1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
algol13
3 years ago
15

Defiantly need help with this one please HELP AND EXPLAIN

Mathematics
2 answers:
slega [8]3 years ago
7 0
12 miles in 48 minutes
12/48 or 1/4 miles per minute
Times 60 is 15 miles per hour
Darina [25.2K]3 years ago
6 0

Answer:

1.05833333 × 10-7 m/s  

Or

15 mph

Step-by-step explanation:

7.5+4.5=12

12 miles per 48 min

1.05833333 × 10-7 m/s  

Or

12/48 = 1/4

1/4 x 60 = 15

15 mph

You might be interested in
A triangle has one angle that measures 34 degrees, one angle that measures 47 degrees, and one angle that measures 99 degrees.
oksian1 [2.3K]

Answer: Scalene

Step-by-step explanation:

None of the angles equals the other so no isosceles or equilateral and a right triangle had a right angle and all right angles equal 90 degrees.

8 0
3 years ago
Read 2 more answers
Suppose that, in the past, 40% of all adults favored capital punishment. Do we have reason to believe that the proportion of adu
Alex_Xolod [135]

Answer:

The p-value of the test is 0.1469 > 0.05, which means that there is no reason to believe that the proportion of adults favoring capital punishment today has increased, using a 0.05 level of significance.

Step-by-step explanation:

Suppose that, in the past, 40% of all adults favored capital punishment. Test if the proportion has increased:

At the null hypothesis, we test if the proportion is still of 40%, that is:

H_0: p = 0.4

At the alternative hypothesis, we test if the proportion has increased, that is, is greater than 40%, so:

H_1: p > 0.4

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.4 is tested at the null hypothesis:

This means that \mu = 0.4, \sigma = \sqrt{0.4*0.6}

Random sample of 15 adults, 8 favor capital punishment.

This means that n = 15, X = \frac{8}{15} = 0.5333

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.5333 - 0.4}{\frac{\sqrt{0.4*0.6}}{\sqrt{15}}}

z = 1.05

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion of 0.5333 or more, which is 1 subtracted by the p-value of z = 1.05.

Looking at the z-table, z = 1.05 has a p-value of 0.8531.

1 - 0.8531 = 0.1469.

The p-value of the test is 0.1469 > 0.05, which means that there is no reason to believe that the proportion of adults favoring capital punishment today has increased, using a 0.05 level of significance.

3 0
2 years ago
Which set of statements shows the correct steps to find 45 percent of 75?
Liono4ka [1.6K]

Answer:

Step-by-step expWrite 45 percent as 9 ´ 5 percent, and write 5 percent as . Then, find of 75: . Multiply 3.75 by 9 to get 33.75. So, 45 percent of 75 is 33.75

i got it correct on edge

5 0
2 years ago
Read 2 more answers
“if the same strength and direction Of force is exerted on 2 objects, why might they be affected differently?” Answer journal #7
Ulleksa [173]

Answer:

If one is larger, there will be less stress on the middle of the object

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Don has an album that holds 600 coins. Each page of the album holds 6 coins. If 68​% of the album is​ empty, how many pages are
hodyreva [135]

Answer:

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Helpppppplissssssssssss
    10·1 answer
  • How to solve this problem!
    6·1 answer
  • Connie owns x books. Her friend Alma owns
    12·1 answer
  • Determine the value of x+3/8=2
    12·1 answer
  • Solve for x and y where x and y are real numbers 2y+ix=4+x-y<br> plz ans quick
    7·1 answer
  • What is the rate of change for the line that goes through the points (8,14) and (11, 19.25)​
    12·1 answer
  • Show that 0.357 is a rational number.
    14·1 answer
  • Convert the angle - 3 radians to degrees, rounding to the nearest 10th.
    13·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST!!!!!!!!!!!!!!!
    9·2 answers
  • The spinner below was
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!