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3 years ago

What’s the average of the following set of numbers ( 7,5,4,9)

Mathematics

1 answer:

Eduardwww [97]3 years ago

6 0

Answer:

$6.25$

Step-by-step explanation:

$We\ are\ given:\\Observations\ in\ the\ Set=(7,5,4,9)\\ As\ we\ know\ that,\\ Average\ or\ interchangeably\ mean=\frac{Total\ Sum\ of\ observations }{Total\ no.\ of\ observations} \\Here,\\Total\ sum\ of\ the\ observations=7+5+4+9=25\\Total\ number\ of\ observations=4\\Hence\ here,\\Mean/Average=\frac{25}{4}=6.25$

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Answer:

The answer is C.) m∠RCD = m∠ACD ÷ 2

RCD = ACD divided by two.

RCD = 90 degrees

ACD ÷2 = 180÷2 = 90 degrees.

So, your answer is C.

Hope this helped. Have a grey day!

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2 years ago

20 x 10 3 but the 3 is small please i need this ...

Serggg [28]

20x 10 to the third power equals 20000

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3 years ago

Read 2 more answers

11. Jessica invested $18820 to buy a new car for her business. How many years would it take for

just olya [345]

Answer :after four years the price of car depreciate

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2 years ago

Shown here is the graph of a function f.

vazorg [7]

Answer:

C) They are the same.

Step-by-step explanation:

The function f(x) has points as per graph:

f(1) = 9
f(3) = 1

So the points are:

(1, 9) and (3, 1)

Rate of change for f(x):

(1-9)/(3-1) = - 8/2 = -4

The function g(x) has points:

g(1) = -1² + 10 = 9
g(3) = -3² + 10 = 1

So the points are:

(1, 9) and (3, 1)

Rate of change for f(x):

(1-9)/(3-1) = - 8/2 = -4

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The answer choice is: C) They are the same

6 0

2 years ago

What is the equation of the line that is parallel to the given

finlep [7]

Answer

O 4x+3y=-6

Step-by-step explanation:

Hello, I can help you witht this,

to solve this you need

step one

the line we are looking for is paraller to the line in the graph, it means both of then have the same slope.

find the slope of the line in the graph

remember

to find the slope of a line with two known points you can use

Let

$P1(x_{1},y_{1})}\\P1(x_{2},y_{2})\\slope\\s=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

pick two points from he graph

P1(0,3)

P2(3,-1)

put the values into the equation

$slope(m)\\m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\m=\frac{-1-3}{3-0}\\m= \frac{-4}{3}$

so, the slope of the line we are looking for is m=-4/3 and passes through the point (-3,2)

step 2

use the equation

$y-y_{1}=m(x-x_{1})$

to ding the equation of the line

P1(-3,2)

$y-y_{1}=m(x-x_{1})\\y-2=\frac{-4}{3} (x+3})\\isolate\ y\\y-2=\frac{-4x}{3}-4\\y=\frac{-4x}{3}-4+2\\y+\frac{4x}{3}=-2\\multiply\ each\ side\ by\ 3\\3(y+\frac{4x}{3})=3*-2\\\\3y+4x=-6\\4x+3y=-6\\$

and that's all, that is the equation of the line that is parallel to the given

line and passes through the point (-3, 2).

Have a good day.

7 0

3 years ago