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3 years ago

I don't Understand 5 plz someone help me :(

Mathematics

1 answer:

ryzh [129]3 years ago

8 0

What point represent point p after a 90degree counter clockwise turn from the origin.

To solve, draw a line from the origin to point p. Draw a line from the origin that is perpendicular to line OP (origin to p). Make sure the line is in the counterclockwise direction, This will leave you at point ___
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Go down if you still don't understand\/

Point A

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After 3 points have been added to every score in a sample, the mean is found to be M 5 83 and the standard deviation is s 5 8. W

Maurinko [17]

Answer:

Hence the value for the mean is 80 and the standard deviation for the original sample is 8.

Step-by-step explanation:

Mean = 83-3 = 80.

Here the standard deviation didn't change = 8.

5 0

3 years ago

I dont need it anymore

vova2212 [387]

Answer:

I'm sorry but what is the question?

Step-by-step explanation:

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3 years ago

The newborn weights 7 pounds and is 21 inches long. What is the ratio of weight to length?

Nikolay [14]

Answer:

1:3

Step-by-step explanation:

The required ratio will be ,

7:21

= 1 :3

4 0

3 years ago

Read 2 more answers

Please answer the question below. please provide an explanation as well. thanks!

Elena-2011 [213]

Answer:

Step-by-step explanation:

Since S is the midpoint of RT, then RS = ST

RS = RT - ST = (3x + 7) - (x + 7) = 3x + 7 - x - 7 = 2x

so we get that RS = 2x

but since RS = ST, and RS=2x & ST=x+7

then 2x = x + 7

2x-x = 7

x = 7

ST = x+7 = 7+7 = 14

P.S. Hope it makes sense. If you have any questions, feel free to ask them in the comments senction. I'll be happy to help. Have a wonderful day!

7 0

2 years ago

A new television set was recently purchased for the common room in a Residence Hall for $428.00 including tax. If the tax rate i

prohojiy [21]

The price of the television set before taxes is $400

<h3>How to find the price of the television set before taxes.?</h3>

The given parameters are:

Price after tax = $428.00

Tax rate = 7%

The price of the television set before taxes is calculated as:

Price after tax = Price before tax * (1 + tax rate)

This gives

$428.00 = Price before tax * (1 + 7%)

Express the percentage as decimal

$428.00 = Price before tax * (1 + 0.07)

Evaluate the sum

$428.00 = Price before tax * (1.07)

Divide both sides by 1.07

Price before tax = $400

Hence, the price of the television set before taxes is $400