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Tatiana [17]
3 years ago
10

8. What is the arc length, rounded to the nearest hundredth, of a semicircle with radius 5

Mathematics
1 answer:
abruzzese [7]3 years ago
4 0

Answer: D                                                                                                                   Step-by-step explanation:  

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The range of y= sin x is
kolezko [41]

Given:

y = sinx

Required:

To find the range.

Explanation:

The graph of the sine function is as follows:

We can observe from the graph that the values of y lie between -1 to 1.

So the range of the sinx function is [-1, 1].

Final Answer:

The range of sinx function = [-1, 1].

5 0
1 year ago
In a national survey of 1987 adults, 1570 responded that lack of respect and courtesy in American society is a serious problem,
Alik [6]
<h2>Answer with explanation:</h2>

As per given , we  have

H_0: p\leq\dfrac{3}{4}\\\\H_a: p>\dfrac{3}{4}

Since , alternative hypothesis is right tailed, so the test is a right tailed test.

n= 1987

Proportion of adults believe that rudeness is a worsening problem : p=\dfrac{1257}{1987}\approx 0.6326

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

z=\dfrac{ 0.6326-0.75}{\sqrt{\dfrac{0.75(1-0.75)}{1987}}}=-12.09

(since , the normal curve takes values of z from -7 to 7, so we use critical value to draw conclusion.)

The critical value for a significance level of 0.005= 1.645

Since , absolute test statistic value (12.09) is greater than the critical value (1.645), it means there is statistical significance and so we reject the null hypothesis.

3 0
3 years ago
I don’t know the answer
shutvik [7]

Answer:

HJ is 8

JE is 4

Step-by-step explanation:

Nice song in the other tab by the way:)

7 0
3 years ago
Thomas needs at least 8 apples to make an apple pie. He has 3 apples. If x represents the number of apples Thomas still needs, w
alex41 [277]
3x>=8 
It should be  
Three is less than or equal to eight
5 0
3 years ago
Read 2 more answers
A customer bought 2 small pizzas that cost $5.95 each. How much was her change from $15.00?
Lubov Fominskaja [6]

Answer:

Her change was $3.10

Step-by-step explanation:

One small pizza costs $5.95 each. 2 pizzas equal $11.90. $15.00 minus $11.90 equals $3.10.

3 0
3 years ago
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