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
Maksim231197 [3]
2 years ago
9

Joseph wants to estimate 1 3/7 . 5 4/5 To estimate, he simplifies the expression 1 1/2 . 6 Is Joseph’s estimate an underestimate

or an overestimate? A. underestimate B. overestimate
Mathematics
1 answer:
Zolol [24]2 years ago
7 0


Well if her simplifies 1 3/7 to 1 1/2 and 5 4/5 to 6 then he would be overestimating because 1 1/2 is greater than 1 3/7 and 6 is greater than 5 4/5

Hope this helps!

You might be interested in
What is the answer of -32/40 + -35/40 ?
Alex787 [66]
-32/40 + -35/40 = -32+-35/40
= -67/40
= -1.675

The answer would then be -1.675.
3 0
3 years ago
Find x<br>13+6+2x-18=4x-29​
Alla [95]

Answer:

x = 15

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Simplify the expression 9m-7m+2m
tatuchka [14]
Simplify step-by-step.

9m−7m+2m

=9m+−7m+2m

Combine Like Terms:

=9m+−7m+2m

=(9m+−7m+2m)

=4m

4 0
3 years ago
A market research team thinks that their new ad campaign is better than their old one. They used to be able to sell to 50% of th
andreev551 [17]

Answer:

a. The test statistic is 2 and we conclude that the new ad campaign is not signficantly better.

Step-by-step explanation:

They used to be able to sell to 50% of those who saw their ads. Test if the new campaign is better.

At the null hypothesis, we test is it is the same, that is, the proportion is the same.

H_0: p = 0.5

At the alternate hypothesis, we test if it is significantly better, that is, the proportion is above 50%.

H_1: p > 0.5

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.

0.5 is tested at the null hypothesis:

This means that \mu = 0.5, \sigma = \sqrt{0.5*0.5} = 0.5

They take a random sample of 100 potential buyers and find that they convinced 60 of these people to buy their product.

This means that n = 100, X = \frac{60}{100} = 0.6

Test statistic:

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

z = \frac{0.6 - 0.5}{\frac{0.5}{\sqrt{100}}}

z = 2

The test statistic is 2.

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion above 0.6, which is 1 subtracted the by p-value of z = 2.

Looking at the z-table, z = 2 has a p-value of 0.9772.

1 - 0.9772 = 0.0228.

The p-value of the test is 0.0228 > 0.01, which means that we cannot conclude that the new ad campaign is signficantly better, so the correct answer is given by option A.

5 0
3 years ago
Convert 40/6 to a mixed number in simplest form
alex41 [277]
The answer would be six and 1 tenths or 6 and 1/10
8 0
3 years ago
Other questions:
  • Find the Inverse of
    15·1 answer
  • Name the property shown. 3 × 1 = 3
    15·1 answer
  • Which scale factors produce a contraction under a dilation of the original image?
    9·1 answer
  • Jakob is tiling a newly finished room.He estimates that he tiles about 9 square ft every 3/4 hour. About how many sq ft can he t
    10·1 answer
  • Solve x^2-3x-20=8 for quadratic equation​
    5·2 answers
  • !I will mark you BRAINLIEST!Can someone please help me with these questions
    12·2 answers
  • If x + 4y = 18 and x - 4y = 2, then x =? <br><br> A) 2<br><br> B) 4 <br><br> C) 5<br><br> D)10
    9·1 answer
  • Help this is worth 20 points!!
    11·1 answer
  • Which operation should be used to solve this problem?
    7·1 answer
  • What is the compound interest on investing $600 for 3 years at 7% per annum? ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!