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nirvana33 [79]
3 years ago
11

Will choose brainliest and 12 points

Mathematics
1 answer:
sveta [45]3 years ago
7 0
The answer is equation 2 as it expands to 0=0
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Which of the following fractions is smaller than<br> 1/2
Harman [31]

the answer is C: 3/7

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

7 0
3 years ago
The height of a triangle is 8cm more than the base. If the area is 90cm^2, find the base and the height
Aleonysh [2.5K]
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2 years ago
Logan made a treasure map he treasure is 25 cm away from his location if each 1 cm on the scale drawing equals 5 m then how far
Doss [256]
Logan is 125 meters away from the treasure.


Also, this question seems like an elementary school question, not a high school question, so why does it say that you are in high school?
8 0
3 years ago
Angle A and angle B are supplementary. The measure of angle B is 82.5.
stealth61 [152]

Answer:

Angle A = 97.5º

Step-by-step explanation:

Supplmentary means 2 angles that equal 180º. So we already have 1 angle, so now all we have to do is subtract 82.5 from 180.

180 - 82.5 = 97.5

5 0
3 years ago
Read 2 more answers
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