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Allushta [10]
3 years ago
14

On the coldest night in North Ice, Greenland, the temperature dropped from 0°C to −21°Cin 7 hours. What is the average temperatu

re change per hour? Enter your answer in the box.
Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer:

The answers -3

(I took the test)

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Simplify The Following Expression!<br><br> Thanks!
andrew11 [14]
It would be -14.......
3 0
3 years ago
A conical tent has a radius of 10.4 ft and a height of 8.4 ft. Doubling which dimensions will quadruple the volume of the tent?
avanturin [10]

Answer: Doubling the radius.

Step-by-step explanation:

The volume of a cone can be found with the following formula:

V=\frac{1}{3}\pi r^2h

Where "r" is the radius and "h" is the height of the cone.

Let's find the volume of the conical tent with a radius of 10.4 feet and a height of 8.4 feet.

Identifiying that:

r=10.4\ ft\\\\h=8.4\ ft

You get this volume:

V_1=\frac{1}{3}\pi (10.4\ ft)^2(8.4\ ft)\\\\V_1=951.43\ ft^3

If you double the radius, the volume of the conical tent will be:

V_2=\frac{1}{3}\pi (2*10.4\ ft)^2(8.4\ ft)\\\\V_2=3,805.70\ ft^3

When you divide both volumes, you get:

\frac{3,805.70\ ft^3}{951.43\ ft^3}=4

Therefore, doubling the radius will quadruple the volume of the tent.

5 0
3 years ago
Which value of f makes 3f+5=32 a true statement?<br> a. f=6 <br> b. f=8 <br> c. f=9<br> d. f=12
DIA [1.3K]

We just need to solve the equation in order to find the value.

3f+5=32

So we subtract 5 from both sides of the euqation and get

3f=27

Now we divide by 3 on both sides and get

f=9

So the answer is C.


Hope this helps!

6 0
3 years ago
Read 2 more answers
6(5r-11)-(5-r)}6(5r−11)−(5−r)
denpristay [2]

Answer:

31r-71

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
7 1/2% of 60 please help i give brainliest
Fofino [41]

Answer:

4.5

Step-by-step explanation:

7 1/2 X 6 = 45.

Then you just add the decimal point to get 4.5.

7 0
3 years ago
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