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shepuryov [24]
2 years ago
12

Eric paints 8 rooms in 3 days for $600.

Mathematics
1 answer:
sweet [91]2 years ago
5 0
He earns 200 dollars per day. He earns 75 dollars per room. He can paint about 16 rooms in 6 days.
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F (x) = x^2 - 6x + 14
kipiarov [429]

y−5=(x−3)2

sorry if im wrong i might be!

<em>have a luvly day!</em>

6 0
2 years ago
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Can someone please help me .?
MariettaO [177]

Answer:

5

Step-by-step explanation:

5+7

4 0
3 years ago
WILL GIVE BRAINLIEST AND 100 POINTS
Airida [17]

Answer:

Apologiabiology  Ambitious

v=vanilla

c=chocolate

A.

4v+c=45

v+c=27

b.

multiply 2nd equation by -1 and add to first

4v+c=45

-v-c=-27 +

3v+0c=18

3v=18

divide both sides by 3

v=6

sub bac

v+c=27

6+c=27

minus 6

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6 vanila

Step-by-step explanation:

5 0
3 years ago
A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as
Sati [7]

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{18}{100}\times 100=18  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5600years}=0.00012years^{-1}

b) for finding the age

t=\frac{2.303}{0.00012}\log\frac{100}{18}  

t=13829years

The age of the fossilized leaf is 13829 years.

7 0
3 years ago
We are stuck on this problem.
mezya [45]

Answer:

The measure of angle BED is 78°

Step-by-step explanation:

Hopefully you can see what I did there.

6 0
2 years ago
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