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3 years ago

Find the volume in ft cubed

Mathematics

1 answer:

umka2103 [35]3 years ago

7 0

Answer:

7x6x2= 84 ft cubed

Step-by-step explanation:

multiply length by width by height

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Please help me thank you

Yanka [14]

Answer:

TQ = 83.5

Step-by-step explanation:

11/54 = 17/TQ

11TQ = 918

TQ = 918/11 = 83.45

8 0

3 years ago

454 rounded to the nearest ten

Bezzdna [24]

Hey!

454 rounded to the nearest ten is: 450

This is because 4 is less than five, which is why we would round it to 50.

3 0

3 years ago

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Find the simple interest for :<br> $668,5%, 2 years

Mkey [24]

Answer: 2 years

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is z? -0.25z = -1.25

lora16 [44]

It is (positive) five. divide -1.25 by -0.25.

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3 years ago

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The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who w

dimulka [17.4K]

Answer:

99% CI:

$-4.637\leq\mu_v-\mu_o\leq 3.737$

Step-by-step explanation:

We have to calculate a 99%CI for the difference of means for the vegan and the omnivore.

First, we have to estimate the standard deviation

$s_{Md}=\sqrt{\frac{2MSE}{n_h}}$

The MSE can be calculated as

$MSE=\frac{(SSE_1+SSE_2)}{df} =\frac{(n_1s_1)^2+(n_2*s_2)^2}{n_1+n_2-2}\\\\MSE=\frac{(85*1.05)^2+(96*1.20)^2}{85+96-2}=\frac{7965.56+13272.04}{179} =118.65$

The weighted sample size nh can be calculated as

$n_h=\frac{2}{1/n_1+1/n_2}=\frac{2}{1/85+1/96}=\frac{2}{0.0222} =90.16$

The standard deviation then becomes

$s_{Md}=\sqrt{\frac{2MSE}{n_h}}=\sqrt{\frac{2*118.65}{90.16}}=\sqrt{2.632} =1.623$

The z-value for a 99% confidence interval is z=2.58.

The difference between means is

$\Delta M=M_v-M_o=5.10-5.55=-0.45$

Then the confidence interval can be constructed as

$\Delta M-z*s_{Md}\leq\mu_v-\mu_o\leq \Delta M+z*s_{Md}\\\\ -0.45-2.58*1.623\leq\mu_v-\mu_o\leq -0.450+2.58*1.623\\\\-0.450-4.187\leq\mu_v-\mu_o\leq-0.450+4.187\\\\-4.637\leq\mu_v-\mu_o\leq 3.737$

8 0

3 years ago