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Sidana [21]
3 years ago
10

Help me i will give you 50 points

Mathematics
2 answers:
puteri [66]3 years ago
6 0
Hello,


1)   C
2)  A
3)   D
4)  B
jeyben [28]3 years ago
5 0
1)  (f + g)(2) = 7 + 3 = 10  The answer   is C

2) (f - g)(4) = 11 - 15 = -4   The answer is A

3)  f(1) = 2(1) + 3 = 5             g(1) = 1² - 1 = 0 The answer is D

4) (f xg ) (1)  = 7/3 The answer is B
   

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Answer:

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A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probabili
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Answer and explanation:

Given : A driving exam consists of 29 ​multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 ​(inclusive) mistakes is 0.53.

Let X be the number of mistake

P(X

P(6\leq X\leq 20)=0.53

To find : The probability of each of the following outcomes.

a) A student makes more than 20 mistakes

i.e. P(X>20)

P(X>20)=1-P(X\leq 20)

P(X>20)=1-(P(X\leq 5)+P(6\leq X\leq 20))

P(X>20)=1-(0.26+0.53)

P(X>20)=1-(0.79)

P(X>20)=0.21

b. A student makes 6 or more mistakes

i.e. P(X\geq 6)=1-P(X

P(X\geq 6)=1-0.26

P(X\geq 6)=0.74

c. A student makes at most 20 mistakes

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Using 'a' part  P(X>20)=0.21

P(X\leq 20)=1-0.21

P(X\leq 20)=0.79

d. Which two of these three events are​ complementary?

The complement of an event happening is the exact opposite: the probability of it not happening.

According to definition,

Option a and c are complementary events.

6 0
3 years ago
Read 2 more answers
Dilate Point B by a scale factor of 1/2
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Answer:

B

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8 0
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