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.
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<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.
Answer:
135.4
Step-by-step explanation:
800 - 664.6 = 135.4
Answer:
Yay! Christmas Music!
Step-by-step explanation:
Have a nice day! What was this question for though?
Answer
Find out the what is her monthly fixed charge .
To prove
Let us assume that the cost per mintues = x
Let us assume that the monthly charge be = y
As given
n Chatty Cathy’s cell phone plan she pays for minutes used plus a fixed monthly charge.
For 500 minutes she pays $35 total
Than the equation becomes
500x + y = 35
As given
for 1500 minutes used she pays $55 total.
Than the equation becomes
1500x + y = 55
Subtracted 500x + y = 35 from 1500x + y = 55
1500x - 500x + y - y = 55 - 35
1000x = 20
x = $0.02
Put in the 500x + y = 35
500 × 0.02 + y = 35
10 + y = 35
y = 35 - 10
y = $25
Therefore the monthly fixed charge be $25.
Answer:
5324
Step-by-step explanation:
formula=πr^2 h
22÷7×11×11×14=
22÷7×1694=
242×22=5324 cm
