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Natalka [10]
3 years ago
15

A certain cancer treatment successfully treats the cancer 70% each time it is administered. My mom survived for 8 months using t

he treatment. What is the probability that the treatment was successful 8 months in a row? Round your final answer to the nearest tenth of a percent.
Mathematics
1 answer:
liq [111]3 years ago
4 0

Answer:

5.80%

Step-by-step explanation:

Given:

The probability of successful treatment of cancer is, P(Success)=70\%=0.7

The probability of successful treatment in a given month is independent of the other month. So, probability of successful treatment for 'n' months in a row is given as:

P(n-Successes)=(P(Success))^n

Plug in 8 for 'n' and determine the required probability. This gives,

P(8-successes)=(0.7)^8=0.0576=5.76\%\approx5.80\%

Therefore, the probability that the treatment was successful 8 months in a row is 5.80% rounded to nearest tenth of a percent.

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2 years ago
15 percent of 9 dollars is $?
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Answer:

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Step-by-step explanation:

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3 years ago
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Evaluate 5xyz + 3y for x=2.5, y=12, and z=4
Reika [66]

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636

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5xyz+3y

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3 years ago
Find the slope of the line.
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3 years ago
8х + 5у = -7<br> — 7х + бу = — 4
Levart [38]

Answer: x = -0.2651 and y = -0.9759

Step-by-step explanation:

Solution by substitution method

8x+5y= -7

-7x+6y= -4 = 7x-6y=4

Suppose,

8x+5y=-7→(1)

7x-6y=4→(2)

Taking equation (1), we have

8x+5y= -7

⇒8x= -5y -7

⇒x= -5y-7 / 8 →(3)

Putting x= -5y-7 / 8

in equation (2), we get 7x-6y=4

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⇒-83y=32+49

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⇒y= 81 / -83

⇒y= -0.9759→(4)

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x= -5y-7

x= -5(-0.9759)-7/8

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3 years ago
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