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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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The radius of a sphere is 5 yards. Find the<br> volume of the sphere.
FinnZ [79.3K]

Answer:

V = 523.6 yd³

Step-by-step explanation:

The equation for the volume of a sphere of radius r is

V = (4/3)πr³

and if we substitute 5 yds for r, we get

V = (4/3)*π*(5 yd)³, or

V = (4/3)·π·125 yd³, or approxomately

V = 523.6 yd³

3 0
3 years ago
3. Due to leakage, 30% of the water was lost from a water tank. If
Anni [7]

Answer:

1133.3 liters of water after leakage.

Step-by-step explanation:

x*.30=340

x=340/.30

x=1133.33

7 0
3 years ago
Is 28 rational or irrational
Sonja [21]
28 is a rational number
6 0
3 years ago
Read 2 more answers
Just answer number 7 and 8
melamori03 [73]
We are given the equation:
F = 2.25+0.2(m-1)
where:
F is the fare
m is the number of miles.

In question 7, we are given that the fare (F) is equal to $6.05 and we need to get the number of miles. To do so, we will simply substitute with the fare in the given equation and solve for the number of miles (m) as follows:
F = 2.25 + 0.2(m-1)
6.05 = 2.25 + 0.2(m-1)
6.05-2.25 = 0.2(m-1)
3.8 = 0.2(m-1)
3.8/0.2 = m-1
19 = m-1
m = 19+1
m = 20 miles

Number 8 is exactly the same, but we will substitute F=7.65 and again solve for m
4 0
3 years ago
Paige has 4 more balloons than Zoee. Emma  has 2 more balloons than Paige. Altogether they have 100 balloons. How many does each
aksik [14]
52 and 48 if you take away 2 from 50 then,add it to the other 50 52+48
6 0
3 years ago
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