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fomenos
2 years ago
14

The equation h(x) = -3x^2 +75 models the height of an acorn as it falls from a tree 75 feet above the ground after each second,

x. After how many seconds does it hit the ground?
Mathematics
1 answer:
OleMash [197]2 years ago
5 0

Answer:

this is lots of words that my brain can't understand :/

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3.16×10 tool the third power
Whitepunk [10]
The answer is 160 to this problem
6 0
3 years ago
According to records, the amount of precipitation in a certain city on a November day has a mean of 0.10 inches, with a standard
Andru [333]

Answer:

The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days

P(X≤ 0.11) = 0.4404

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the mean of the Population = 0.10 inches

Given that the standard deviation of the population = 0.07inches

Let 'X' be a random variable in a normal distribution

Z = \frac{x-mean}{S.D} = \frac{0.11-0.10}{0.07} = 0.1428

<u><em>Step(ii):-</em></u>

The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days

P(X≤ 0.11) = P(Z≤0.1428)

               =  1-P(Z≥0.1428)

              =  1 - ( 0.5 +A(0.1428)

            =  0.5 - A(0.1428)

            = 0.5 -0.0596

           = 0.4404

<u><em>Final answer:-</em></u>

The probability that the mean daily precipitation will be 0.11 inches or less for a random sample of November days

P(X≤ 0.11) = 0.4404

8 0
3 years ago
What is 11:40 - 1 1/2
suter [353]

Answer: 10:10

Step-by-step explanation:

3 0
3 years ago
Kevin said that if you triple his age the result will be 1 less than his mother age
Ivahew [28]
Basically, this problem is saying that if you multiply x by 3, then you will get a number that is one less than y. So, if you switch that around a bit, then the problem is saying that if you subtract 3x from y, you'll get 1. 

Your final answer should be y - 3x = 1.
8 0
4 years ago
What is the perimeter of the rectangle? one side is 6in. and the A=30 sq in.
monitta
The perimeter of a rectangle can be found by dividing the area by one side.
30/6=5
Then, add the sides up and you get the perimeter.
5+5+6+6=22

The answer is 22 inches.
3 0
3 years ago
Read 2 more answers
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