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erik [133]
3 years ago
6

Please someone help me

Mathematics
1 answer:
zlopas [31]3 years ago
5 0
Ann's score (14,205) is greater than the level 3 score by 30.
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Need help answering this question
Nikolay [14]

Answer:

incorrect.

Step-by-step explanation:

Why?

72 times 2 is 144. You have a remainder of 4 left. Therefore the answer being 2r4

6 0
3 years ago
The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
Oksi-84 [34.3K]

Answer:

3.844 x 10 to the power of 5 is the answer i think

Step-by-step explanation:

4 0
3 years ago
Find the degree of the monomial.<br>3b2c​
garik1379 [7]

Answer:

3

Step-by-step explanation:

The degree of the given monomial = 2 + 1 = 3

8 0
3 years ago
In this fulcrum, for the weights to be balance, what do the distances d1 and d2 have to be if the overall length is 12 feet?
mel-nik [20]
For the fulcrum to balance, the product of weight and distance on both sides of the fulcrum must be the same.

Let d1= x. since total distance is 12, we can write d2 = 12 - x

for the fulcrum to balance:

60x = 50(12 - x)

60x = 600 - 50x

110x = 600

x = 5.45

Thus, d1= 5.45
and
d2= 12 - d1 = 12 - 5.45 = 6.55

d1 = 5.45
d2 = 6.55
5 0
3 years ago
Read 2 more answers
A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a
Stella [2.4K]

Answer:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

Step-by-step explanation:

Confidence interval:

Confidence level of x%

We build from a sample.

Between a and b.

Intepretation: We are x% sure that the population mean is between a and b.

In this question:

90%

45 CEO's

Between ($139,048, $154,144).

So

We are 90% sure that the mean salary of all CEO's falls within this interval.

The correct answer is:

b) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $139,048 to $154,144.

4 0
3 years ago
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