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Luba_88 [7]
2 years ago
9

Helppp pls ASAP plsss help

Mathematics
1 answer:
horrorfan [7]2 years ago
5 0

Answer:

17

Step-by-step explanation:

8.5 divided by 0.5 = 17

Don't worry about it being negative

Think about the negative positive triangle, it looks like that

-  -

+

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In a shoe store window, Sandy sees a sign announcing 25% off all sandals in stock. She finds a pair she likes that was originall
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The admission fee at fun park is $13 for adults and $9 for children. On a certain day, 940 people entered the park and $10,148 w
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The answer is 518 children attended the fun park hope this helps
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A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer.
dimulka [17.4K]

Answer:

b.  =8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Step-by-step explanation:

Sample size (n) = 45

Sample mean (M) = 8.5 minutes

Variance (V) = 9 minutes

Z-score for a 95% confidence interval (z) = 1.96

A confidence interval is defined by the following expression:

M\pm z\sqrt{\frac{V}{n} }

Applying the given data:

8.5\pm 1.96\sqrt{\frac{9}{45} }\\8.5\pm 1.96\frac{3}{\sqrt 45}

Writing in Excel statements, the limits of the interval would be

=8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Therefore, the answer is alternative b.

8 0
3 years ago
What is the sum of the 6th square number and the 1st cube number?
Firdavs [7]

Answer:

37

Step-by-step explanation:

6th square number is 6 and 6² = 36

first cubed number is 1 and 1³ = 1

36+1=37

7 0
2 years ago
In which number does the digit 5 have a value that is ten times greater than the value of the digit 5 in the number 245,093?
Shtirlitz [24]

Answer:

<u>5</u>3,901

Step-by-step explanation:

The value given is: 245,093.

5 is in the thousands place. Multiply the thousands place with ten:

1,000 x 10 = 10,000

This means that the number with 5 in the ten thousands place will be your answer.

<u>5</u>3,901 is your answer.

~

5 0
3 years ago
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