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2 years ago

11

Curtis threw darts at a dartboard. 40% of his darts hit the bulls-eye, If 6 darts hit the bulls-eye,how many did not hit the bul

ls-eye.

1 answer:

I am Lyosha [343]2 years ago

8 0

Answer:

its 9

the other ans is scam :))))))

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In the 30-60-90 triangle below, side s has a length of _ and side q has a length of _.

gregori [183]

Answer: F

Step-by-step explanation:

For a 30-60-90 triangle, we know that the hypotenuse is 2x. Since we know the hypotenuse is 10, we can solve for x.

2x=10

x=5

Now that we know x is 5, we can use this to solve for s and q. The side across from 30° is just x. Since we know x, s is 5.

The side across from 60° is x√3. Since we know what x is, we can just plug in. q is 5√3.

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3 years ago

We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of

sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

Sample mean = 8

Sample standard deviation = 2

90% Confidence interval

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729$

Margin of error:

$t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$1.729(\frac{2}{\sqrt{20}} ) = 0.773$

7 0

3 years ago

Find the prime factorization of 72.

barxatty [35]

Answer:

2^3×3^2

and yh

Step-by-step explanation:

2×2×2×3×3

5 0

2 years ago

Read 2 more answers

Write two ratios that are equivalent to 1:1

Zolol [24]

4:4 and 5:5 are <span> two ratios that are equivalent to 1:1</span>

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2 years ago

Heather bought a pair of shoes for$75. She paid an 8.4% sales tax. What is the amount of sales tax she paid?

steposvetlana [31]

Answer: 6.3

Step-by-step explanation:

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2 years ago