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MrRa [10]
3 years ago
13

Subtract -1/2n - (-1/2n)

Mathematics
1 answer:
9966 [12]3 years ago
8 0
Answer: 0
Explanation:
-1/2n -(-1/2n)
= -1/2n + 1/2n
= 0
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What is the approximate area of the shaded sector in the circle shown below?
Strike441 [17]

Answer:

Correct option is B.

Step-by-step explanation:

Given the radius of circle and the angle in sector we have to find the area of shaded region i.e minor sector.

Radius=r=16 in.

Angle=\theta=110^{\circ}

Area of sector=}\frac{\theta}{360}\times\pi r^2

                      =\frac{110}{360}\times\frac{22}{7}\times(16)^2

                      =\frac{11}{36}\times \frac{22}{7}\times 16\times 16=245.841=246(approx.)

∴ Area of sector is 246in^2

Correct option is B.

4 0
3 years ago
Which of these graphs is the solution set for the equation y = -4?
ASHA 777 [7]

Answer:

= 4

Step-by-step explanation:

There ar

8 0
2 years ago
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Find the mode and range of each data set:<br><br> C) 86.4,87.2,95.7,96.4,88.1,94.9,98.5,94.8
den301095 [7]
Mean: 92.75

Median: <span>94.85

Mode: </span>86.4, 87.2, 95.7, 96.4, 88.1, 94.9, 98.5, 94.8

8 0
3 years ago
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The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed
NNADVOKAT [17]

Correct clear question is;

The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? H_0: μ = 5 H_1: μ ≠ 5

Is the hypothesis test left-tailed, right tailed, or two tailed? A Left tailed B Right tailed C Two tailed

What parameter is being used? A population proportion B population mean C standard deviation

Answer:

A) C - Two tailed hypothesis

B) B - Population mean

Step-by-step explanation:

We are given the hypotheses to be;. Null Hypothesis; H_0: μ = 5

Alternative hypothesis; H_1: μ ≠ 5

From the alternative hypothesis, we can see that the critical area of distribution of the parameter being tested could either be less than 5 or greater than 5 due to the not equal to sign. This means it could either be left tailed or right tailed. Thus, it is a two tailed hypothesis.

From the hypothesis, we see that the symbol μ is being used.

In statistics, μ is generally used as a symbol to denote population mean.

Thus, parameter being used/tested is population mean

4 0
3 years ago
BRAINLIESTTTTTTTTTTTT!! :)
skad [1K]
Your answer here would be letter A because for each year it is multiplied by 5 and so year 6 was 31,250 and 31,250 * 5 is 156,250


Have A Good Day :)
3 0
3 years ago
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