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Archy [21]
3 years ago
5

Mike ride his bike with a constant speed of 14 mph how long will it take to travel a distance of 21 miles.

Mathematics
1 answer:
Orlov [11]3 years ago
8 0

Answer:

1.5 hours

Step-by-step explanation:

Calculate speed using

time = \frac{distance}{speed} = \frac{21}{14} = 1.5 hours or 1 hour 30 mins

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ANOTHER TEST QUESTION! HELP ME! <br><br><br>Find the link of k _____
Alecsey [184]

Answer: Try 21

Step-by-step explanation:

8 0
3 years ago
a survey of an urban university (population of 25,450) showed that 750 of 1,100 students sampled attended a home football game d
DiKsa [7]

The confidence interval for the proportion of students attending a football game is [0.6592, 0.7044].

Confidence interval can be calculated by below formula

Pcap - Z_{\alpha /2}\sqrt{\frac{Pcap(1 - Pcap)}{n} } < p < Pcap + Z_{\alpha /2}\sqrt{\frac{Pcap(1 - Pcap)}{n} }

where the left part is the lower interval and right side is the higher interval.

Pcap = 750/1100

Pcap = 0.6818

Again to calculate Z_{\alpha /2} , as we know that the level of confidence is 90 percent so its value will be 1.645

now putting the values on the both side we can get ,

0.6818 - 1.645 x 0.014 < p  <  0.6818 + 1.645 x 0.014

0.6818 - 0.023  < p < 0.6818 + 0.023

0.6588 < p < 0.7048

the nearest value is [0.6592, 0.7044]

Hence the confidence interval for the proportion of students attending a football game is [0.6592, 0.7044]

To know more on confidence interval, visit here

brainly.com/question/13067956

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5 0
1 year ago
What multiplies to -36 but adds to -3
tekilochka [14]
Xy=-36

x+y=-3

x= -36/y

-36/y + y = -3

-36 + y^2 = -3y

y^2 +3y -36 = 0

I think you have to use quadratic formula to find the 2 values of y and then plug in for x
3 0
3 years ago
What is 24 – ( n + 3 ) ÷ 2 when n = ?
IrinaVladis [17]

Answer:

16 or 8

Step-by-step explanation:

I'm not sure if this are right

6 0
3 years ago
Order the expressions from least value to greatest value.<br> I added a screenshot
Ivanshal [37]
-4.8x3.2 , 4.32/-3 , -2 3/5 - (1 2/5), 2 1/4+(-1 2/5)

So basically if they’re numbered from left to right then it would be 1, 3, 4, 2.

Problem 1 has a solution of -15.36
Problem 2 has a solution of 0.85
Problem 3 has a solution of -1.44
Problem 4 has a solution of -1.2

In order -15.36 would be the least greatest, because it is the farthest from zero. Followed by -1.44, -1.2, and lastly 0.85.
6 0
3 years ago
Read 2 more answers
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