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
a_sh-v [17]
2 years ago
12

There are 2 kids of the age 14 what is the percentage of the students that are 14?

Mathematics
2 answers:
Naddik [55]2 years ago
8 0

Step-by-step explanation:

yess 7%is the right answer

hope it helps

lys-0071 [83]2 years ago
4 0

Answer:

7% my answer i think if im mistake please dont report me

You might be interested in
A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true prop
attashe74 [19]

Answer:

0.424 - 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.286

0.424 + 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.562

The 99% confidence interval would be given by (0.286;0.562)

Step-by-step explanation:

Information given:

X= 36 represent the families owned at least one DVD player

n= 85 represent the total number of families

\hat p=\frac{36}{85}= 0.424 represent the estimated proportion of families owned at least one DVD player

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.05. And the critical value would be given by:

z_{\alpha/2}=-2.58, z_{1-\alpha/2}=2.58

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

If we replace the values obtained we got:

0.424 - 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.286

0.424 + 2.58\sqrt{\frac{0.424(1-0.424)}{85}}=0.562

The 99% confidence interval would be given by (0.286;0.562)

8 0
3 years ago
A restaurant manager states the number of customers that enter the
konstantin123 [22]
Yes it is true because if 3x +15=2x+60 it is true
6 0
3 years ago
Read 2 more answers
Consider the equation n2+5=21.
lesya692 [45]

Step-by-step explanation:

n2+5=21

n2 =21-5

n2 = 16

n =16/2=8

6 0
3 years ago
X² + y² = 8
ohaa [14]

Answer:

(2,2)~ \text{and}~ (-2,-2)

Step by step explanation:

x^2 +y^2 =8~~~~~~...(i)\\\\x-y=0~~~~~~~~~...(ii)\\\\\text{From (ii):}\\\\x-y = 0 \implies x = y\\\\\text{Substitute x = y  in eq (i):}\\\\~~~~~~y^2 +y^2 =8\\\\\implies 2y^2 = 8\\ \\\implies y^2 = \dfrac 82\\\\\implies y^2 = 4\\\\\implies y = \pm\sqrt 4\\\\\implies y = \pm 2\\\\\text{Substitute y = x  in equation (i):}\\ \\~~~~~~x^2 +x^2 = 8\\ \\\implies 2x^2 = 8\\\\\implies x^2 = \dfrac 82\\\\\implies x^2 = 4\\\\\implies x = \pm\sqrt 4\\\\\implies x = \pm2\\\\

\text{Hence,}~ (x,y) = (\pm2, \pm 2)

3 0
2 years ago
Pleasaaaaseee answer the all for BRAINLEST answer and thanks
kow [346]
X=2/4=1/2
s=1 1/2
r= 1/2
y= 2/7
w= 1 2/3
p=2/5
Hope this works i can't see the others ok?
3 0
3 years ago
Other questions:
  • The perimeter of a rectangular field is 232 yards. if the length of the field is 65 yards, what is its width?
    11·1 answer
  • I don’t know the answer to this can you help
    11·2 answers
  • 15 points--Which equation represents a line that has a slope of 1/3 and passes through point (–2, 1)?
    11·1 answer
  • What is 5 X 1 over 3/5
    12·2 answers
  • The sum of four times a number and one is equal to the difference of twice the number and 9
    11·1 answer
  • Anyone really good at math and can help with my test ?
    8·1 answer
  • Simon is painting his garden fence. The fence is 80m long. So far, he has painted 45m. How much does he have left to paint?
    9·1 answer
  • Jon makes a map of his neighborhood for a presentation. The scale of his map is 1inch:250 feet, How many feet do 6.5 inches repr
    12·1 answer
  • How to covert 37 feet to yards
    11·1 answer
  • What percent of 240$ is 12$​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!