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lidiya [134]
3 years ago
14

Marta conducts emissions inspections on cars. She finds that 8 percent of the cars fail the inspection. Let X be the number of c

ars Marta inspects until a car fails an inspection. Assume that the results of each inspection are independent.
Find the mean and standard deviation of X
Mathematics
1 answer:
exis [7]3 years ago
6 0

Answer:

mean - 12.5

SD - 12.0

Step-by-step explanation:

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Can someone help me so stressed<br><br> 29 points <br> Thanks
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Answer:a square

Step-by-step explanation:a square

7 0
3 years ago
Find the value of 7x+2y when x=2 and y=-9
Nostrana [21]
Answer = -4

Step-by-Step Explanation:

Given: x = 2, y = -9

Therefore, substituting the values
= 7x + 2y
= 7(2) + 2(-9)
= 14 + -18
= 14 - 18
= -4
6 0
2 years ago
Read 2 more answers
Which is the value of X
frosja888 [35]

Answer:

the first choice

Step-by-step explanation:

6 0
3 years ago
Which choices are equivalent to the quotient below? Check all that apply.
maks197457 [2]

Answer:

C

Step-by-step explanation:

4

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2 can be multiple by 3 and that will be same as 12

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6

5 0
2 years ago
Select the option for "?" that continues the pattern in each question. 2, 7, 26, 101, 400, ?
makvit [3.9K]

Answer:

1595

Step-by-step explanation:

The given sequence is

2, 7, 26, 101, 400, ?

We need to find the missing term in this pattern.

First term is 2.

a_2=2\times 4-1=8-1=7

a_3=7\times 4-2=28-2=26

a_4=26\times 4-3=104-3=101

a_5=101\times 4-4=404-4=400

So, the nh term of the sequence is

a_n=a_(n-1)\times 4-(n-1)

Substitute n=6,

a_n=a_(6-1)\times 4-(6-1)

a_n=a_(5)\times 4-5

To find the next term, we need to find the product of 400 and 4 and after that the difference of resultant number and 5.

a_6=400\times 4-5=1600-5=1595.

Therefore, the missing term is 1595.

3 0
3 years ago
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