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2 years ago

What is y if -5-(15y-1)=2(7y-16)-y

Mathematics

1 answer:

MrRissso [65]2 years ago

3 0

Answer:-19=33y

Step-by-step explanation:

-5-15y-1=14y-32y

-19-15y=18y

18y+15y

-19=33y

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A survey of an urban university (population of 25,450) showed that 883 of 1,112 students sampled supported a fee increase to fun

quester [9]

Answer:

The confidence interval for the proportion of students supporting the fee increase

( 0.77024, 0.81776)

Step-by-step explanation:

Explanation:

Given data a survey of an urban university (population of 25,450) showed that 883 of 1,112 students sampled supported a fee increase to fund improvements to the student recreation center.

Given sample size 'n' = 1112

Sample proportion 'p' = $\frac{883}{1112} = 0.7940$

q = 1 - p = 1- 0.7940 = 0.206

The 95% level of confidence intervals

The confidence interval for the proportion of students supporting the fee increase

$(p-z_{\alpha } \sqrt{\frac{pq}{n} } ,p + z_{\alpha } \sqrt{\frac{pq}{n} } )$

The Z-score at 95% level of significance =1.96

$(0.7940-1.96\sqrt{\frac{0.7940 X 0.206}{1112} } ,0.7940 + 1.96 \sqrt{\frac{0.7940 X 0.206}{1112} } )$

(0.7940-0.02376 , 0.7940+0.02376)

( 0.77024, 0.81776)

Conclusion:-

The confidence interval for the proportion of students supporting the fee increase

( 0.77024, 0.81776)

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3 years ago

Which situation would be represented by zero? An altitude of 37 feet. An altitude of 7 meters below sea level. An altitude of 8

kirza4 [7]

Answer: an altitude at sea level

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3 years ago

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A doctor has an annual income of $152,125. The income tax that doctor has to pay is 6%. What is the amount of income tax in doll

atroni [7]

9514 1404 393

Answer:

$9,127.50

Step-by-step explanation:

6% of $152,125 is ...

0.06 × $152,125 = $9,127.50

The doctor has to pay $9,127.50 in income tax.

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3 years ago

The surface area (SA) of a cube with a as the length of each of its sides is given by the formula . If the surface area is known

nignag [31]

Answer:

Step-by-step explanation:

1 surface area of the cube is s*s.

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Area/6 = s^2

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3 years ago

Need help with this question

Elenna [48]

The sum of adjacent angles on a straight line would be 180°.

Since x is on a straight line,what we need to do is to deduct the remaining two angles,here's what the equation would be like:

180°-90°-30°
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Thus,x=60°

hope it helps!

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2 years ago

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