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NISA [10]
3 years ago
6

Can someone check this ?

Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

The answer is B. not D.

Step-by-step explanation:

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2. The seventh grade class is putting on a variety show to raise
ladessa [460]

Answer:

67

Step-by-step explanation:

15 x 10 = 150

150 x 6 = 900

15 x 7 = 105

900 + 105 = 1005

closest to 1000 without decimals

with decimals 66.6666666667

Please mark brainliest

7 0
3 years ago
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What is the value of the expression
prisoha [69]

Answer:

6

Step-by-step explanation:

Follow the PEMDAS rule.

Parentheses

Exponent

Multiplication

Division

Addition

Subtraction

By following that rule, you know that you have to take care of the exponent first. 1/2 to the fourth power is 1/16. Then the next step in pemdas is to multiply that with 48, which is 3. The you subtract 3 from 9.

Hope this helps <3

8 0
2 years ago
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Check whether (x-1) is a factor of 2x²-3x+1 or not ................ ​
wariber [46]
Answer: Yes

Step-by-Step Explanation:

5 0
2 years ago
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IQ scores have a mean of 100 and a standard deviation of 15. What percentile corresponds to an IQ score of 115? Explain the step
Kryger [21]

Answer:

The percentile that corresponds to an IQ score of 115 is 34.13 %

Step-by-step explanation:

Here, we want to find the percentile that corresponds to an IQ score of 115.

To calculate this percentile, we start with making observations. From the question, we are told that the mean score is 100 while the standard deviation is 15.

Now we want to find the percentile for a score if 115. For a score of 115, we can see that the difference between this score and the mean is 15 which is exactly equal to the standard deviation.

What this means is that the score is within +1 SD of the mean.

For a score of within +1 SD of the mean, the percentile is 34.13%

A score at the mean is the 50th percentile, a score which is 1 SD above or below the mean has a percentile value of 34.13%

Please, I will like you to check the attachment to see how percentiles are valued given the number of standard deviations a particular value is from the mean.

7 0
3 years ago
Josie is for a race.The ratio of the number of minutes she runs to the number of miles she runs is 24 to 3.She plans to run 10 m
saul85 [17]

Answer:

80 minutes

Step-by-step explanation:

We can solve this problem using rule of three:

The ratio of number of minutes and number of miles is 24 to 3, that is, for each 24 minutes running, she runs 3 miles.

So, if to run 3 miles she needs 24 minutes, to run 10 miles, how much time she will need:

3 miles -> 24 minutes

10 miles -> X minutes

3/10 = 24/X

X = 10 * 24 / 3 = 80 minutes.

She will take 80 minutes to run 10 miles.

3 0
2 years ago
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