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kotykmax [81]
3 years ago
12

Determine whether a triangle with the given side lengths is a right triangle.

Mathematics
1 answer:
12345 [234]3 years ago
3 0

Answer:

See answer below.

Step-by-step explanation:

This is true for all right triangle a² + b² = c²    were c = the largest number

9, 12, 15           A right triangle

21, 28, 35       A right triangle

9, 13, 16          Not a right triangle

10, 11, 15          Not a right triangle

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Answer:

there is a total of 20 students in the class because 60% of 20 is 12

Step-by-step explanation:

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HELP ASAP. BRAINLIST IF YOU ANSWERED IT RIGHT
S_A_V [24]

Answer:

The answer is D.

Step-by-step explanation:

In similarity, the triangles have the same angles but different length of sides.

(Correct me if I am wrong)

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3 years ago
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An automobile manufacturer has given its car a 46.7 miles/gallon (MPG) rating. An independent testing firm has been contracted t
erastova [34]

Answer:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

Step-by-step explanation:

Information given

\bar X=46.5 represent the mean

\sigma=1.1 represent the population standard deviation

n=150 sample size  

\mu_o =46.7 represent the value to verify

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean for this case is 46.7, the system of hypothesis would be:  

Null hypothesis:\mu = 46.7  

Alternative hypothesis:\mu \neq 46.7  

Since we know the population deviation the statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

Replacing we got:

z=\frac{46.5-46.7}{\frac{1.1}{\sqrt{150}}}=-2.23    

The p value would be given by:

p_v =2*P(z  

For this case since th p value is lower than the significance level of0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean for this case is significantly different from 46.7 MPG

7 0
3 years ago
Find the slope and the y-intercept of y=9x-2
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Answer:

The Slope is 9 and the y-intercept is -2

Step-by-step explanation:

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3 years ago
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Help!! I don't know what to do with the square root
Karo-lina-s [1.5K]

Answer:

\sqrt{10}

Step-by-step explanation:

g(4) = \sqrt{(4)^2 - (4) - 2}  \\\\g(4) = \sqrt{16 - 4 - 2}  \\\\g(4) = \sqrt{16 - 6} \\\\g(4) = \sqrt{10}

You can't simplify this anymore

Hope this helps! : )

7 0
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