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Ipatiy [6.2K]
3 years ago
15

Write an expression to describe a rule for the sequence then find the one hundredth term in the sequence

Mathematics
1 answer:
Artyom0805 [142]3 years ago
3 0
T(100) = 1st term + (100-1)difference between terms
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3 years ago
Four girls have 5.00 to share equally. How much money will each girl get. Explain
Dennis_Churaev [7]

Answer:

Each will get $1.25

Step-by-step explanation:

5.00/4

= $1.25

5 0
3 years ago
I WILL GIVE BRAINLEST PLEASE HELP
guapka [62]

Answer:

A

Step-by-step explanation:

In this question, we are concerned with selecting which of the options best represents the difference of two squares.

Let’s have an exposition below as follows;

Consider two numbers, which are perfect squares and can be expressed as a square of their square roots;

a^2 and b^2

where a and b represents the square roots of the numbers respectively.

Inserting a difference between the two, we have;

a^2 - b^2

Now by applying the difference of two squares, these numbers will become;

a^2 - b^2 = (a + b)(a-b)

So our answer out of the options will be that option that could be expressed as above.

The correct answer to this is option A

Kindly note that;

x^2 -9 can be expressed as x^2 - 3^2 and consequently, this can be written as;

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7 0
3 years ago
A researcher wants to estimate the percentage of all adults that have used the Internet to seek pre-purchase information in the
lara31 [8.8K]

Answer:

The sample size is 1875.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

Sampling error of 0.03.

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99.74% confidence level

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25% of all adults had used the Internet for such a purpose

This means that \pi = 0.25

What is the sample size

The sample size is n. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 3\sqrt{\frac{0.25*0.75}{n}}

0.03\sqrt{n} = 3\sqrt{0.25*0.75}

Simplifying by 0.03 both sides

\sqrt{n} = 100\sqrt{0.25*0.75}

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The sample size is 1875.

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3 years ago
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