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
oksano4ka [1.4K]
3 years ago
5

15 divided by 3+13-8

Mathematics
2 answers:
Artist 52 [7]3 years ago
7 0
 First complete 3+13-8 to get 8 and divide 15 by 8 to get 1.875
notsponge [240]3 years ago
7 0
1.875 but you would round up so it would be 1.9
You might be interested in
Each side of a square is increasing at a rate of 6 cm/s. at what rate is the area of the square increasing when the area of the
katrin [286]
A = s^2
A' = 2s*s'

When the area is 36 cm^2, the side (s) is 6 cm. The area is increasing at the rate
A' = 2(6 cm)*(6 cm/s) = 72 cm^2/s
8 0
3 years ago
The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin
bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, Z_{Critical}=1.645.

We also know that E=5% or E=0.05

Also, since, \hat{p} is not given, we will assume that \hat{p}=0.5. This is because, the formula that we use will have \hat{p}(1-\hat{p}) in the expression and that will be maximum only when \hat{p}=0.5. (For any other value of \hat{p}, we will get a value less than 0.25. For example if, \hat{p} is 0.4, then 1-\hat{p}=0.6 and thus, \hat{p}(1-\hat{p})=0.24.).

We will now use the formula

n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})

We will now substitute all the data that we have and we will get

n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)

n=(32.9)^2\times0.25

n=270.6025

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0
3 years ago
What are two ways that you can find the surface area of a prism
3241004551 [841]

Answer:


Step-by-step explanation:


4 0
3 years ago
I need help doing thsi
Naily [24]
True! Because T is the defining letter of the line, so it would be true!

Hope this helps!! :)
7 0
3 years ago
Which expression is equivalent to (2g^3+4)^2
babunello [35]
(2g^3+4)^2= 4g^6 + 16g^3 + 16
The answer is B.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve 5x(68-75/98)+y=2
    9·1 answer
  • N^2-n-42=0 <br> Please help ASAP !!!!
    6·1 answer
  • What is the answer to ten sevens subtracting two sevens
    5·2 answers
  • Jack's mother gave him 505050 chocolates to give to his friends at his birthday party. He gave 333 chocolates to each of his fri
    15·1 answer
  • A fair number cube rolled 40 times. What is the probability of not rolling a 4?
    10·1 answer
  • Which of the following expressions are meaningful? Which are meaningless? Explain. (a) (a · b) · c (a · b) · c has ---Select---
    5·1 answer
  • If it takes 6 men 4 days to dig a hole 3 metres deep, how long will it take 10 men to dig same hole 7 metres deep?
    7·2 answers
  • In a recent survey of 1002 people, 701 said that they voted in a recent presidential election. Voting records show that 61% of e
    5·1 answer
  • Use the exchange rate £1 = €1.11 to convert €222 into £.
    5·1 answer
  • Which figure can be formed from the net?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!