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Karolina [17]
3 years ago
5

PLEASE HELP NO LINKS!! The temperature change in a chemistry experiment was –2C every 30 min.

Mathematics
2 answers:
dexar [7]3 years ago
4 0

Answer:

what do you mean

Step-by-step explanation:

?

Colt1911 [192]3 years ago
4 0

Answer:

The temperature change in a chemistry experiment was -2C every 30 min. The initial temperature was +6C. What was the temperature after 4 h

4 hours = 8 half hours

0, 1, 2, 3, 4, 5, 6, 7, 8 half hours

6, 4, 2, 0, -2, -4, -6, -8, -10

-10 degrees C

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(5pg)3=125pg. Is wrong or correct
irakobra [83]

Answer:

125 p^3 g^3

Step-by-step explanation:

(5pg)^3

We know that (ab)^c = a^c * b^c

5^3 p^3 g^3

125 p^3 g^3

4 0
2 years ago
A
Morgarella [4.7K]
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7 0
2 years ago
A cylinder and a cone have the same base and height. The cylinder can hold about 4,712 mc015-1.jpg of sand. Jared says that the
exis [7]
The correct answer is C. So, lets go first to the equations that determine the volume of these solids. For the cylinder, that is simple; pi*r*r*h where r is the radius, h is the height and pi is the constant 3.14. For the cone, it is not easy to derive but one gets that the formula is:\frac{ \pi*r^2*h}{3}.

We notice thus that V_{cyl}=\pi*r^2*h=3V_{cone}. That holds irrespective of their radius or height; we only need to know that the heights and radii of the two objects are the same. Now, we have thus that:
\frac{V_{Cyl}}{V_{Cone} } =1/3.

We can check if this holds for Jared's statement; 1178/4712=0.25=1/4. So, it does not hold and thus Jared's statement is incorrect.
6 0
3 years ago
Read 2 more answers
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alexdok [17]
The product of this equation is #1
6 0
3 years ago
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Eighty percent of one store’s customers paid with credit cards. Forty customers came in that day. How many customers paid for th
Yuri [45]

Answer:

32

Step-by-step explanation:

40 = 100%

how many are 80% ?

well, 80% = 80× 1%

1% = 100% / 100

so, in our case

80% = 80×40/100 = 8×4 = 32

as a shortcut you consider a percentage x as a ratio factor of x/100 you multiply the 100% number with.

in our case

80% = 40 × 80/100 = 32

3 0
2 years ago
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