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2 years ago

(SAT Prep) Find the value of x

Mathematics

2 answers:

Blizzard [7]2 years ago

7 0

Answer:

120 degrees

Step-by-step explanation:

I'm Big Brain

nadezda [96]2 years ago

6 0

Answer:

x=120°

Step-by-step explanation:

angles on parallel lines ,there's an imaginary parallel line at x.

70 and 50 alternate respectively.

so x=50+70

x=120

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3 years ago

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What is the congruence correspondence, if any, that will prove the given triangles congruent?

alina1380 [7]

Answer:

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Step-by-step explanation:

the two triangles have two congruent sides and one congruent angle

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2 years ago

Steve is painting the ceiling of a room. the ceiling is in the shape of a rectangle. he has enough paint to cover 198 square fee

Katena32 [7]

Answer:

Width = 9ft.

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Step-by-step explanation:

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1 year ago

The scheduled arrival time for a daily flight from Boston to New York is 9:35 am. Historical data show that the arrival time fol

Lady_Fox [76]

Answer:

The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean is:

$M = \frac{a+b}{2}$

The standard deviation is:

$S = \sqrt{\frac{(b-a)^{2}}{12}}$

Arrival time of 9:18 am and a late arrival time of 9:41 am.

9:41 is 23 minutes from 9:18. So the time is uniformily distributed between 0 and 23 minutes, so a = 0, b = 23.

Mean:

$M = \frac{a+b}{2} = \frac{0+23}{2} = 11.5$

Standard deviation:

$S = \sqrt{\frac{(b-a)^{2}}{12}} = \sqrt{\frac{(23 - 0)^{2}}{12}} = 6.64$

The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

8 0

2 years ago

Sherry is driving 390 miles to visit The gateway arch in St. Louis. She drives at an average rate of 65 miles per hour. Explain

grandymaker [24]

Answer:

t = 6 s

Step-by-step explanation:

Given that,

Sherry is driving 390 miles to visit The gateway arch in St. Louis.

She drives at an average rate of 65 miles per hour.

We need to find the amount of time it will take Sherry to get to the arch. Let the time is t.

Speed = distance/time

$t=\dfrac{d}{v}\\\\t=\dfrac{390}{65}\\\\t=6\ h$

Hence, it will take 6 hours to get to the arch.

8 0

2 years ago