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2 years ago

Math problem:alexa works 40 hours a week if she arns 720 per week how much will she earn in 8 weeks

Mathematics

1 answer:

hammer [34]2 years ago

7 0

Answer:

5,760‬ is your answer

Step-by-step explanation:

You Just multiply 720 by 8

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When subtracting an integer is the

RideAnS [48]

Answer:

I think (A is the answer

Step-by-step explanation:

srry if this is wrong

7 0

3 years ago

HELPPPP What is the volume of the square pyramid? Use Pythagorean’s Theorem to find the height of the pyramid

aalyn [17]

Answer: 4,111.7 mm³

Step-by-step explanation:

You need to use this formula to calculate the volume of the square pyramid:

$V=\frac{s^2h}{3}$

Where "s" is the lenght of any side of the square base and "h" is the height of the pyramid.

Find the height with the Pythagorean Theorem:

$a^2=b^2+c^2$

Where "a" is the hypotenuse and "b" and "c" are the legs of the right triangle. Let be "c" the height of the pyramid.

You can identify in the figure that:

$a=26mm\\\\b=\frac{23mm}{2}=11.5mm\\\\c=h$

Then, you can find the height:

$(26mm)^2=(11.5mm)^2+h^2\\\\h=\sqrt{(26mm)^2-(11.5mm)^2}\\\\h=23.318mm$

Then, knowing that:

$s=23mm\\h=23.318mm$

You can calculate the volume:

$V=\frac{(23mm)^2(23.318mm)}{3}=4,111.7mm^3$

3 0

3 years ago

Which of the following is NOT a measure ofâ center? Choose the correct answer below.

irina [24]

Answer:

Option B) census

Step-by-step explanation:

We have to find the measure of center.

The measure of center is also known as the measure of central tendency.

The measure of central tendency for a data is given by

Mean
Median
Mode

It help us to identify the central position of data in different ways.

Thus, out of the given option census is not a measure of center.

Option B) census

4 0

3 years ago

Which shows the expression below in simplified form?

statuscvo [17]

Answer:

B. 9x10^4

Step-by-step explanation:

$\frac{4.5 \times {10}^{8} }{5 \times {10}^{3} } \\ = 0.9 \times {10}^{8 - 3} \\ = 0.9 \times {10}^{5} \\ = 9 \times {10}^{4}$

5 0

3 years ago

Sales tax is 7% what is the amount of sales tax you would pay this bill

AleksAgata [21]

% means per 100

so when figuring out percents it's good to use 100

on $100 7% would mean $7

on $50 7% would mean $3.5

in $200 7% would mean $14

6 0

2 years ago