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2 years ago

The question is in the photo :) i’m struggling

Mathematics

1 answer:

amm18122 years ago

4 0

A is 10% and B is 5%

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Teni had 16 berries. She has a number two greater than Marta. How many berries Marta had

Hitman42 [59]

I think the answer is 8
but im not 100% sure

5 0

2 years ago

Read 2 more answers

Need help!! You can buy 10 yogurts for $6.50. How much would it cost for nine yogurts!?

ahrayia [7]

To solve this problem, you should find the rate ---> cost per yogurt (cost/yogurt)

$6.50/10 yogurts = $0.65/yogurt

It costs $0.65 per yogurt, so you can multiply 9 by $0.65 to find the total cost of 9 yogurt.

9(0.65) = $5.85

6 0

2 years ago

Why is the answer E?

bearhunter [10]

Step-by-step explanation:

The only way the answer could be E is if the x² term under the radical is supposed to be t².

f(x) = ∫₄²ˣ √(t² − t) dt

f'(x) = √((2x)² − 2x) (2)

f'(x) = 2√(4x² − 2x)

f'(2) = 2√(4(2)² − 2(2))

f'(2) = 2√12

3 0

3 years ago

A mean equal to 5 cm. A simple random sample of wrist breadths of 40 women has a mean of 5.07

neonofarm [45]

Answer:

The value of the test statistic is $z = 1.34$

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

Test if the mean is equal to 5:

This means that the null hypothesis is $\mu = 5$

A simple random sample of wrist breadths of 40 women has a mean of 5.07 cm. The population standard deviation is 0.33 cm.

This means that $n = 40, X = 5.07, \sigma = 0.33$

Find the value of the test statistic?

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{5.07 - 5}{\frac{0.33}{\sqrt{40}}}$

$z = 1.34$

The value of the test statistic is $z = 1.34$

5 0

2 years ago

I need help please ?

Gekata [30.6K]

◆ Sequence n Series ◆

Hey !!

Check the attachment.
Hope it helps you :)

8 0

2 years ago