Answer:
Write the problem as a mathematical expression.
X=−1/5; f(x)=(25/2)x+(−91/2)
Replace the variable x with x=−1/5 in the expression.
f(−1/5)=(25/2)(−1/5)−91/2
Simplify the result.
−48
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
Width: 10.5 feet
Length: 31.5 feet
Step-by-step explanation:
Let x represent width of the concrete slab.
We have been given that the length of a concrete slab is three more than three times the width. So length of the slab would be
.
We are also told that the area of slab is 330 square feet. We can represent this information in an equation as:




Now, we will take square root of both sides.


Therefore, the width of slab is approximately 10.5 feet.
The length of the slab would be
.
Therefore, the length of slab is approximately 31.5 feet.