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lana66690 [7]
3 years ago
5

How would you know if these 2 triangles are similar or not

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0

Answer: well they are both 47 degrees

Step-by-step explanation:

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Write an equation of the line in point-slope form that passes through the given points (-3,2) (5,5)
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I think it is: y=0.375x+3.125

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Find b

(5)=0.375(5)+b
(5)=1.875+b
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How to write 899,501 in expanded form
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800,000+90,000+9,000+500+1
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What is the common denominator of 2/9 and 2/3
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Answer:

9

Step-by-step explanation:

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A survey of 1 comma 558 randomly selected adults showed that 522 of them have heard of a new electronic reader. The accompanying
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Answer with explanation:

Let  p be the proportion of adults have heard of the new electronic reader.

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Then , the set of hypothesis will be :-

H_0: p=0.38\\\\H_a:p\neq0.38

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Also, it is given that the sample size : n=1558

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So the sample proportion for adults have heard of the new electronic reader : \hat{p}=\dfrac{522}{1558}\approx0.34



The test statistic for proportion is given by :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\\Rightarrow\ z=\dfrac{0.34-0.38}{\sqrt{\dfrac{0.38(1-0.38)}{1558}}}\\\\\\\Rightarrow\ z=-3.25279036541\approx-3.25

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andreev551 [17]

Answer:

Step-by-step explanation:

In each case, draw the right triangle which produces the inverse trig value. That is, label the two sides as needed, and calculate the third side.

It should be clear that

tan(sin^{-1} x/4) = x/\sqrt{16-x^{2} }

sin(tan^{-1} x/4) = x/\sqrt{16+x^{2} }

sin(2α) = 2 sinα cosα

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1/2 sin(2sin^{-1} x/4) = (1/2)(x/4) * x/\sqrt{16-x^2} = x^{2} /(8\sqrt{16-x^2})

See what you can do with the others.

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