Answer:
The correct answer is A
Step-by-step explanation:
20% x 12 = 2.4
2.4 + 12 = 14.4
20% x 8 = 1.6
1.6 + 8 = 9.6
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Answer:
17 seconds
Step-by-step explanation:
h(t) represents height, we want to know when the ball will return to a height of 28 feet. So our equation is..
28 = -2t² + 34t + 28
Now solve for t...
0 = -2t² + 34t (subtract 28 from both sides)
0 = t² - 17t (divide both sides by -2)
0 = t(t - 17) (factor out a t)
So
t = 0
or
t - 17 = 0
t = 17
0 seconds is the initial height. At 17 seconds, the ball will return to that height
Hope this helped, from what i recall, i think this is how you solve the problem.
Answer: do the math
Step-by-step explanation:
Answer:
feet
Step-by-step explanation:
This question uses special right triangles.
There are two main special triangles to remember.
Attached is a diagram of the triangle. Both the base and the height are the same, so the 14 foot-long ladder is the hypotenuse.
The hypotenuse of a 45-45-90 triangle is equal to
, where k is the side length.
We can solve for the side lengths by using this equation:

Simplifying this equation by dividing both sides by the square root of 2 and rationalizing the denominator, we get

Your side length of the height of the triangle is equal to 7 times the square root of 2.