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Not quite....calculate this :

2 (7)   +  4sqrt (8)

2. Is it B

  The x part woukd be rise over run
4x
Would be up 4 over one
1/4x would be up 1 over 4

You can count them here :

https://www.desmos.com/calculator/yzb4ommgz3

is it D

The top and bottom sides   =  7  each

The other two sides  = 2sqrt (2^2 + 2^2)    each

Volume  = (1/3) pi r^2 *h

1200 = (1/3) * pi *  5^2 * h

Can you solve this for h   ???

Correctamundo, macabre!  Good work! 

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First one

Notice that the  x oordinate  for  C  must be    (0 + 8) /  2

Second one

The slope of both lines is positive  and the slope of the second line  is less than the first line......what's the answer   ????

Third one

The angle we are looking for is supplemental to 130°

First one

Let x  be the number of Brian's pets

Then x + 4  is the number of   Joe's pets

Together.....the have at least 7 pets

So

x + x + 4 ≥  7

2x + 4 ≥ 7

Second one

Sub 11 in for x  and evaluate

Last one    

B) k = 6j

Correct  !!!

9 + 9 = x^2      

18 = x^2

x = 3√2 ft

A bookcase is 3 feet high and 3 feet wide. Two braces are going to be built to diagonally cross the back of the case. How long is the piece of wood that is needed to build each brace ?   

Each diagonal forms the hypotenuse of a right triangle.  I would use the Pythagoras Theorem to determine its length.  Draw it on paper if you need to.

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Point 1   (-1, -2)

point 2   (2,3)

(y₁-y₂₎ / ( x₁-x₂₎

(-2-3) / (-1-2) = -5/-3 = 5/3

"If Your New" should say "If You're New".

1. D

EP: Yours much better!.

How about:

sqrt(1) + sqr(4) + sqrt(9) + sqrt (16) + sqrt(25) = sqrt (225)  

Well, how about: sqrt(4) + sqrt(9) + sqrt(16) + sqrt(25) + sqrt(36) =sqrt(400) !.

1. C

2. B

For the first one, you are given two points....calculate the slope using this method:

https://web2.0calc.com/questions/what-is-the-slope-of-the-line-that-contains-the-points_1

For the second one,  the mid point will be given by the averages of the x and y values

 I'll do the 'x' one.....you do the 'y' one

 (x₁ + x₂₎   / 2 =  (1+5)/2 = 3   = x point of the midpoint.....now for the y:

?

A parabola with a positive a value has a minimum point, meaning that this problem is referencing the parabola in the top right. The vertex of the top right one is (3,2) (B)

1. The length of the larger rectangle is 4, and the smaller one is 2. The width of the large rectangle is 2, and the smaller one is 1.

4/2 = 2/1 = 2

The scale factor of the similar figures is  2:1 (B)

2. The square has area of 144 cm^2, meaning that it has side length 12. This means that the diameter of the circle is 12, so the radius is 6

The formula for the area of a circle is πr^2. 

Area = π36, or 36π cm^2 (E)

1. If g(x) = 3x^3 - 4x^2 + 5, find g(-2).

3(-2)^3 - 4(-2)^2 + 5 = 3(-8) - 4(4) + 5 = -24 - 16 + 5 = -35 (B)

2. If f(x) = -x + 4 and g(x) = x^2 - 5, then g(f(-1)) = ?

f(-1) = 1+4 = 5

g(5) = 25 - 5 = 20 (E)

3. If f(x) = x^2 and g(x) = 3x + 1, then f(g(2))= ?

g(2) = 6 + 1 = 7

f(7) = 49 (E)

4. If f(x) = - 2x^2 + 2x - 3, what is f(5)?

f(5) = -2(25) + 10 - 3 = -50 + 10 - 3 = -43 (B)