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3 years ago

Write the equation of a line that goes through point (4,0) and has an undefined slope

Mathematics

2 answers:

lesya [120]3 years ago

8 0

Answer:

x = 4

Step-by-step explanation:

i just took the test

Mekhanik [1.2K]3 years ago

5 0

Answer:

Step-by-step explanation:

A line with undefined slope is a vertical line.

An equation of a vertical line: x = a (a - real number).

Each point on a line x = a has coordinates (a, b) (b - any real number).

We have the point (4, 0) → x = 4

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Find the measure of x and y (NO LINKS OR REPORT)

Alchen [17]

Answer:

y= 35

x=55

Step-by-step explanation:

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2 years ago

An artist wishes to make a painting in the shape of a golden rectangle, based on the theory that this shape is the most pleasing

Arisa [49]

C because 9 x 12 is 108 and so it’s c but I’m sorry if this is wrong

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3 years ago

What is 214729.08 rounded to nearest thousand

nata0808 [166]

Hello!!

214,729.08 rounded to nearest thousand is 215,000.

And, 214,729.08 rounded to nearest thousandths (3 decimals) is 214,729.080.

Good luck :)

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3 years ago

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

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

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3 years ago

A test to detect an infection gives a positive result 98% of the time if a person is infected. It is 97% accurate for people who

Rama09 [41]

If the test gives a positive result for an infected person 98% of the time, that means that 2% of the time, it gives a negative result for an infected person, which would be a false negative.

If the test is 97% accurate for non-infected people, that means that it gives a negative result 97% of the time. So a positive result will be given 3% of the time for non-infected people, which is a false positive.

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3 years ago