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3 years ago

3 times the quantity of d squared plus r, minus 2 times the quantity of d squared plus r

Mathematics

1 answer:

Stella [2.4K]3 years ago

3 0

D^2+ r because 3(d^2 + r ) - 2(d^2 + r ) = d^2+ r

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How do I find and mean within the data set?

kvv77 [185]

The mean is like the average. you would add up all the numbers and divide by the amount of numbers there are. in this case, add them all up and divide by 6 because there are 6 different numbers. this will give you your answer

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3 years ago

The perimeter of rectangle 1 and rectangle 2 together is 274 feet. What is the perimeter of rectangle 2?

alexandr1967 [171]

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Step-by-step explanation:

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2 years ago

Read 2 more answers

A lender will make an 80% loan-to-value loan on a property that is appraised for $72,250 and sells for $73,500. If the buyer has

anyanavicka [17]

Answer:

$1,250

Step-by-step explanation:

We are given;

Loan to value ratio;LTV = 80% = 0.8

Appraised value of property = $72,250

Selling value of property = $73,500

Now, the formula for Loan to value ratio is;

LTV = Loan amount/Appraised value of property

0.8 = loan amount/72250

Cross multiply to get;

Loan amount = 0.8 × 72250 = $57,800

Now,we are told that he has saved $14,450.

Thus, total money raised including loan = $57,800 + $14,450 = $72,250

Since the selling value = $73,500, then,

Amount left for him to save in order to make down payment = $73,500 - $72,250 = $1,250

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3 years ago

Which of the figures appear to be congruent?

Tomtit [17]

Answer:

I think it's C.

Step-by-step explanation:

The figures are rotated but they still have the same shape, size, and length.

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2 years ago

The amount of time that a 4th grader reads comic books in a week is normally distributed with a mean of 6 hours and a standard d

Reika [66]

Answer:

The probability that at least one of the 20 4th graders is addicted to comic books is 0.12.

Step-by-step explanation:

Let X = number of hours a 4th grader reads comics and Y = number of 4th grader addicted to reading comics.

The random variable X is continuous and follows a normal distribution with mean, μ = 6 hours and standard deviation, σ = 2 hours.

And the random variable Y is discrete and follows a binomial distribution with success defined as a 4th grader is addicted to reading comics.

Compute the probability that a 4th grader is addicted to reading comics as follows, i.e. determine the value of P (X > 11) .

$P(X>11) = P(\frac{X-\mu}{\sigma} >\frac{11-6}{2})\\=P(Z >2.5)\\=1-P(Z$

Use the <em>Z</em>-table for the probability value.

Now compute the probability that out of 20 fourth graders at least 1 is addicted to comics as follows:

The Binomial probability function is:

$P(Y)=^{n}C_{y} p^{y} (1-p)^{n-y}$

Compute the value of $P(Y\geq 1)$ as follows:

$P(Y\geq 1)=1-P(Y$

Thus, the probability that at least one of the 20 4th graders is addicted to comic books is 0.12.

8 0

3 years ago