A plane left Chicago at 8 A.M. At 12 P.M., the plane landed in Los Angeles, which is 1,700 miles away.

1 answer:

5 0

First find the amount of time:
12 pm - 8 am = 4 hours

now divide the total miles traveled by the amount of time travleed:

1700 miles / 4 hours = 425 miles per hour

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A container contains 1212 diesel engines. The company chooses 88 engines at random, and will not ship the container if any of t

bija089 [108]

Answer:

The probability that a container will be shipped even though it contains 2 defectives if the sample size is 88, will be $P(S)=85.99\%$

Step-by-step explanation:

The first step is to count the number of total possible random sets of taking a sample size of 88 engines over 1212 engines of the population, so $\left[\begin{array}{ccc}1212\\88\end{array}\right] =1212C88=4.7205x10^{135}$

The second step is to count the number of total possible random sets of taking a sample size of 88 engines over 1210 engines (discounting the 2 defective engines) as the possible ways to succeed, so $\left[\begin{array}{ccc}1210\\88\end{array}\right] =1212C88=4.0596x10^{135}$

Finally we need to compute $\frac{\# ways\ to\ succeed}{\# random\ sets\ of \ 88} =\frac{4.0596x10^{135}}{4.7205x10^{135}}=0.8599=P(S)$ , therefore the probability that a container will be shipped is $P(S)=85.99\%$

7 0

3 years ago

4x+y=210 and 3x+2y=195

meriva

Subsitution

4x+y=210
minus 4x both sides
y=210-4x
sub 210-4x for y in other equation

3x+2(210-4x)=195
3x+420-8x=195
-5x+420=195
minus 420 both sides
-5x=-225
divide both sides by -5
x=45

sub back

y=210-4x
y=210-4(45)
y=210-180
y=30

x=45
y=30
(x,y)
(45,30)

7 0

3 years ago

Read 2 more answers

Laura is paying 1.07x including tax for a sweater that cost x before tax. Write this expression in another way to show the amoun

stich3 [128]

Tax = (7/100)x = 7x/100 = 0.07x

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3 years ago

Pleaseee help on this❤️

Dominik [7]

B is incorrect which means it is the answer

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