The answer should be option A. 8x^2+18x+36
Answer:
11 out of 24
13 out of 24
Step-by-step explanation:
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
Answer:
Let's solve for the radius.
r = C / 2π = 88 / (2 * 22/7) = 14
Volume of a cone = 1/3 * πr²h
= 1/3 * 22/7 * 14² * 15
= 3080 cm³
Answer:
15
Step-by-step explanation:
| −5 −2(5)|
Since absolute value is positive that would be
5 + 10 = 15
Here's another way of looking at it:
| −5 − 10| Subtract 10 from -5
| −15| since absolute value is positive, the answer is 15