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
Oliga [24]
3 years ago
8

Evaluate   by distributing and find the expression 

Mathematics
1 answer:
Elden [556K]3 years ago
3 0

Answer:

B

Step-by-step explanation:

You might be interested in
Find the prime factorization of the number 60
erastova [34]
2squaredx3x5 is the prime factorization
8 0
3 years ago
A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly selected subjects are given th
taurus [48]

Answer:

The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 27 - 1 = 26

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0518

The margin of error is:

M = T\frac{s}{\sqrt{n}}

In which s is the standard deviation of the sample and n is the size of the sample.

In this question:

n = 27, s = 21.4. So

M = 2.0518\frac{21.4}{\sqrt{27}}

M = 8.45

The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.

5 0
3 years ago
From the top of a tower 120m high the angle of depression of a stone on the ground is found to be 30°. How far is the stone from
gogolik [260]

Step-by-step explanation:

so from this, I think the difference is 207.84 m

:)

8 0
2 years ago
9282737 + 1881 x 19916 =
sweet-ann [11.9K]
Answer to this math equation: 46744733
5 0
3 years ago
Read 2 more answers
Use mental math for 122+306
poizon [28]
306+122=428
Because you add 6 & 2 in the ones place which is 8.
then 2 and 0 which is 2.
finally 1 and 3 which is 4


4 0
3 years ago
Other questions:
  • Mr. kim is 25 years older that his daughter. in 10 years Mr. Kim will be twice as old as his daughter will be . How old is each
    9·2 answers
  • Find the area of the perimeter
    6·1 answer
  • The number of earthquake tremors in a 12-month period appears to be distributed as a Poisson random variable with a mean of 6. A
    11·1 answer
  • 13. The table shows the height of a plant as it grows. Which equation in point-slope form gives the
    11·1 answer
  • Henry divided his socks into five equal groups. Let s represent the total number of socks. Which expression and solution represe
    6·2 answers
  • Find the missing measurements of the right triangle. Round your answers to the
    8·1 answer
  • The distance traveled by a toy car can be modeled by D(t) = t3 − 3t2 + t − 3, where t > 3 represents time in seconds. If the
    15·1 answer
  • Can Someone help me on this
    10·1 answer
  • Area of circle with 7.1km rounded to the nearest tenth
    6·1 answer
  • Match the expressions with the property used to generate 5y + 2y + 6 + 2. what is the expression and what is the property?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!