Answer:
f(1) = - 5, f(5) = 6
Step-by-step explanation:
(a)
f(1) with x = 1 is in the interval x ≤ 1 , thus
f(1) = - 5
(b)
f(5) with x = 5 is in the interval x > 1 , thus f(x) = 2x - 4 , so
f(5) = 2(5) - 4 = 10 - 4 = 6
Answer:
The answer is B. Associative.
Step-by-step explanation:
The reason why its B because the associative property states that even if the numbers are regrouped, the answer will still be the same.
I might be wrong
Answer:
A
I hope this will help you.
Answer:
8.66
Step-by-step explanation:
√(75)
= 8.660254038
≈ 8.66 (nearest hundredth)
Answer:
<em>A = 250 square ft</em>
Step-by-step explanation:
<u>Equations</u>
Let's call:
x = width of the game room
The length is 5 more than twice the width, thus:
2x+5 = length of the game room
The perimeter of a rectangle is twice the sum of the width and the length:
P = 2( x + 2x + 5 )
And the perimeter is 70 ft:
2( x + 2x + 5 ) = 70
Operating:
2( 3x + 5 ) = 70
Dividing by 2:
3x + 5 = 35
Subtracting 5:
3x = 30
Dividing by 3:
x = 30 / 3
x = 10
The width is 10 ft and the length is 2(10)+5=25 ft
The area of the game room is:
A = 10 ft * 25 ft
A = 250 square ft