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3 years ago

In the drawing below, line n is a transversal that intersects two parallel lines. What is the measure of Angle 4?

Mathematics

1 answer:

4vir4ik [10]3 years ago

4 0

Answer:

140°

Step-by-step explanation:

<3 = 40 because they are vertical angles

<3 +<4 = 180 because they are same side interior angles

40 + <4 = 180

Subtract 40 from each side

40-40 + <4 = 180-40

<4 = 140

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Mileage tests are conducted for a particular model of automobile. If a 98% confidence interval with a margin of error of 1 mile

Llana [10]

Answer: 37

Step-by-step explanation:

Given : Significance level : $\alpha:1-0.98=0.02$

Critical value : $z_{\alpha/2}=z_{0.01}=2.33$

margin of error : E= 1 mile per gallon

Population standard deviation: $\sigma=2.6$ miles per gallon.

We know that when the population standard deviation is known then the formula to find the sample size is given by :

$n=(\dfrac{z_{\alpha/2}\times \sigma}{E})^2$

$n=(\dfrac{(2.33)\times 2.6}{1})^2=36.699364\approx37$ [Round to the next whole number.]

Hence, the required number of automobiles should be used in the test = 37

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3 years ago

Solve. -1/3b = 9<br> A.-3<br> B.3<br> C.-27<br> D.27

STALIN [3.7K]

Ok so lets plug in a first -1/3(-3) would equal 9 a is the accurate answer

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3 years ago

Read 2 more answers

What is the midpoints of a segment whose endpoints are (-3, 8) and (7, -2) ?

Sidana [21]

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harina [27]

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