**Answer: -0.75**

1/8 - 1(7)/8 = -3/4= -0.75

**Answer:**

[tex]\frac{1}{8} -1\frac{7}{8}[/tex]

[tex]\frac{1}{8} -\frac{15}{8}[/tex]

[tex]\frac{1-15}{8}[/tex]

[tex]-\frac{14}{8}[/tex]

[tex]-\frac{7}{4}[/tex]

[tex]-1\frac{3}{4}[/tex]

**Step-by-step explanation:**

Verify [cos(x)/1+sin(x)] - [cos(x)/1-sin(x)] = -2tan(x)

**Answer:**

L.H.S = R. H.S

**Step-by-step explanation:**

Hope, you see the image .

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** ****This**** ****process**** ****is**** ****for**** ****grade**** ****9**** ****and**** ****above**** **

** ****For**** ****lower**** ****level**** ****you**** ****can**** ****express**** ****all**** ****tri****.****.**** ****ratios**** ****in**** ****p**** ****,**** ****b**** ****&**** ****h**** ****and**** ****prove**** ****it**

A clerical worker takes 3 times as long to finish a job as it does an executive secretary. Working together, it takes them 4 hr to finish the job. How long would it take the clerical worker, working alone, to finish the job?

**Answer:**

8 hours

**Step-by-step explanation:**

In 2 hours, the clerical secretary can do 1/4 of the job. (The executive secretary does 3/4 of the job - or 3 times as much - in the same 2 hours.)

Since it takes the clerical secretary 2 hours to do 1/4 of the job, it will take them four times that to do it themselves. 2x4=8.

Ash began her hike at 1,986 feet above sea level. She then hiked down 2,510 feet decreased her altittude by

another 420 feet and then increased her altitidue by 712 feet. What is Addison's final altitude ?

Vocab: Altitude

means the height of an object or point in relation to sea level or ground level.

**Answer:**

1986-2510=-524

-524-420=-994

-994+712=-232

final altitude=-232

**Step-by-step explanation:**

7. A college professor asked her psychology students to complete a personality test. She paid special

attention to her students' greatest fears. The probability of a student being afraid of snakes is 1/3. The

probability of a student being afraid of heights and being afraid of snakes is 2/15. What is the probability

that a student is afraid of heights?

15

(1)

(3)

MIN

(2)

(4)

**Answer:**

2

**Step-by-step explanation:**

true of false if a shape has two pairs of parallel sides then it is a parallelogram

**Answer:**

false

**Step-by-step explanation:**

it could be a square/ rectangle/ other shapes as well

Name all the word(s) that can be used in place of classify

A.rank

B.all of the above

C.organize

D.sort

E.Group

the answer would be A rank

**Answer:**

B.) all of the above.

**Step-by-step explanation:**

**Rank, organize, sort,** and** group** are all good synonyms to use in place of the word **classify. **

**Examples:**

*"Children need to know that we **classify **things every day in order to separate information."*

And, you can also say:

*"Children need to know that we **sort **things every day in order to separate information."*

*"Children need to know that we **group **things every day in order to separate information.*

Alright, I think you get it now, right? Thanks for posting the question, fam. Have a nice day.

If the temperature is -3 degrees F at 10:00 p.M., and the temperature falls four degrees overnight, what is the resulting temperature?

**Answer:**

-7

**Step-by-step explanation:**

**Answer:**

-7

**Step-by-step explanation:**

Each base in this oblique prism is a right triangle.

5 cm

12 cm

11cm

3 cm

4 cm

What is the volume of the figure?

35 should be right but I’m

Sorry if I’m wrong don’t hate me

Sorry if I’m wrong don’t hate me

Answer: 66

Step-by-step explanation:

I did it on khan

What is the surface area of a sphere with a radius of 10 feet? (Use 3.14 for π.)

703.36 ft 2

314 ft 2

1,256 ft 2

251.2 ft 2

**Answer:**

hi

**Step-by-step explanation:**

Solve the equation.

pls help

**Answer:**

y=-3

**Hope this helps!**

Please please help I beg you

**Answer and Step-by-step explanation:**

Work is in the picture.

We get [tex]30\sqrt{2}[/tex] as the side length, and 180 as the area of the square.

**#teamtrees #PAW (Plant And Water)**

Find the volume of the cylinder.

Either enter an exact answer in terms of T or use 3.14 for T.

8

**Answer: V= 100.48 m^3 or in terms of Pi V = 32 π m^3 **

**Step-by-step explanation:**

V = πr^2h

V = π(2)^2(8)

V = π(4)(8)

V = 100.48

or

V = π (4)(8)

V = 32 π m^3

if £1=$1.56, what is $1 worth

0.73

Hope that helps :)

Hope that helps :)

Write the expression representing the total number of miles run: Jazmin ran 3 miles on Monday. For the next 4 days, she ran x miles each day.

**Answer:**

4 + x

**Step-by-step explanation:**

describe and correct the error in the factoring polynomial. x^2+4x-96=(x-12)(x+8)

**Answer:**

100.03

**Step-by-step explanation:**

i think it is correct

can someone that is good at 7th grade math help me plzzzz

**Answer:**

-4 *-4 *-4

= 16*-4

= ANWSER

-9*-9

=81

**Step-by-step explanation:**

What are the length and width of the rectangle?

(picture included)

**Answer:**

a or c

**Step-by-step explanation:**

I don’t know ask for help sorry don’t blam this on me

I need help fast no scammers

**Question: **

Find the * area* of the composite figure round to the nearest

**Answer:**

**Step-by-step explanation:**

(25 x 12) + (10 x 6)

round it 360 >>>>> 360 it is the *same*

**Answer:**

360

**Step-by-step explanation:**

Split the given figure up into two different rectangles. One of these rectangles will have the dimensions (12 and 25), while the other will have the dimensions (6 and 10) Find the area of each rectangle using the general formula ([tex]length * width = area[/tex]), then add the two areas up to find the total area of the figure.

12 * 25

= 300

6 * 10

= 60

300 + 60

= 360

Find the value of b. Round your answer to the nearest tenth.

**Answer:**

[tex]x = 29.65 \\ = > x = 30[/tex]

Solve the system of equations using the substitution method. Show your work and be sure to include the solution to the system y=x-1 2x+y=8

**Answer:**

Is that simultaneous equation

**Answer:**

Solve the system of equations using the substitution method. Show your work and be sure to include the solution to the system.

**Step-by-step explanation:**

y=x-1

2x+y=8

what is 2x-15+21= -18

Hopes this helps:

Answer: x = -12

How I know I use this app called Cymath.

Answer: x = -12

How I know I use this app called Cymath.

**Answer:**

2x - 15 +21 = -18

2x + 6 + 18 = 0

2x + 24 =0 ...it is a linear equation

if u want to solve for X then..

2x = -24

X = - 24

2

X = -12

A data set is shown below. { 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 } Which of the following best represents a measure of center for the values in this data set?

**Answer:**

51

**Step-by-step explanation:**

f(x) = -2^2 + 6x + 1

f(5) =

613 **Step-by-step explanation:**

Solve the following system of equations by substation.

5y = 7x + 22

x = -6y + 17

A. (2,-1)

B. (5,3)

C. (-1,3)

D. (-1,4)

**Answer:**

C. (-1, 3)

**Step-by-step explanation:**

Label the 2 equations:

5y= 7x +22 -----(1)

x= -6y +17 -----(2)

Substitute (2) into (1):

5y= 7(-6y +17) +22

5y= -42y +119 +22 *(**Expand** **bracket**)*

5y= -42y +141 *(**Simplify**)*

42y +5y= 141 *(**+**42y** **on** **both** **sides**)*

47y= 141

y= 141 ÷47 *(**÷**4**7** **on** **both** **sides**)*

y= 3

Substitute y= 3 into (2):

x= -6(3) +17

x= -18 +17

x= -1

Thus, the solution is **(-1, 3)**.

1/2 x (6 x 4) divided 3 + 2

**Answer:**

6

**Step-by-step explanation:**

6*4=24

1/2*24=12

3+2=5

12/5=6

Parenthises

Exponets

Multiplication

Divide

Add

Subtract

Hope this helps!!

**Answer:**

6

**Step-by-step explanation:**

1/2 x (6 x 4) ÷ 3 + 2

(We do the equation in the parenthesis 1st)

1/2 x 24 ÷ 3 + 2

(Since it's multiplication and division, we just go from left to right)

4 + 2

6

What is the value of x in this diagram?

If it isn’t 80 then it will be 40

Fre.e points i guess 2+2+2x5=

**Answer:**

14

**Step-by-step explanation:**

evaluate multiplication first

**14**

**hope this helped :l**

Heelp me, please.................

**Answer:**

B

**Step-by-step explanation:**

An airline uses many different types of airplanes. Information regarding some of the airplanes is given in the table below. A 5-column table with 5 rows. Column 1 is labeled Plane with entries SkyBus 280, SkyBus 580, Grigson A-2, Grigson A-5, SkyDancer. Column 2 is labeled Number of seats with entries 120, 225, 70, 130, 350. Column 3 is labeled Seat width (inches) with entries 20.3, 20.6, 19.9, 20.5, 20.2. Column 4 is labeled Wi-fi with entries no, yes, no, yes, yes. Column 5 is labeled first-class seats question mark with entries no, yes, no, no, yes. Which of the variables is a continuous variable? number of seats seat width Wi-Fi first-class

**Answer:**

b took the test right now

**Step-by-step explanation:**

The required, seat **width **is the **continuous **variable in the given table.

**Continuity **is a mathematical **concept **that describes the **smoothness** of a **function **or a curve. A function is said to be continuous if there are no abrupt changes or breaks in the values it takes as the input varies. More formally, a function f(x) is continuous at a point x = a if the limit of f(x) as x approaches a from both sides exists and is equal to f(a).

For example, a function that describes the temperature in a room as a function of time is continuous if there are no sudden changes or jumps in the temperature.

Here,

The number of seats is not a continuous variable because it can only take discrete values (such as 120, 225, etc.).

The Wi-Fi and first-class variables are not continuous either because they are categorical variables that can only take a limited number of values (yes or no).

The seat width variable, however, is a continuous variable because it can take on any value within a range of values (such as between 19.9 inches and 20.6 inches). Therefore, seat width is the continuous variable in the given table.

Learn more about **continuity **here:

https://brainly.com/question/24898810?referrer=searchResults

#SPJ7

Which statement about the data is true

**Answer:**

D. A value of 0.9 is more than 2 standard deviations from the mean.

**Step-by-step explanation:**

A is wrong, because the standard deviation is +/-0.15 (the measure up or down from the mean)

B is wrong, because the mean is exactly 0.5

C is wrong, because 1 standard deviation up from the mean is 0.65, and 0.7 is outside of that.

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Even though the amendment that allowed income tax was passed again in 1913, what events led to its being enforced among all americans?.
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