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3 years ago

What is the distance between (-3,7) and (6,1)

Mathematics

1 answer:

klasskru [66]3 years ago

8 0

Answer:

3 $\sqrt{13}$

Step-by-step explanation:

(✿◡‿◡) <--- she wants brainliest

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X/x-3 times x-1/3-x

Tema [17]

X-X^2/ (x-3)^2 try that I’m not 100% sure tho

8 0

3 years ago

4. Which of the following indicates the multiplication property of equality when solving Vz= 5?

tiny-mole [99]

Answer:

D. 21.

Step-by-step explanation:

The general form of the equation of a circle is:

(x - a)^2 + (y - b)^2 = r^2 where r is the radius.

Comparing:

(x + 5)^2 + (y + 7)^2 = 21^2

So r^2 = 21^2

making r = √21^2

= 21.

plz make me brainliest

3 0

3 years ago

A random sample of 84 students at a university showed an average age of 22 years and a sample standard deviation of 3 years. Fin

Debora [2.8K]

Answer:

The margin of error for the 94% confidence interval is 0.6154.

Step-by-step explanation:

The (1 - α)% confidence interval for population mean is:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

The margin of error of this interval is:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

The critical value of z for 94% confidence level is, z = 1.88.

Compute the margin of error for the 94% confidence interval as follows:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

$=1.88\times\frac{3}{\sqrt{84}}\\\\=0.6154$

Thus, the margin of error for the 94% confidence interval is 0.6154.

7 0

3 years ago

There are three children in a family. a friend is told that at least two of them are boys. what is the probability that all thre

Nostrana [21]

It would be 33.333333% Likely to be a boy or a girl.

7 0

3 years ago

Pleeeeease help me out!!!!!

Nataly_w [17]

If you look at the data, you can see that every y value is opposite to the corresponding x- value.

So, equation can be written as

y = [-] x or y=[-1]x

3 0

3 years ago