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shepuryov [24]
4 years ago
6

One day at 3:00 AM the temperature was -22 in Kodiak Alaska. At 11:00 AM the temperature was 42 degrees. What was the average ch

ange in temperature per hour?
-22 - 42?.....
Mathematics
1 answer:
dolphi86 [110]4 years ago
8 0
It is 8 hours so you would do 22+42 and get 64. You would then divide 64 by 8 and get 8 degrees per hour.
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Yuki888 [10]
You start with 24, there are 8 added, there are 12 taken away, then 9 are taken away. The equation looks like:
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7 0
3 years ago
Pls help i’m very confused
zhuklara [117]

Answer:

m<EBD = 130 degrees

Step-by-step explanation:

We can say that Line EC is bisected by Line AD at point B.  The angle CBD = 50 degrees is a supplement of the bisected line EC.  With this in mind we can say:

EBD + CBD = 180

And we can solve for EBD:

EBD + CBD = 180

EBD + 50 = 180

EBD = 130

So the measure of angle EBD is 130 degrees.

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5 0
4 years ago
Read 2 more answers
Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade level and handedness
mash [69]

Answer: 4) 157

Step-by-step explanation:

We know that there is no association between the grade level and the andedness, then we should find that the ratio between left handeds and right handed is the same for both grades.

In 7-th grade we have:

Left handed : 11

Right handed: 72

The ratio is 11/72 = 0.14

Then, the ratio for the 8-th graders must be about the same:

Left handed: 24

Right handed: X

Ratio: 24/X

Let's start with the bigger option, X = 157.

24/157 = 0.15

Ok, we now see that with the bigger option we obtained almost the same ratio (if we use the smaller values for X, we will get a ratio bigger than 0.15, so 0.15 is the better aproximation that we can find to the 0.14 of the 7-th graders)

Then the correct option is 4) 157

4 0
3 years ago
How many times can 2500 go into 25
Alex_Xolod [135]

Answer:

100 times

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4 0
3 years ago
Since a sample data shows that a linear correlation coefficient between two variables is about 0.08, then it rules out a possibl
myrzilka [38]

Answer:

False

Explanation:

A linear correlation coefficient is used to measure the the level of relationship between two seemingly dependent and independent variables. A relationship exists between two variables in linear correlation if one affects the other, either negatively or positively never zero. If linear correlation has a negative value then one variable increases while the other decreases. If linear correlation coefficient is positive then both variables increase together. If zero then there is no relationship as one variable's increase or decrease has nothing to do with the other. In the case above, correlation is positive at 0.08 hence we can say that there is a relationship between the two variables.

4 0
3 years ago
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