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zloy xaker [14]
3 years ago
7

Help me please i really ain't got much time today

Mathematics
1 answer:
Korolek [52]3 years ago
5 0

Answer:

only if you give me v-bucks in fortnite sniper_fn23134

Step-by-step explanation:

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a quantity of ethanol is cooled from 47.9° C to 12.3°C and releases 3.12 KJ of heat. what is the mass of the ethanol sample?​
victus00 [196]

Answer:

35.9 grams

Step-by-step explanation:

We use the formula:

q=m*C_p*\Delta T

Where

q is heat released

m is mass

C_p is the constant 2.44

ΔT is change in temperature

We put the info in the formula and solve for m (mass):

q=m*C_p*\Delta T\\-3.12 =  m*2.44(12.3-47.9)\\-3.12*10^3=m*(-86.864)\\m=35.9

The mass of ethanol is 35.9 grams

8 0
4 years ago
For the function y = 3x^2 - 12x + 4, what is the mirror point for the y-intercept? Give your answer in (x,y) point form.
saveliy_v [14]

Answer:

Your in Pacyber aren't you? Mr. Breux class? Anyway the answer is (0,-4)

Step-by-step explanation:

The y intercept is (0,-4)

6 0
3 years ago
The answer to – 7x + y = -10
Nataliya [291]

Step-by-step explanation:

y=7x-10

3 0
3 years ago
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5y − x =10 , solve the equation for y?
jek_recluse [69]

Answer:

-2

Step-by-step explanation:

7 0
3 years ago
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The price of an iphone was reduced from $960 to $840. By what percentage was the price of the iphone reduced?
Taya2010 [7]

Answer:

13.5%

Step-by-step explanation:

I hope this helps

5 0
3 years ago
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