Answer:
5/V2=2.5×V2
Step-by-step explanation:
This is an isoscelle right triangle:
x²+x²=5²
2x²=5²
x=5/V2=5×V2/2=2.5×V2
where V2=sqrt(2)
Answer:

Then the answer is C
Step-by-step explanation:
1) Set a linear equation

2) Cross multiply

3) Multiple the right side

4) Divide both side by 2

5) Solving the linear equation

The answer is (C)
Answer:
A. cos 60° = ; x = 6 feet
Step-by-step explanation:
apex
Answer:
x < -3
Step-by-step explanation:
2x - 3 < -9
Add 3 to each side
2x - 3+3 < -9+3
2x < -6
Divide by 2
2x/2 < -6/2
x < -3
Step-by-step explanation:
(square)+(rhombus)..............