Here are all of the answers for the problems showed...
10- 8.72=8.720
13- 2.573<2.753
16- 2.97, 2.714, 2.09, 2.007
Answer: I tried and I think the answer is a
Step-by-step explanation:
hi
You will only progress by trying yourself.
so I do the first, you do the rest.
You have to remplace x by 3
so first expression is : x²-4x
by remplacing "x" by it's value (3) we have :
(3)² -4(3) = 9 -12 = -3
Have a try for the rest and ask in comment if you dont understand.
Answer:
a) f(x) = 6x^2 - 4x
b) 80 ft²
Step-by-step explanation:
Refer to attached for full question
a.
<u>Area formula for rectangle:</u>
We see the width of the white part of the banner is 3x - 2 and height is 2x
<u>Function to define the area</u>
- f(x) = (3x - 2)*2x = 6x^2 - 4x
b.
<u>If maximum width of white area is 10 ft, then the dimensions are:</u>
- 3x - 2 = 10 ⇒ 3x = 12 ⇒ x = 4
- w = 10, h = 2*4 = 8
- A= 10*8 = 80 ft²
Kevin is 24 years old and Daniel is 12 I believe