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sveta [45]
3 years ago
12

When Hiroto is writing, there is 0.92 probability that there will be no spelling mistakes on a page. One day, Hiroto writes an e

ssay that is 11 pages long.
Assuming that Hiroto is equally likely to have a spelling mistake on each of the 11 pages, what is the probability that he will have a spelling mistake on at least one of the pages?
Mathematics
1 answer:
prohojiy [21]3 years ago
8 0

Answer:

0.60

Step-by-step explanation:

Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

The probability of a mistake on at least one page is 1 minus the probability of making no mistakes.

P(at least 1) = 1 − P(none)

P = 1 − ₁₁C₀ (0.08)⁰ (0.92)¹¹⁻⁰

P = 1 − (0.92)¹¹

P = 0.60

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3 years ago
What is the solution to the following equation? 12 + 3x+7 = 0
Diano4ka-milaya [45]
The answer is x=-6.33333 (-19/3)

First, add like terms (12+7), which would equal to 19.
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2 years ago
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3 years ago
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I need help with 6,7,8,9
algol [13]
Hi there!


6. x² + 6x = 27
subtract 27 on both sides to make the equation equal to 0.
x² + 6x - 27 = 0
(x - 3)(x + 9) = 0
x - 3 = 0                    x + 9 = 0
     x = 3                           x = -9

7. k² - 13k + 36 = 0
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8. g(x) is translated up 5 from f(x).

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Hope this helped! :)
7 0
3 years ago
You place a ladder up against a building. The bottom of the ladder is 6.5 feet from the base of the building. The ladder reaches
blagie [28]

Answer:

21 feet

Step-by-step explanation:

pythagoreom theorem

a^2+b^2=c^2

6.5^2+20^2=c^2

42.25+400=c^2

442.25=c^2

21 feet

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3 years ago
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