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3 years ago

What is 9+10 pls helpppppppppp

Mathematics

1 answer:

pishuonlain [190]3 years ago

3 0

19 mathematically
21 if you want a joke

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Does anyone know at this means:

Lostsunrise [7]

Let's say x = 16. In the equation 4 + x(3/x) then you use 16 instead of x. So it would look like 4 + 16(16/3). 4 plus 16 times 16 divided by 3.

4 0

3 years ago

If y=-2(x-3), find y when x = 3

S_A_V [24]

Answer:

y =0

Step-by-step explanation:

y=-2(x-3)

Let x= 3

Find the value of y

Substitute this value into the equation

y=-2(3-3)

y = -2(0)

y = 0

5 0

2 years ago

Read 2 more answers

You are testing the null hypothesis that the population proportion equals .45, using data you collected from a sample of 100 adu

Sedaia [141]

Answer:

$z=\frac{0.3 -0.45}{\sqrt{\frac{0.45(1-0.45)}{100}}}=-3.015$

Step-by-step explanation:

Data given and notation

n=100 represent the random sample taken

$\hat p=0.3$ estimated proportion of interest

$p_o=0.45$ is the value that we want to test

$\alpha$ 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 is 0.45.:

Null hypothesis: $p=0.45$

Alternative hypothesis: $p \neq 0.45$

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 $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.3 -0.45}{\sqrt{\frac{0.45(1-0.45)}{100}}}=-3.015$

5 0

3 years ago

What is the solution to 2x-8 <122<br> x<2<br> O x<8<br> x<10<br> O x<40

vladimir2022 [97]

Answer:

O x<40

Step-by-step explanation:

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3 years ago

Find the total surface area, leave your terms in pi.

Ilya [14]

Answer:

75.39822

Step-by-step explanation:

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3 years ago