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gtnhenbr [62]
2 years ago
10

If the battery costs $75 and has a life of 300 charge-discharge cycles, what is the cost of the energy in dollars per kilowatt h

our
Mathematics
1 answer:
kumpel [21]2 years ago
3 0

Answer:

I'm sorry but no idea

Step-by-step explanation:

No idea

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What is the value of 25 - 3x when x = 7 * ?
astra-53 [7]

Answer:

4

Step-by-step explanation:

25 - 3(7) .... Plug in 7

25 - 21 .... Multiply 3 and 7

4 ..... Answer

Hope this helps!

7 0
2 years ago
What is the volume of a hemisphere with a radius of 2.1 m, rounded to the nearest tenth of a cubic meter?
Art [367]

Answer:

The volume of hemisphere is <u>19.4 cubic meter</u>.

Step-by-step explanation:

Given:

A hemisphere is with a radius of 2.1 m.

Now, to find the hemisphere volume with radius 2.1 m.

Radius\ (r) = 2.1 m.

So, we put formula to get the volume of hemisphere:

Volume=\frac{2}{3} \pi r^3\ \ \ \ \ (Taking\ the\ value\ of\ \pi =3.14)\\\\Volume=\frac{2}{3} \times 3.14\times 2.1^3\\\\Volume=\frac{2}{3} \times 3.14\times 9.26\\\\Volume=19.384\ cubic\ meter.

<u><em>Hence, the rounded to the nearest tenth of a cubic meter is 19.4 cubic meter.</em></u>

Therefore, the volume of hemisphere is 19.4 cubic meter.

3 0
2 years ago
A construction worker fills a mold with concrete. This solid figure represents the mold.
allochka39001 [22]

Answer:

6580cm

Step-by-step explanation:

The answer is 6580cm because....

  • Step one First let's figure out what the smaller shape's volume is. To do so we need to multiply ( LxWxH ) so 6x5x? it does not list what the height is so we know it has the same height as the larger shape and it's height is 14cm so we will use 14cm. 6x5x14=420cm
  • Step two Now lets find the Volume of the larger shape. So lets do LxWxH so Lx?x14 it does not give us the length so we need to add up all of the numbers along the line. We got 7cm then 5 from the bottom of the smaller shape and 10cm. all ads up to 22cm so 20x22x14=6160
  • Finally we add up the following shapes Volume which are 6160+420=6580cm
3 0
3 years ago
The total weight of 9 bags of potatoes is 36 kilograms. Each bag weighs the same amount. What is the weight, in grams, of each b
Digiron [165]

Answer:

HELP ME!?

Step-by-step explanation:

7 0
3 years ago
What is the side length of a cube that has a volume of 0.008 m
Nataliya [291]
Let the side lenght of cube is a
voluem of cube= 0.008
a^3=0.008
a =0.2
side of lenght is 0.2
8 0
2 years ago
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