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3 years ago

What is the value of x? (giving brainliest and thanks to all!)

Mathematics

1 answer:

andrezito [222]3 years ago

3 0

Answer:

x = 12

Step-by-step explanation:

Given a line parallel to a side of the triangle and it intersects the other 2 sides then it divides those sides proportionally, that is

$\frac{x}{24}$ = $\frac{5}{10}$ ( cross- multiply )

10x = 120 ( divide both sides by 10 )

x = 12

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X less then or equal to -1

babunello [35]

Answer:

x ≤ -1

Step-by-step explanation:

I hope this helped!

7 0

4 years ago

Read 2 more answers

Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork.Who earns more money per hour? How

Fantom [35]

Answer:

Danielle earns $1.20 more than Mackenzie (per hour)

Step-by-step explanation:

To find out how much money per hour each person earns, you would divide the earinings by the number of hours;

Danielle: $36.80/4 = $9.20 per hour

MackKenzie: $50.40/6 = $8.40 per hour

To find out how much extra Danielle earns, you would subtract 8.40 from 9.20;

9.40 - 8.20 = $1.20

Thus, Danielle earns $1.20 more than Mackenzie per hour.

6 0

3 years ago

PLEASE help I will mark you BRAINLIEST!!! <br>

koban [17]

Answer:

Use shell method

And chose the cross section perpendicular to the x-axis

8 0

3 years ago

2x – 5x + 16 = -3(x – 6)

inessss [21]

Answer:

16=18

Step-by-step explanation:

2x-5x+16

-3x+16

-3(x-6)

-3x+18

-3x+16+-3x+18

16=18

-they do not share the same answer

and if you where to keep going

18-16=2

0=2

-so again not equal

hope that helps

7 0

3 years ago

Read 2 more answers

A credit card company is about to send out a mailing to test the market for a new credit card. From that sample, they want to es

Sergeeva-Olga [200]

Answer:

$n=\frac{0.005(1-0.005)}{(\frac{0.001}{1.96})^2}=19111.96$

And rounded up we have that n=19112

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by: