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Mariana [72]
3 years ago
11

A recent survey in Montana revealed that 20% of the vehicles traveling on highways, where speed limits are posted at 70 miles pe

r hour, were exceeding the limit. Suppose you randomly record the speeds of ten vehicles traveling on US 131 where the speed limit is 70 miles per hour. Let X denote the number of vehicles that were exceeding the limit. What is the probability that exactly 3 vehicles were exceeding the limit?
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
6 0
This is a binomial problem. Binompdf(10,0.2,3)=0.201, about 20% chance
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Q1.
Ann [662]

Answer:

0.000174

3.5841 x 10^7

4.67  x 10^6

Step-by-step explanation:

1.74 x 10^-4 as an ordinary number

As an ordinary number, the decimal point will be moved 4 times to the left due to the negative power

Hence 1.74 x 10^-4 as an ordinary number

= 0.000174

358.41 x 10^5 in a standard form

In standard form, only one number will be before the decimal point, the number of times the decimal point is moved (to ensure that only the first digit is before the point) is added to the power of ten. Hence

358.41 x 10^5 in a standard form

= 3.5841 x 10^5+2

= 3.5841 x 10^7

4 670 000 in a standard form

As done above, only one digit will be before the decimal

4 670 000 in a standard form

= 4.67  x 10^6

4 0
3 years ago
What is the minimum number of angles required to determine the Cartesian components of a 3D vector and why?
Reika [66]

Answer: 3

Step-by-step explanation:

The 3D vector consists of 3 axes, let's say x, y and z.

Now, a vector P lies in all of them.

So, the angle it makes with x axis is α

The angle it makes with y axis is β

The angle it makes with z axis is γ

So, to determine the Cartesian components or to resolve the vector into it's Cartesian components we need 3 angles with each axis.

4 0
3 years ago
Tanya bought 8.05 yards of fleece fabric to make costumes for a school play. She needs 1.25 yards of fabric for each costume. Ho
juin [17]

Answer:

6

Step-by-step explanation:

8.05 divided by 1.25 is 6.44

6 0
3 years ago
NEED HELP QUICK PLEASE HELP
muminat

Answer:135

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Is 3x + 2x = 3 a function
worty [1.4K]

Answer:

You need to solve for Y. There should only be one corresponding y-value for that x-value. y = x + 1 is a function because Y is ALWAYS greater then X.

Step-by-step explanation:


5 0
3 years ago
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