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Nina [5.8K]
2 years ago
6

A triangle has angle measurements of 390, 390, and 102°. What kind of triangle is it?

Mathematics
1 answer:
Pie2 years ago
4 0

Answer:

a triangle cannot have these angles

Step-by-step explanation:

sum of all interior angles of a triangle must be 180. I think you might have made a mistake in the question.

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-4x -7 - 3x + 4 = 25
zimovet [89]

Answer:

x=-4

Step-by-step explanation:

-4x -7 - 3x + 4 = 25

-7x=25-4+7

x=-28/7

x=-4

7 0
3 years ago
Read 2 more answers
Choose like terms:<br><br> 3x, y, 2x
Tresset [83]
3x and 2x are alike terms, as they have the same variable
4 0
3 years ago
The Genetics &amp; IVF Institute conducted a clinical trial of the YSORT method designed to increase the probability of conceivi
Reika [66]

Answer: The test statistic needed to test this claim= 10.92

Step-by-step explanation:

We know that the probability of giving birth to a boy : p= 0.5

i..e The population proportion of giving birth to a boy =  0.5

As per given , we have

Null hypothesis : H_0: p\leq0.5

Alternative hypothesis :  H_a: p>0.5

Since H_a is right-tailed , so the hypothesis test is a right-tailed z-test.

Also, it is given that , the sample size : n= 291

Sample proportion: \hat{p}=\dfrac{239}{291}\approx0.82

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}} , where n is sample size ,  \hat{p} is sample proportion and p is the population proportion.

\Rightarrow\ z=\dfrac{0.82-0.5}{\sqrt{\dfrac{0.5(1-0.5)}{291}}}\approx10.92

i.e. the test statistic needed to test this claim= 10.92

Critical value ( one-tailed) for  0.01 significance level = z_{0.01}=2.326

Decision : Since Test statistic value (10.92)> Critical value (2.326), so we reject the null hypothesis .

[When test statistic value is greater than the critical value , then we reject the null hypothesis.]

Thus , we concluded that we have enough evidence at 0.01 significance level to support the claim that the YSORT method is effective in increasing the likelihood that a baby will be a boy.

7 0
3 years ago
The lot is 48 feet wide.<br> The dividers are each 2 feet wide.
ivann1987 [24]
The answer is 24 bc 48 divided by 2 equals 24
7 0
2 years ago
Find the x and y value.
BARSIC [14]

Answer:

x= 80

y= 77

180-23=157

80+77=157

157+23=180

6 0
2 years ago
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