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katrin [286]
3 years ago
7

Can someone solve this

Mathematics
1 answer:
Licemer1 [7]3 years ago
3 0

Answer:

14w


Step-by-step explanation:


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In the figure below, one side of the right triangle is a diameter of the semicircle.
olga55 [171]

Answer:

Option (A)

Step-by-step explanation:

One side of the given triangle is a diameter of the semicircle given.

Measure of the diameter = 10 units

Total area of the semicircle = \frac{1}{2}\pi (r^{2})

                                              = \frac{1}{2}\pi (5)^2

                                              = 39.27 square units

Area of the right triangle = \frac{1}{2}(\text{Base})(\text{Height})

                                         = \frac{1}{2}(6)(8)

                                         = 24 square units

Area of the shaded region = Area of the semicircle - Area of the right triangle

                                            = 39.27 - 24

                                            = 15.27 square units

                                            ≈ 15 square units

Therefore, option (A) will be the answer.

4 0
3 years ago
Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi
katrin2010 [14]

Answer:

Test scores of 10.2 or lower are significantly low.

Test scores of 31.4 or higher are significantly high.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 20.8, \sigma = 5.3

Identify the test scores that are significantly low or significantly high.

Significantly low

Z = -2 and lower.

So the significantly low scores are thoses values that are lower or equal than X when Z = -2. So

Z = \frac{X - \mu}{\sigma}

-2 = \frac{X - 20.8}{5.3}

X - 20.8 = -2*5.3

X = 10.2

Test scores of 10.2 or lower are significantly low.

Significantly high

Z = 2 and higher.

So the significantly high scores are thoses values that are higherr or equal than X when Z = 2. So

Z = \frac{X - \mu}{\sigma}

2 = \frac{X - 20.8}{5.3}

X - 20.8 = 2*5.3

X = 31.4

Test scores of 31.4 or higher are significantly high.

3 0
3 years ago
Been trying to get this one answered for months, will make the first one to answer a brainliest :D Please explain how you did it
Nikitich [7]

Answer:

\frac{2}{7}

Step-by-step explanation:

In order to find the slope of a line you must find where the points intersect, use the formula for slope, substitute values, and simplify if needed.

In this case we were already given the points for slope:

P1=(-4,-4) = (x1,y1)

P2=(-2,3)=(x2,y2)

Slope formula:

slope = \frac{y2-y1}{x2-x1}

Now substitute:

\frac{-2--4}{3--4}

Solve using KCC: (Keep, Change, Change)

-2+4=2

3+4=7

=\frac{2}{7}

Because the slope isn't a negative you do not need to simplify the answer.

Hope this helps.

8 0
3 years ago
On a test that has a normal distribution, a score of 49 falls three standard deviations below the mean, and a score of 59 falls
DedPeter [7]

Answer:

Step-by-step explanation:

6 0
3 years ago
Write an inequality that represents 10 less than a 4 times a number more than 10,000
OLga [1]
10-4×>10,000??? I'm sorry Im not good at math
4 0
3 years ago
Read 2 more answers
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