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kifflom [539]
3 years ago
13

3/10 x 7/10 Please help

Mathematics
2 answers:
Galina-37 [17]3 years ago
5 0
Answer: 0.21

3/10 = 0.3 * 7/10 = 0.7

0.3 * 0.7 = 0.21
Phantasy [73]3 years ago
3 0

Answer:

\frac{21}{100}

Step-by-step explanation:

  1. Write it out: \frac{3}{10} × \frac{7}{10}  
  2. 10 × 10 = 100
  3. 3 × 7 = 21
  4. Put them together: \frac{21}{100}  

I hope this helps!

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Lim <br> x → 1 <br> ln(x)/<br> sin(7πx)
mote1985 [20]
\displaystyle\lim_{x\to1}\frac{\ln x}{\sin7\pi x}

Note that both the numerator and denominator approach 0 as x\to1, so we can try using L'Hopital's rule.

\displaystyle\lim_{x\to1}\frac{\lnx }{\sin7\pi x}=\lim_{x\to1}\frac{\frac1x}{7\pi\cos7\pi x}=\lim_{x\to1}\frac1{7\pi x\cos7\pi x}

The denominator is nonzero at x=1, so the limit is equivalent to

\displaystyle\frac1{\lim\limits_{x\to1}7\pi x\cos7\pi x}=\frac1{7\pi\cos7\pi}=-\frac1{7\pi}
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2 years ago
A hotel charges a $10,000 annual fee plus an additional $200 for each night you stay there. What is the average cost per night i
Anton [14]

Answer:

\$400

Step-by-step explanation:

GIVEN: A hotel charges a \$10000 annual fee plus an additional \$200 for each night you stay there.

TO FIND: average cost per night if you stay at the hotel for 50 nights.

SOLUTION:

Annual fee charged by hotel =\$10000

amount charged each night we stay there =\$200

Total number of nights we stay =50

Total amount paid for 50 nights=50\times\$200

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Total amount paid =\text{annual fee}+\text{total amount paid for 50 nights}

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average cost per night =\frac{\text{total amount paid}}{\text{total number of nights of stay}}

putting values,

average cost per night =\frac{20000}{50}

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Hence average cost per night if we stay at hotel for 50 days is \$400

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Also, because g(x) opens down, the coefficient of x^2 is negative.

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This leaves D as the answer.

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Step-by-step explanation:

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