3 years ago

Please answer the question in the picture

1 answer:

3 0

rotational symmetry is 3 as it fits into itself three times. And yes it does tessellate because the angles divide evenly to 360 degrees

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MATH HELP!!!!!!!!!!!!!!1

torisob [31]

Answer:

n = 18

Step-by-step explanation:

when you are multiplying, you add the exponents. 2 + x = 20. so by using subtraction we find that x = 18.

5 0

3 years ago

What is the square root of -1?

asambeis [7]

Answer:

The answer would be 1, whenever you square a negative number you should just input it as positive. The answer would be the same.

Step-by-step explanation:

4 0

3 years ago

The difference of twice a number and 2 is at most 22

Zarrin [17]

Nice fact I guess

I don’t know

4 0

2 years ago

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. Find the probability that a randomly s

GaryK [48]

Answer:

The bill size can be considered usual.

Step-by-step explanation:

Mean (μ) = $108.43

Standard deviation (σ) = $36.98

Now, consider the distribution to be normal distribution :

$P(Z=\frac{X-\mu}{\sigma}>\frac{a-\mu}{\sigma})=P(Z>\frac{173-108.43}{36.98})\\\\\implies P(Z>1.75)$

Now, finding values of z-score from the table. We get,

P(Z > 1.75) = 0.9599

⇒ 95.99%

So, only 4.01 % of the people in the city wastes water.

Hence, the bill size can be considered usual.

6 0

3 years ago

Read 2 more answers

Solve the equation below<img src="https://tex.z-dn.net/?f=%5Csqrt%5B5%5D%7B27%28x-2%29%7D%3D3" id="TexFormula1" title="\sqrt[5]{

Mariana [72]

Answer:

x = 11

Step-by-step explanation:

Raising both sides to the fifth power, we get:

27(x - 2) = 3⁵

x - 2 = 3⁵ / 27

x - 2 = 3⁵ / 3³

x - 2 = 3⁽⁵⁻³⁾ = 3² = 9

x = 11

8 0

3 years ago