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expeople1 [14]
3 years ago
14

A) The temperature is -2 ∘C . If the temperature rises by 15 ∘C , what is the new temperature?

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

For A it's 13 degrees C. For B it is 15 degrees.

Step-by-step explanation:

Adding positive numbers to a negative number can be put like this:

ex--- -5+9. You have -5 and +9. What you do is flip it around. +9-5 is 4. So. -2+15=+15-2=13.

For B:

from 6 to 0 is 6, and from 0 to 9 is 9. 6+9=15. There's your answers.

Hope it helped!

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A) 6<br><br> B) 8<br><br> C) 9<br><br> D) 12
Lemur [1.5K]

your answer would be c) 9

7 0
4 years ago
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Please help!! its due in 9 minutes
Grace [21]

Answer:

Times it by 40. That is the pattern.

3 0
3 years ago
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each row has a starting cart that it 4 feet long if this row is 43 feet long how many total carts are in it
Margaret [11]

Answer:

43/4 = 10.25 which rounds to the nearest whole number of 10 total carts

5 0
2 years ago
A researcher working in a Human Resources department was interested in gender and sales figures so he conducted a t-test. The me
irina1246 [14]

Answer:

d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

Step-by-step explanation:

Previous concepts

The Effect size is a "quantitative measure of the magnitude of the experimenter effect. "

The Cohen's d effect size is given by  the following formula:

d = \frac{\bar X_1 -\bar X_2}{\sqrt{\frac{s^2_1 +s^2_2}{2}}}

Solution to the problem

And for this case we can assume:

\bar X_1 =78.24 the mean for females

\bar X_2 =66.25 the mean for males

s_1 = s_2= 7 represent the deviations for both groups

And if we replace we got:

d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

4 0
3 years ago
Is 0.6 repeating a rational number
julsineya [31]
Any decimal number that is repeating can be written in the form <span>\frac{a}{b}</span> with b not equal to zero, so they are rational numbers.

The short answer is yes, 0.6 repeating is a rational number.

Hope this helped :)
6 0
3 years ago
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