Question one

farmer jones has 140 feet of fencing to construct a rectangular corral.

if x represents the width of the corral, which function can be used to express the area a of the

corral as a function of x?

a

a(x) = 70.0

b

a(z) = 2(70 - 2)

c

a(x) = a(140 – 2)

d

a(z) = x(140 – 22)

Step-by-step explanation:

Let

x ----> the width of the rectangular corral

y ----> the length of the rectangular corral

we know that

The perimeter of the rectangular corral is equal to

so

simplify

----> equation A

Remember that

The area of a rectangle is equal to

----> equation B

substitute equation A in equation B

Convert to function notation

i pretty sure it is

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168