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2 years ago

The diagram shows two congruent equilateral triangles whose overlap is a hexagon.

Mathematics

2 answers:

podryga [215]2 years ago

7 0

Answer:

58 or 68

Step-by-step explanation:

Anton [14]2 years ago

3 0

Answer:

Can u post a picture of the diagram? It would be more helpful!

Step-by-step explanation:

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Area of Rectangles and Squares.<br> Please show the work, I need help

USPshnik [31]

Here, I think I can help you out:

1. 21 ÷ 3

= 7

Therefore, the length is 7cm².

2. 35 ÷ 7

= 5cm²

- And so on. Simply divide the area by the length of the side given; you can answer up to question six using this strategy.

7. All sides of a square are the same length.

7 x 7

= 49cm²

9. 2 x 3.5

= 7m²

- The formula to find the area of a square/rectangle is length x width. Just multiply the given lengths for the answers :)

7 0

2 years ago

Read 2 more answers

In a certain city of several million people, 7.7% of the adults are unemployed. If a random sample of 300 adults in this city is

Lilit [14]

Answer: 0.2643

Step-by-step explanation:

Given : The proportion of adults are unemployed : p=0.077

The sample size = 300

By suing normal approximation to the binomial , we have

$\mu=np=300\times0.077=23.1$

$\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62$

Now, using formula $z=\dfrac{x-\mu}{\sigma}$ , the z-value corresponding to 26 will be :-

$z=\dfrac{26-23.1}{4.62}\approx0.63$

Using standard distribution table for z , we have

P-value= $P(z\geq0.63)=1-P(z$

$=1-0.7356527=0.2643473\approx0.2643$

Hence, the probability that at least 26 in the sample are unemployed =0.2643

6 0

2 years ago

Help with one last math question <br> thank u

Vitek1552 [10]

It has to be the last one, D. I did it over 3 times to make sure.

4 0

2 years ago

??????????????????????????????????????(

ruslelena [56]

Answer:

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Step-by-step explanation:

3 0

3 years ago

Match each of the following with the equations below. Write the letter of the appropriate equation in the column beside each ite

Mila [183]

Answer: C

Step-by-step explanation:

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3 years ago