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Ratling [72]
3 years ago
12

R+(-5r) I really need a step by step answer

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
5 0

Answer:

+×- =-

r-5r

-4r is the best answer

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University officials say that at least 70% of the voting student population supports a fee increase. If the 95% confidence inter
baherus [9]

Answer:

The interval estimate is above 70%, so infer that it will be supported.

Step-by-step explanation:

The evidence that 95% confidence interval estimating the proportion of students supporting the fee increase is [0.75, 0.85] supports university officials' claim that at least 70% of the voting student population supports a fee increase.

Therefore we can infer that a fee increase will be supported.

4 0
3 years ago
In the xy-coordinate plane, a line has a slope of −5/3. If the line crosses the y-axis at (0, b), at what point does it cross th
KatRina [158]

Answer:

(\frac{3}{5} b, 0 )

Step-by-step explanation:

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Here m = - \frac{5}{3} and b = b , thus

y= - \frac{5}{3} x + b ← equation of line

The line crosses the x- axis when y = 0, substitute y = 0 into equation and solve for x, that is

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- 5x + 3b = 0 ( subtract 3b from both sides )

- 5x = - 3b ( divide both sides by - 5 )

x = \frac{3}{5} b , thus

x- intercept = ( \frac{3}{5} b, 0 )

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2 years ago
At the rate of 1 hour, 18 minutes, and 27 seconds, how long would it take a competitor to complete a 30 mile race
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