Answer: option <span>C. A garage door is 6 feet wider than it is tall. The area of one side of the garage door is 146 square feet.
Justification:
Call x the height of the garage door.
Then, the width is x + 6
And the area of one side is height * width = x (x + 6) = x^2 + 6x
That is equal to 146 feet^2
=> x^2 + 6x = 146
</span>
Answer:
30.39in^2 (^2 means squared)
Step-by-step explanation:
3 x 3 = 9in^2
3.1 x 6.9 =21.39in^2
9 + 21.39 = 30.39in^2
Answer:
let height of ||g be 'b', then base of ||g be 3b.
area of ||g=base×height
75cm
2
=3b×b
b
2
=25
b=5cm, therefore height =5cm
Use the Pythagorean Theorem to find the length of the side marked "x."
x^2 + (10 mi)^2 = (13 mi)^2. Thus, x^2 + 100 mi^2 = 169 mi^2.
Next, x^2= (169-100) mi^2, or x^2 = 69 mi^2. Find the positive square root of both sides of this equation. What is it?
Let's have two numbers x (larger) and y (smaller). from the info above...
x + y = 3
5x + 4y = 29
so that means y=3 - x. we can sub this in
5x + 4(3-x) = 29
5x + 12 - 4x = 29
x = 17
then y=3-x=3-17=-14
so it's 17 and -14
