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3 years ago

15

PLS AWNSER FAST I WILL GIVE BRAILIEST

1 answer:

pav-90 [236]3 years ago

3 0

Answer: I believe it's c.

Step-by-step explanation:

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If vx = wz = 40 cm and m

dybincka [34]

Answer:

I am unable to solve this problem w/o any other given variables.

*Post a picture of the actual problem, or provide more numeric responses for variables so that I can solve.

6 0

3 years ago

A salesman’s commission on a 150,000 sale is 3,000. What percent is commission

Tasya [4]

Okay, so we need to make a proportion:

$\frac{3000}{150000}$ $\frac{x}{100}$

We multiply:

3000 x 100 = 300,000

Then we divide:

300,000 / 150,000 = 2

So, the answer would be 2%

I hope this helps! :)

4 0

3 years ago

M is the midpoint of RS. R has coordinates (-2,-3) and M has coordinates (1,0). Find the coordinates of S.

Marta_Voda [28]

Answer:

$(4,3)$

Step-by-step explanation:

Given

$R = (-2,-3)$

$M = (1,0)$

Required

Determine the coordinates of S

Midpoint is calculated as:

$M(x,y) = \frac{1}{2}(x_1 +x_2,y_1+y_2)$

Where:

$(x,y) = (1,0)$

$(x_1,y_1) = (-2,-3)$

Substitute these values in the above formula:

$(1,0) = \frac{1}{2}(-2 + x_2,-3+y_2)$

Multiply through by 2

$2 * (1,0) = 2 * \frac{1}{2}(-2 + x_2,-3+y_2)$

$(2,0) = (-2 + x_2,-3+y_2)$

By direct comparison:

$2 = -2 + x_2$ and $0 = -3 + y_2$

Solving for x2

$2 = -2 + x_2$

$x_2 = 2 + 2$

$x_2 = 4$

Solving for y2

$0 = -3 + y_2$

$y_2 = 0 + 3$

$y_2 = 3$

Hence, the coordinates of S is: $(4,3)$

5 0

3 years ago

The number of subscribers y to a newspaper after t years is shown by the equation below: y = 75(0.95)t Which conclusion is corre

kodGreya [7K]

Answer:

It decreased by 5% every year

Step-by-step explanation:

When t increases by 1, the number of subscribers is multiplied by another factor of 0.95, making the new value 5% less than the previous one.

The number of subscribers decreased by 5% every year.

5 0

3 years ago

Read 2 more answers

A simple random sample of 125 SAT scores has a mean of 1522. Assume that SAT scores have a population standard deviation of 335.

Fed [463]

Answer:

$1463.3\:$

Step-by-step explanation:

Since the population standard deviation $\sigma$ , is known, we use the z confidence interval for the mean.

This is given by:

$\bar X-z_{\frac{\alpha}{2} }(\frac{\sigma}{\sqrt{n} } )\:$

For a 95% confidence interval we use $z=1.96$ .

It was also given that: $n=125$ , $\bar X=1522$ and $\sigma=335$

Let us substitute the values to get:

$1522-1.96(\frac{335}{\sqrt{125} } )\:$

$1463.3\:$

<u>Interpretation:</u>

We can say with 95% confidence that the interval between 1463.3 and 1580.7 SAT scores contains the population mean based on the sample 125 SAT scores.

7 0

3 years ago