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3 years ago

Mean, medium, & mode of 17, 6, 20, 11, 13, 20, 18

Mathematics

1 answer:

kodGreya [7K]3 years ago

5 0

Step-by-step explanation:

medium -11

I don't know about mean & mode

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F(x) = 2x and g(x) = x + 1, find f(3) and find gf(3)

lord [1]

Answer:

6 and 7

Step-by-step explanation:

To evaluate f(3), substitute x = 3 into f(x) , that is

f(3) = 2(3) = 6

To evaluate g(f(3)), substitute f(3) = 6 into g(x)

g(6) = 6 + 1 = 7

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3 years ago

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

d1i1m1o1n [39]

This is a right triangle, so first find the distance between the two legs...

Points where the numbers are the same indicate a point that is on the same axis as the other

(-3, 3) and (-3, 2) have a distance of 1

(-3,2) and (1,2) have a distance of 4

The area formula for a triangle is 1/2bh and in this case 1/2(1)(4) = 2

The area is 2

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3 years ago

How many solutions can be found for the linear equation <br><br> 3(x/2 + 5 ) - 6 = ( 9x + 18 ) / 3

I am Lyosha [343]

answer: it would be one solution, becasue the variables are different and the constants dont matter, since the variables are different

5 0

3 years ago

Andy is buying a car.

serg [7]

7/100* 6500=455

6500-455=6045

6045/12=503.75

Andy pays 503.75 a month

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3 years ago

Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 20. Find the prob

Ipatiy [6.2K]

Answer:

Randomly selected adult has an IQ less than 136 is 0.9641

Step-by-step explanation:

It is given that, it is normal distribution with mean 100 and SD as 20.

So, let's use the formula of z-score

z= $\frac{x-mean}{SD}$

For this problem,

x= 136

Plug in this value into the formula

z-score= $\frac{136-100}{20}$

=1.8

Now, use z-score table to find the probability

Find the corresponding value for the row 1.8 and the column 0.00, we do get 0.9641

So, Randomly selected adult has an IQ less than 136 is 0.9641

3 0

3 years ago