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
Firdavs [7]
3 years ago
5

Helppppppppppppppppp

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
4 0

Answer:

24

Step-by-step explanation:

antoniya [11.8K]3 years ago
3 0

Answer:

The answer will be 24

Step-by-step explanation:

Hope this Helped

You might be interested in
Write the expression x^-5 in positive exponential form <br> Answer for brainliest!
vladimir1956 [14]

It's 1/x^5

Hope it helps

8 0
3 years ago
Read 2 more answers
A random sample of 49 statistics examinations was taken. the average score, in the sample, was 84 with a variance of 12.25. the
tester [92]

Since in this case we are only using the variance of the sample and not the variance of the real population, therefore we use the t statistic. The formula for the confidence interval is:

<span>CI = X ± t * s / sqrt(n)                      ---> 1</span>

Where,

X = the sample mean = 84

t = the t score which is obtained in the standard distribution tables at 95% confidence level

s = sample variance = 12.25

n = number of samples = 49

From the table at 95% confidence interval and degrees of freedom of 48 (DOF = n -1), the value of t is around:

t = 1.68

 

Therefore substituting the given values to equation 1:

CI = 84 ± 1.68 * 12.25 / sqrt(49)

CI = 84 ± 2.94

CI = 81.06, 86.94

 

<span>Therefore at 95% confidence level, the scores is from 81 to 87.</span>

6 0
3 years ago
Gavin and Ethan are training for a race. Last week,gavin ran 7 kilometers and Ethan ran twice as far as gavin what is the total
Irina18 [472]

Answer:

14 km

Step-by-step explanation:

7x2

6 0
2 years ago
5x-y=7
seropon [69]

Answer:

see graph of y = 5x - 7

Step-by-step explanation:

If graphing is the task, you should rewrite the equation in a y = ax + b form. All straight lines can be described in this form, only the a and b determine which line it is.

Your equation 5x-y=7 has the 5x on the left side, so lets move it to the right. It will get a negative sign (this is the same as subtracting 5x like you did in your picture)

5x - y = 7

-y = 7 - 5x

Now we still have the -y which should be a +y. So we multiply left and right with -1 and get:

y = -7 + 5x

If we swap the -y and 5x (we can, because they are just an addition), we get:

y = 5x - 7

Now the equation is in its "normal" form. It's like the y = ax + b with a and b chosen as a=5 and b=-7.

The normal form is handy because you can immediately see the slope is 5 and the intersection with the y-axis is at y=-7.

3 0
3 years ago
MATH QUIZ! plz help thanks!
Rashid [163]

Answer:

Step-by-step explanation:

(3/4)*(2/5)=6/20=3/10

4 0
2 years ago
Other questions:
  • Emily is 41 years old. Colin is 10 years older than Emily. Dan is 15 years younger than Emily. What is the total of their combin
    8·2 answers
  • Debby is working on her typing.
    14·1 answer
  • Is this proportional
    15·2 answers
  • 59.952 rounded to the nearest tenth
    6·1 answer
  • Which of these rational numbers is also an integer?
    6·2 answers
  • The question is in the image below.
    7·1 answer
  • Find the missing side. Round to the nearest tenth. <br>A.7.4<br>B.4.4<br>C.6.4<br>D.5.4​
    7·2 answers
  • Can someone hep me with this
    7·2 answers
  • 38 is 40% of what number?<br> URGENT
    8·2 answers
  • Which point lies on the line described by the equation below? y+4=4(x-3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!