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3 years ago

SOMEONE HELP!!! Can not get this wrong

Mathematics

1 answer:

pishuonlain [190]3 years ago

7 0

Answer:

This is an geometric sequence with a common ratio r of 1/2

Step-by-step explanation:

When you find out r, you realize the ratio between the numbers to be dividing by 2, or 1/2. Since it is r and not common difference d, it is an geometric sequence.

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Help !Which of the following describes the function x4 − 3?

Pachacha [2.7K]

D. the degree of x4-3

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3 years ago

Joanna joins a CD club. She pays $7 per month plus $10 for each CD that she orders. Write an inequality to find how many CDs she

Effectus [21]

Lets use x as the number of CD's that she will buy in a month. So knowing that, our inequality can look like this. 7 + 10x < or = 100. Why? because we will have to multiply 10 with the number of CDs she will purchase in a month to get the total she spends. Hence 10 times x. She also has to add a 7 membership fee per month to this. Also, she has to remember that what she paid has to be less or equal to 100 because the problem states that she spends no more than 100 a month.

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3 years ago

What is the 48th term of the arithmetic sequence with this explicit formula?

mariarad [96]

Option B

48th term of arithmetic sequence is -152

<h3>Solution:</h3>

Given that a arithmetic sequence has explict formula,

$a_n = -11 + (n - 1)(-3)$

To find: 48th term of the arithmetic sequence

The nth term of arithmetic sequence can be found by substituting the required value of n in the explict formula

So 48th term of the arithmetic sequence can be found by substituting n = 48 in explict formula

$a_n = -11 + (n - 1)(-3)$

Plug in n = 48

$a_{48} = -11 + (48 - 1)(-3)$

On solving we get,

$a_{48} = -11 + (47)(-3)\\\\a_{48} = -11 - 141\\\\a_{48} = - 152$

Thus 48th term of arithmetic sequence is -152

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2 years ago

If the label of a can of yams were cut off and laid flat, which expression would give the area, A, of the label with the measure

Arturiano [62]

The correct answer is A = 2 x pi x r x h. So basically the answer is C. Hope I helped! :)

6 0

3 years ago

Read 2 more answers

Heather, a sociology major is interested in studying mass media topics. She is particularly interested in the percentage of mass

Serhud [2]

Answer:

Null hypothesis: $p=0.72$

Alternative hypothesis: $p \neq 0.72$

$p_v = 2*P(|z|>z_{calc})$

And the best answer for this case is:

C. p-value

Step-by-step explanation:

Data given and notation

n represent the random sample taken

$\hat p$ estimated proportion of interest

$p_o=0.72$ is the value that we want to test

$\alpha=0.05$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion i 0.72 or no.:

Null hypothesis: $p=0.72$

Alternative hypothesis: $p \neq 0.72$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

For this case the only probability that can be calculated from the statistic calculated is the p value given by:

$p_v = 2*P(|z|>z_{calc})$

And the best answer for this case is:

C. p-value

3 0

2 years ago