Answer:
B
Step-by-step explanation:
Use the distance formula in 3 dimensions
d = 
with (x₁, y₁, z₁ ) = (3, 4, 10) and (x₂, y₂, z₂ ) = (8, 4, - 2)
d = 
= 
= 
= 
= 13 → B
Start from

Multiply both sides by 2:

Which you can rewrite as

Answer:
k = -64
Step-by-step explanation:
I'll assume that you meant "(1/4)k." Please use parentheses in cases such as this one.
Subtract 17 from both sides, obtaining (1/4)k = -16.
Multiply both terms of this result by 4 to eliminate the fraction 1/4:
k = -64
My answer was 56/27. Here is the work I did.
Answer:
42 sq ft
Step-by-step explanation:
First, I will do the small triangle on the right.
2 x 3 = 6
6/2 = 3 sq ft
Next the large rectangle.
11 x 3 = 33 sq ft
Next the large triangle on the left.
3 x (11-7)
3 x 4 = 12
12/2 = 6 sq ft
Add them all together.
6 + 33 + 3 = 42
sorry if im wrong <3