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
Anna007 [38]
3 years ago
6

I’ll give u brainiest pls help me im so lost

Mathematics
1 answer:
Vlad1618 [11]3 years ago
3 0

Answer:

(f o g)(4)=27

Step-by-step explanation:

(f o g)(4)=2x+5

f(g(4))=2x+5

f(4²-2(4)+3)=2x+5

f(16-8+3)=2x+5

f(8+3)=2x+5

f(11)=2x+5

f(11)=2(11)+5

f(11)=22+5

f(11)=27

Therefore, (f o g)(4)=27

You might be interested in
To finance her community college education, Sarah takes out a loan for $3400. After a year Sarah decides to pay off the interest
sdas [7]
She has to pay $170 i think 
5 0
3 years ago
Answer this question PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
yarga [219]

Answer:

The last one.

Step-by-step explanation:

3 0
2 years ago
The ratio of boys to girls in the 7th grade is 2:3 If there are 24 boys, how many girls are there?
NISA [10]
You don't define the ratio, so there are two answers:
If 2/3 is boys to girls, then,
2/3 = 24/x
x = 36 girls

If 2/3 is girls to boys, then,
2/3 = x/24
x = 16 girls
7 0
2 years ago
Read 2 more answers
I'll mark you as the brainiest if you get this correct thx xxx This homework is due tomorrow thx sm for your help
N76 [4]

Answer:

8 boxes of pens, 3 boxes of pencils

Step-by-step explanation:

120 is 3 boxes of pencils

120 is 8 boxes of pens

6 0
2 years ago
Read 2 more answers
When the sample size and the sample proportion remain the same, a 90 percent confidence interval for a population proportion p w
deff fn [24]

Answer:

A 90% confidence interval for <em>p</em> will be <u>narrower </u>than the 99% confidence interval.

Step-by-step explanation:

The formula to compute the (1 - <em>α</em>) % confidence interval for a population proportion is:

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

Here \hat p is the sample proportion.

The margin of error of the confidence interval is:

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

The MOE is dependent on:

  1. Confidence level
  2. Standard deviation
  3. Sample size

The MOE is directly related to the confidence level and standard deviation.

So if any of the two increases then the MOE also increases, thus widening the confidence interval.

And the MOE is inversely related to the sample size.

So if the sample increases the MOE decreases and vice versa.

It is provided that the sample size and the sample proportion are not altered.

The critical value of <em>z</em> for 90% confidence level is:

z_{\alpha/2}= z_{0.10/2}=z_{0.05}=1.645

And the critical value of <em>z</em> for 99% confidence level is:

z_{\alpha/2}= z_{0.05/2}=z_{0.05}=1.96

So as the confidence level increases the critical value increases.

Thus, a 90% confidence interval for <em>p</em> will be narrower than the 99% confidence interval.

6 0
3 years ago
Other questions:
  • Which unit of measure would be the most appropriate to measure the capacity of a bottle of nail polish?
    9·1 answer
  • Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1
    10·1 answer
  • 4, 02, 03, α4, 28.<br> Find the common difference
    13·1 answer
  • My tens digit is double my ones digit. I am less than 70 and greater than 60.
    13·1 answer
  • Please can someone help me with this!
    15·1 answer
  • Please hurry..........
    6·1 answer
  • Which of the following is not a statement?
    14·2 answers
  • In a sample of students, 125 said they exercise on a regular basis. How large was the sample if 27.3% said they exercised on a r
    8·2 answers
  • 15. Eric earns $8.30 per hour at work. If he
    8·2 answers
  • 20,000,000 + 3,000,000 + 60,000 + 4,000 + 900 + 7 in standard form
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!