2} + 7^{2} = c^{2} \\16 + 49= c^{2} \\65 = c^{2} \\\sqrt{65} = c\\8.0622 = c[/tex]

Hope that helps!

Question 8 (1 point)

Identify the slope as POSITIVE, NEGATIVE, ZERO, OR UNDEFINED.

**Answer:**

**Step-by-step explanation:**

i think its undefined

Jose will spend at most $20 on gifts. So far, he has spent $12 . What are the possible additional amounts he will spend?

Answer:8 dollars

Step-by-step explanation:

20-12=

O LINEAR EQUATIONS

Finding the dimensions of a rectangle given its perimeter and a...

The length of a rectangle is three times its width.

If the perimeter of the rectangle is 64 yd, find its length and width.

length: yd

width: yd

X

**Answer:** width=8, length=24

**Step-by-step explanation:**

2(x+3x)=64

2x+6x=64

x=8

width (x)=8

length (3x)=24

perimeter=2(x+3x)=64

3x³+28=220 thanks for the help!

the answer to tuis problem is x=4.

Here is a linear equation: y = 2/3x + 1 Are (6, 5) and (9, 8) solutions to the equation? Explain or show your reasoning.

First. (6,5) substitution to equation

5=2/3(6)+1 , 5=4+1 , 5=5

Second. (9,8) substitution to equation

8=2/3(9)=1 , 8=6+1 , 8=7

Only (6,5) is solution

5=2/3(6)+1 , 5=4+1 , 5=5

Second. (9,8) substitution to equation

8=2/3(9)=1 , 8=6+1 , 8=7

Only (6,5) is solution

Tom walked a total of 15 kilometers by making 5 trips to school. Later on, he walked 33

kilometers during 11 trips. How many kilometers does Tom walk per trip?

15 divided by 5 = 3

33 divided by 11 = 3

tom walks 3 kilometers per trip

33 divided by 11 = 3

tom walks 3 kilometers per trip

Mr. Helmer had a wooden board 85 inches long. He cut off a piece 9 inches long. How long was the board after the cut?

**Answer: 76 Mr Helmer had 76 inches left. **

**Step-by-step explanation: All you do is you subtract 9 from 85. **

**Or 85-9=X **

Find WI if IE = 3

EW and YG are medians of XYW

Based on the definition of the **median** and applying the **centroid theorem**, the length of WI is calculated as: 6 units.

The line that joins the vertex of a triangle to the midpoint of the side it is directly opposite is called the **median** of a triangle.

**Medians** intersect each other at a point inside the triangle that is called the **centroid**. Based on the **centroid** **theorem**, since J is the **centroid** of triangle XYW, then:

the length of IE is one-third of the length of segment EW (referring to the image given in the question that shows triangle XYW)

Thus, we have the equation that relates the length of the segments as shown below:

IE = 1/3(EW)

Given that:

IE = 3 units

Substitute the value of IE into the equation:

3 = 1/3(EW)

3(3) = EW

9 = EW

EW = 9 units

Therefore:

Length of WI = the length of EW - the length of IE

Substitute

Length of WI = 9 - 3

Length of WI = 6 units.

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Betrys is making a vegetable stew for 8 people

**Answer:**

150 gram is the word

Drag each statement to show whether it is true, based on the graph.

The price per one pound of almonds equal** $2.20/0.65 lb**

0.65 pounds of almonds cost** $2.20**

Verify each case

case 1) The price per one pound of almonds equal $2.20/0.65 lb

The statement is true

To find the price per one pound calculate the unit rate

So,

$2.20/0.65 lb=$3.38 per one pound

case 2) 2.2 pounds of almonds cost $0.65

The statement is not True

The correct is 0.65 pounds of almonds cost $2.2

case 3) Each bag of almonds weighs 2.2 pounds

Cannot be determined

In the problem there is no information about how much each bag of almonds weighs

case 4) 0.65 pounds of almonds cost $2.20

The statement is True

The point (0.65,2.20) lie to the line of the the graph.

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the figure is a rectangular pyramid the base is rectangle abcd and the four faces abe bce cde and ade b=meet at the vertex e the edges are ab bc cd ad ae be ce and de the vertices are abce and e

**Answer:**

here you go I guess

**Step-by-step explanation:**

The graph of the function p(x)=x^3+x^2+4x+4 is shown below

Find all real and complex roots of the function. The Zeros are:

List the zeros as complex numbers. Separate answers by commas as needed.

**Answer:**

1 ; -2·i ; 2·i

Because x = -1 is a real root, you can divide

(x^3 + x^2 + 4·x + 4)/(x + 1) = x^2 + 4

Roots of x^2 + 4 are

x^2 + 4 = 0

x^2 = -4

x = ± 2·i

All real and complex roots are

1 ; -2·i ; 2·i

In the figure shown at right, the area of the large rectangle is (5x)(8x+1) and the area of the small rectangle is (4x)(2x) which of the following expression represents the area of the shaded region?

Given:

Area of large rectangle = (8x + 1)(5x)

Area of small rectangle = (4x)(2x)

To find area of the shaded region, subtract the area of the small rectangle from the large rectangle.

We have:

Area of large rectangle =

[tex]\begin{gathered} (8x+1)(5x) \\ \\ =8x(5x)+1(5x) \\ \\ =40x^2+5x \end{gathered}[/tex]Area of small rectangle =

[tex]\begin{gathered} (4x)(2x) \\ \\ =8x^2 \end{gathered}[/tex]Area of shaded region =

[tex]\begin{gathered} (40x^2+5x)-(8x^2) \\ \\ 40x^2+5x-8x^2 \\ \\ \text{Combine like terms:} \\ 40x^2-8x^2+5x \\ \\ =32x^2+5x \end{gathered}[/tex]Therefore, the area of the shaded region is = **32x² + 5x**

**ANSWER:**

Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of the angles formed is 72degrees, what are the measures of the other three angles? Explain your answer. (15 points and brainliest)

72, 108, and 108 are the other** three angles** formed by the two straight lengths of** wire**.

For the given question.

Two **straight lengths** of **wire** are put on the ground, to form vertical angles.

Because vertical angles have always been** congruent,** 72 is the vertical angle to 72.

Because the line is straight, the answer is 180.

180 - 73 equal 108. (supplement angles)

Because they are both vertical angles, there are two 180s.

Thus, the **three angles** formed are 72, 180 and 180 degrees.

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pls help asap Noor’s family is meeting her grandparents at a restaurant. The restaurant is 24.5 miles from Noor’s house. This is 65.5% of the distance from Noor’s house to her grandparents’ house. What is the distance between the two houses? Round your answer to the nearest tenth of a mile.

The **distance** between Noor's house and her grandparent's house is 37.40 miles or if rounded off to the nearest tenth, it will be 40 miles using the **estimation **concept.

As per the question statement, Noor’s family is meeting her grandparents at a restaurant and the restaurant is 24.5 miles from Noor’s house but this is 65.5% of the distance from Noor’s house to her grandparents’ house.

We are supposed to find the **distance** between Noor's house and her grandparent's house. We will use the concept of **estimation.**

**Distance** between Noor's house and restaurant = 24.5 miles

Let **distance** between Noor's house and her grandparent's house be "x" miles.

So the distance between grandparent's house and restaurant = x - 24.5

Now it is given that 24.5 miles is 65.5% of the distance from Noor’s house to her grandparents’ house.

So, 65.5% of x = 24.5

(65.5*x)/100 = 24.5

65.5*x = 2450

x = 2450 / 65.5

x = 37.40 miles

If rounded off to the nearest tenth mile, we get

x = 40 miles.

So, the distance between Noor's house and her grandparent's house is 37.40 miles or if rounded off to the nearest tenth, it will be 40 miles.

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Enter the values for the highlighted variables that show how to subtract the rational expressions correctly: StartFraction 2 Over x squared minus 36 EndFraction minus StartFraction 1 Over x squared + 6 x EndFraction = StartFraction 2 Over (x + 6) (x minus 6) EndFraction minus StartFraction 1 Over x (x + a) EndFraction. = StartFraction b x Over (x + 6) (x minus 6) x EndFraction minus StartFraction x minus c Over (x + 6) (x minus 6) x EndFraction. = StartFraction d x minus x + e Over (x + 6) (x minus 6) x EndFraction. = StartFraction x + f Over (x + 6) (x minus 6) x EndFraction. = StartFraction g Over x (x minus 6) EndFraction

**Answer:**

6, 2, 6, 2, 6, 6, 1

**Step-by-step explanation:**

a = 6

b = 2

c = 6

d = 2

e = 6

f = 6

g = 1

**Answer: 6, 2, 6, 2, 6, 6, 1**

**Step-by-step explanation:**

What is the slope of the line that passes through the points (3, -3)(3,−3) and (18, -3)(18,−3)? Write your answer in simplest form.

**Answer:**

0 (its a straight line horizontal)

**Step-by-step explanation:**

-3+3=0

18-3=15

0/15 = 0

slope=0

-4 + (-5) =

1 + (-4) =

**Answer:**

-9,-3

**Step-by-step explanation:**

-4+-5 = -9

1+-4 = -3

Think about a number line to help you

**Answer: -4 + (-5) = -9**

**1 + (-4) = -3**

**Step-by-step explanation: Subtract -4 and -5 and u get -9. Subtract 4 and 1 to get -3**

Simplify the expressions:

a. (7x²+ 2) + (2x² +3) =

b. (5x + 2) + (8x +3) =

c. (5x)(8x +3) =

**Answer:**

a. (7x²+2) + (2x²+3)

= 9x² + 5

b. (5x + 2) + (8x + 3)

= 13x +5

c. (5x)(8x + 3)

= 40x² + 15x

Here is an inequality: 7x+6<3x+2

Select all values that are solutions

x=1

x=0

x=-1

x=-2

x=-8

**Answer:**

x < -1

**Step-by-step explanation:**

7x + 6 < 3x + 2

7x - 3x + 6 < 2

7x - 3x < 2 - 6

4x < -4

x < -4 / 4

x < -1

what is the rewritten answer to solve for the variable? solve 4x-2y=14 for y

Answer:

y=-7+2x

Explain:

Move ‘y’to the left

-2y=14+5x

Divide by -2

-2y=14+4x/-2

y=-7+2x

y=-7+2x

Explain:

Move ‘y’to the left

-2y=14+5x

Divide by -2

-2y=14+4x/-2

y=-7+2x

Write the ratio 9:4 in the form n: 1

4 * 4 = 1

9 * 4 = 2.25

9:4 * 4 = 2.25:1

9 * 4 = 2.25

9:4 * 4 = 2.25:1

The **ratio** 9:4 in the form n:1 is 2.25:1.

The given ratio is 9:4.

What is the ratio?The **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 need to write the given **ratio** in the form n:1

Divide the given ratio by 4

9/4 : 4/4

⇒ 2.25:1

Therefore, the **ratio** 9:4 in the form n:1 is 2.25:1.

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Mia made at least one mistake when

simplifying the expression below. The steps she took are shown.

Step 1:

Step 2:

Step 3:

In which step did Mia make her first mistake?

Choose one option from each drop-down menu to answer the questions

Mia made a mistake in Choose. She simplified the Choose

Choose

incorrectly She should have

Using** properties of exponents**, it is found that Mia's first mistake is described as follows:

Mia made a mistake in Step 3. She simplified the exponents 16 and -8 incorrectly. She should have subtracted them.

Which properties of exponents are used in this problem?When two terms with the same base and different exponents are **multiplied**, we keep the base and add the exponents, as follows:

3^0 x 3^(16) = 3^(0 + 16) = 3^16.

Hence the Step 1 is correct.

For the **power of power** rule, we keep the base and multiply the exponents, hence:

(3^(-4))² = 3^(-4 x 2) = 3^(-8).

Hence the Step 2 is correct.

When two terms with the same base and different exponents are **divided**, we keep the base and subtract the exponents, as follows:

3^16/(3^(-8)) = 3^(16 - (-8)) = 3^(16 + 8) = 24.

Which is Mia's **mistake**, as she **did not subtract** the exponents.

The steps are missing and are given by the image at the end of the answer.

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Watch help video

Aisha went shopping for a new pair of sneakers. The listed price of the pair of

sneakers was $43, but the price with tax came to $44.29. Find the percent sales tax.

The percen**t sales tax** of the purchase is 3 %.

A **sales tax** is a consumption tax imposed by the government on the sale of goods and services.

She went shopping for a new pair of sneakers.

The listed price of the pair of sneakers was $43, but the price with **tax** came to $44.29.

Therefore, the percent **sales tax** can be found as follows:

**sales tax** = 44.29 - 43

**sales tax** = $1.29

Therefore,

percent **sale tax** = sale tax / cost with tax × 100

percent **sale tax** = 1.29 / 43 × 100

percent **sale tax** = 129 / 43

Therefore,

percent **sale tax** = 3%

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Dilate the following points by each scale factor (k) provided. P(3, 4) by k=1/2 And N(4, 15) by k=2
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