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2 years ago

If it doesn't give me the perimeter, how do i find x from this? thank you!

Mathematics

1 answer:

Mariulka [41]2 years ago

6 0

The way the angles are labeled tell you that they are all congruent. The two triangles you see here also share the side that joins them. Then by the angle-side-angle postulate, the two triangles are congruent, so x + 23 = 13, or x = -10.

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Question 2

Oliga [24]

Answer:

Step-by-step explanation:

you want the trinomial (x*x - 6x + __ ) to be written as a binomial squared.

So we would need to realize that the constant would be equal to (-6/2)^2 =(-3)^2 = 9

We have completed the square.

f(x) = 4*( x - 3)^2 + 20 is now in Vertex Form

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3 years ago

ASAP. Look at the picture. Answer choices are: A) the spring has no stretch when a force of 1 pound is applied. B) the spring st

Katyanochek1 [597]

Answer:

D) the spring has a length of 1 inch when no force is applied

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3 years ago

Bo paid bills with 1/2 of his paycheck snd put 1/5 of the remainder in savings. The rest of his paycheck he divided equally amon

Lana71 [14]

For college, 1-1/2-1/5 = 3/10. Divided by 3 children, 3/10 /3 = 1/10

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3 years ago

Travel time data is collected on an arterial. With 30 runs, an average travel time of 152 seconds is computed over the 2.0 miles

o-na [289]

Answer:

The 95% confidence bounds is $145.80 < \mu < 158.19$

It was not necessary to make any assumption about the shape of the travel time distribution

Step-by-step explanation:

From the question we are told that

The sample size is n = 30

The sample mean is $\=x = 152$

The standard deviation is $\sigma = 17.3 \ second$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96 * \frac{17.3 }{\sqrt{30} }$

=> $E = 6.19$

Generally 95% confidence bounds is mathematically represented as

$\= x -E < \mu < \=x +E$

=> $152 -6.19 < \mu < 152 -6.19$

=> $145.80 < \mu < 158.19$

This 95% confidence bounds show that there is 95% confidence that the true mean lies within this bound hence there is it was not necessary to make any assumption about the shape of the travel time distribution

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2 years ago

which of th following are characteristics of the reciprocal parent functiona. it has a horizontal asymptote at y=0b. it passes t

Tcecarenko [31]

All of the optiona are characteristics of the reciprocal parent function except option b. (i.e. the reciprocal parent function do not pass through the point (1, 0)

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3 years ago

If it doesn't give me the perimeter, how do i find x from this? thank you!​

If it doesn't give me the perimeter, how do i find x from this? thank you!