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2 years ago

The Average of 16 and x is 21 Find x? Please answer quick!

Mathematics

1 answer:

givi [52]2 years ago

7 0

Answer:

x = 26

Step-by-step explanation:

There are two numbers and average is the sum of a certain amount of numbers divided by the same amount.

21 × 2 = 42

42 - 16 = 26

x = 26

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At the range and the standard deviation of the data set 40, 35, 45, 55, 60

Agata [3.3K]

60-35 = 25

Because with range you take the biggest number and subtract your lowest number.

7 0

2 years ago

Read 2 more answers

6(2x+y)+2(x+4y) how can I solve this

Aliun [14]

Answer:

Look at explanation i wasn't too good at this but i could get this far otherwise i didn't know what to do!

Step-by-step explanation:

6 x 2x = 12x 6 x y= 6y

12x+6y + 2x+4y

12x+2x= 14x

4y+6y= 10y

14x+10y

3 0

2 years ago

Ally babysat nine times. She earned $15, $20, $10, $12, $20, $16, $80, and $18. Find the mean number of dollars that Ally earned

eduard

Answer:

The mean is 21.62 which is approximately 22

Step-by-step explanation:

mean= 15+20+10+12+20+16+80+18/8=21.62 because

mean= sum of all numbers/numbers mentioned

7 0

2 years ago

Brainliest question please help please help me now plz

Kruka [31]

Answer:

Option A) Inside the circle

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The radius is equal to the distance from the center to any point on the circle

the formula to calculate the distance between two points is equal to

$d\sqrt{(y2-y1)^2+(x2-x1)^2 }$

we have

A(-5,-8),M(-1,-3)

substitute the values

$r=\sqrt{(-3+8)^{2}+(-1+5)^{2}}$

$r=\sqrt{(5)^{2}+(4)^{2}}$

$r=\sqrt{41}\ units$

step 2

Find the distance from the center to point V

we know that

If the distance from the center to point V is equal to the radius, then the point V lie on the circle

If the distance from the center to point V is less than the radius, then the point V lie inside the circle

If the distance from the center to point V is greater than the radius, then the point V lie outside the circle

we have

A(-5,-8),V(-11,-6)

substitute in the formula

$d=\sqrt{(-6+8)^{2}+(-11+5)^{2}}$

$d=\sqrt{(2)^{2}+(-6)^{2}}$

$d=\sqrt{40}\ units$

$\sqrt{40}\ units< \sqrt{41}\ units$

The distance from the center to point V is less than the radius

therefore

The point V lie inside the circle

Hope that helped :)

8 0

2 years ago

Two vertices of a polygon are ( 7, -18) and (7, 18). What is the length of this side of the polygon?

Scilla [17]

Because the two vertices have the same x-coordinate, the side is a vertical line. It starts vertically from -18 to 18

the length = 18 - (-18)
the length = 18 + 18
the length = 36

The length of the side is 36 unit

8 0

2 years ago