Answer:
c. 5
Step-by-step explanation:
Because 15 divided by 3 equals 5
So 25 divided by 5 equals 5 (dont know if it is correct)
Answer:
<h2>C. 71.2 in²</h2>
Step-by-step explanation:
We have the square in the base with side a = 4in and four triangles with base a = 4in and height h = 6.9in.
The formula of an area of a square:
A = a²
Substitute:
As = 4² = 16 in²
The formula of an area of a triangle:
A = (ah)/2
Substitute:
At = [(4)(6.9)]/2 = 27.6/2 = 13.8 in²
The Surface Area:
S.A. = As + 4At
Substitute:
S.A. = 16 + 4(13.8) = 16 + 55.2 = 71.2 in²
Check the picture below.
make sure your calculator is in Degree mode.
Answer:
(-2,-4)
Step-by-step explanation:
3x-2y=2---eqn1
5x-5y=10---eqn2
multiply eqn1 by 5 and eqn2 by 2
5(3x-2y=2)
2(5x-5y=10)
15x-10y=10---eqn3
10x-10y=20---eqn4
Now subtract eqn4 from eqn3
5x=-10
x=-2
Plug x=-2 into eqn1
3(-2)-2y=2
-6-2y=2
-6-2=2y
-8=2y
y=-4
Therefore the answer is (-2,-4)