Volume V=3*10=30 feet³ -- > one <span>piling
10 </span>pilings----------------- > V=30*10=300 feet³
The answer is 300 feet³ of cement
There is none except for eleven and that is it
Answer:
The answer is the option A

Step-by-step explanation:
Let
x-------> the width of the border
we know that
The total area of the window plus the border is equal to


Using a graphing tool -----> to resolve the quadratic equation
see the attached figure
The solution is

Answer:
64
Step-by-step explanation:
A negative exponent means we first calculate the exponent, then we take the reciprocal.
The first step is to calculate
. This is equal to
. Then, we take the reciprocal. The answer is 64.
Answer:
y=14
Step-by-step explanation:
- the triangle is equilateral triangle
- angle A = angle B
- so we immediately got the answer for x.. x=25
- so 180°-100°=80°
- 5y+10°=80°
- 5y=80°-10°
- 5y=70°
- y=70°/5
- y=14