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4 years ago

How many tens arein 290

Mathematics

1 answer:

coldgirl [10]4 years ago

8 0

There are 29 tens because when you do 10 times 29, you get 290.

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A cylinder has a diameter of 12 and height of 12. the volume of the cylinder is:

bezimeni [28]

D which means you add 12 plus 12

7 0

3 years ago

Find the measure of angle A

kow [346]

Answer:

A=45

Step-by-step explanation:

If you take a pencil and put it in the middle of the line it looks like it could be half of the other side

180-45=135

8 0

3 years ago

Examine this system of equations. Which numbers can be multiplied by each equation so that when the two equations are added toge

podryga [215]

Answer:

18 times the first equation and 8 times the second equation

Step-by-step explanation:

we have

$\frac{1}{4}x-\frac{1}{6}y=5$ ------> first equation

$\frac{4}{5}x+\frac{3}{8}y=10$ ------> second equation

step 1

Multiply the second equation by 8 both sides to remove the fraction in the variable y

$8(\frac{4}{5}x+\frac{3}{8}y)=10(8)$

$\frac{32}{5}x+3y=80$

step 2

Multiply the first equation by 18 both sides to obtain the coefficient -3 in the variable y

$18(\frac{1}{4}x-\frac{1}{6}y)=5(18)$

$\frac{18}{4}x-3y=90$

step 3

Adds the new equation 1 and equation 2

$\frac{18}{4}x-3y=90\\\\ \frac{32}{5}x+3y=80\\ -------$

The y-term is eliminated

therefore

The answer is

18 times the first equation and 8 times the second equation

3 0

4 years ago

Oregon State University is interested in determining the average amount of paper, in sheets, that is recycled each month. In pre

Juliette [100K]

Answer:

The test statistic is $t = 2.79$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 59.3$

The sample size is $n = 79$

The sample mean is $\= x = 62.4$

The standard deviation is $\sigma = 9.86$

Generally the test statistics is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{ \sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 62.2 - 59.3 }{ \frac{ 9.86}{ \sqrt{ 79} } }$

$t = 2.79$

4 0

4 years ago

What is the image of o (-4, -3) after two reflections first across line y=-5 then across line x=1

Finger [1]

Answer:

it should be (6,-7)

Test it on a 4 quadrant graph yourself if you do not have the same numbers.

8 0

3 years ago