Answer:
13 ft
Step-by-step explanation:
We assume your height formula is intended to be ...
h(t) = -16t² +20t +7
This will have its maximum value at ...
t = -b/(2a) = -20/(2(-16)) = 5/8
The height at that time is ...
h(5/8) = (-16(5/8) +20)(5/8) +7 = 10(5/8) +7 = 106/8 = 53/4 = 13 1/4 . . . ft
To the nearest whole foot, the diver will reach a height of 13 ft above the pool.
_____
<em>Additional comments</em>
The standard form quadratic can be described as ...
f(x) = ax² +bx +c
The extreme value occurs at ...
x = -b/(2a)
This can also be written as ...
f(x) = (ax +b)x +c
which can make it easier to evaluate for some numerical value of x.
<h3>
Answer:</h3>
B) 7x - 1
<h3>
Step-by-step explanation:</h3>
In this question, you're going to solve by adding both f(x) and g(x) together.
You're finding (f+g)(x), meaning that you will be adding both of the equations to get your answer.
What (f+g)(x) looks like:
(5x - 2 + 2x + 1)(x)
What you would do is solve to get your answer. You're going to be combining like-terms and adding.
When you're done solving, you should get 7x - 1
This means that B) 7x - 1 would be the correct answer.
<h3>I hope this helps you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
Answer: C is no and the others are yes.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Let's assume
number of nickels =n
number of dimes =d
we are given
total number of coins =9
so, we get
we know that
1 nickel =$ 0.05
and
1 dimes =$0.10
so, total amount is
we are given
total amount =$2.15
so, we get
so, we get system of equations as
................Answer
