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Ghella [55]
3 years ago
6

X is a discrete random variable. The table below defines a probability distribution for X.

Mathematics
1 answer:
leva [86]3 years ago
3 0
0.21jbvghhjjjjhhhyyhhhhhhjjjj
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Geometry! Please help!!
krek1111 [17]
Problem One
Find AM
AM = 71.5 - 22 = 49.5

Step Two
State the Givens.
AM = 49.5
MN = 71.5
MB = x
MP = 97.5

Step Three
Set up the Proportion

AM : NM :: x : PM
49.5 : 71.5 :: x : 97.5

Substitute and solve
49.5 / 71.5 = x / 97.5    Cross Multiply
49.5 * 97.5 = 71.5 * x   Combine the numbers on the left.
4860.375 = 71.5 * x     Divide by 71.5
4860.375 / 71.5 = x      
x = 67.98

Problem Two
Remark
This is just a straight application of the Pythagorean Theorem
a^2 + b^2 = c^2
a = 10
b = 24
c = ??

10^2 + 24^2 = c^2
100 + 576 = c^2
676 = c^2
sqrt(c^2) = sqrt(676)
c = 26  <<<< answer
6 0
3 years ago
Can anybody help me with this question?
Bogdan [553]
For number 16 we need to write the data as a ratio then convert to a unit rate (amount per 1)...

308/14 = x/1

Cross multiply

14x = 308
x = 308/14
x = 22

So the fuel efficiency is
22 miles per 1 gallon or

22/1

For number 17, since the car was driven at 48 mph, we just have to divide distance driven by speed to get how long it took...

288 miles ÷ 48 mph =

6 hours
6 0
3 years ago
The quotient of a number and 3 is 6
KengaRu [80]

Step-by-step explanation:

the quotient of a number and 3 is 6

Solution,

Let the number be x, then

\frac{x}{3}  = 6 \\ x = 6 \times 3 \\ x = 18

5 0
2 years ago
Read 2 more answers
Easy Question! 5pts + branliest for the correct answer!
Advocard [28]

Answer:

29

Step-by-step explanation:

For the two digit numbers it has to end in a zero or five and be greater than 9 and below 100.

There are 18 multiples of 5 that are 2 digit

For multiples of 7... it's easier to write it out because the total number will will less than 20.

There are 13 multiples of 7 that are 2 digits

Now you have to subtract the multiples of 7 that end in a 0 or 5

That give you 11 multiples

Add 11 and 18 to get 29

5 0
3 years ago
Read 2 more answers
Hagan ran 3 miles in 15 minutes at a constant speed. How long will it take him to run 12 miles at the same speed?
Ratling [72]

Answer:

about 2.4 or 2

Step-by-step explanation:

because 15 divided by 3 gives you unit rate which is 5 now 12 divided by 5 which you can round or get decimal

5 0
3 years ago
Read 2 more answers
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