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3 years ago

3. The point (12,9) is included in a direct variation. What is the constant of variation? (1 point)

Mathematics

2 answers:

vekshin13 years ago

8 0

c ok hope that's correct

Bogdan [553]3 years ago

3 0

Answer:

it is B, 3/4

Step-by-step explanation:

i just took it

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A dilation has center (0,0). Find the image of the point B ( 5/3, -7/2) for the scale factor 1/3

EastWind [94]

<h3>Answer: (5/9, -7/6)</h3>

=======================================================

Explanation:

Since the center of dilation is (0,0), we multiply each coordinate of point B by the scale factor 1/3.

The coordinates of point B are x = 5/3 and y = -7/2

So we have

(1/3)*x = (1/3)*(5/3) = (1*5)/(3*3) = 5/9 as the new x coordinate

and

(1/3)*y = (1/3)*(-7/2) = (1*(-7))/(3*2) = -7/6 as the new y coordinate

The point (5/3, -7/2) moves to (5/9, -7/6)

6 0

2 years ago

BRAINLIEST!!!!!

Eduardwww [97]

Here are the answers:
1.D
2.D
3.C
4.A
5.C

3 0

3 years ago

2 grey cards

denis-greek [22]

P(G)=2
P(Y)=7
P(P)=5

Now

Total=E=7+5+2=12+2=14

Now

P(G')=14-2=12

Probability of not selecting gray =12/14

Now

But pink is in 5

P(P)=5/12

5 0

2 years ago

A.4 B.5 C.6 D.8<br> HELP PLEASE

soldier1979 [14.2K]

Answer:

A) The radius is 4 m

Step-by-step explanation:

Volume of cylinder formula:

V = πr²h

<h3>Given</h3>

V = 64π,
h = 4 m

Find r by substituting given values:

64π = πr²*4
64π = 4r²π
16 = r²
r = √16
r = 4 m

Correct choice is A.

8 0

1 year ago

Read 2 more answers

Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq

Alex

Answer:

$D =\frac{P}{\pi X^2}$

And solving for the radius we got:

$X = \sqrt{\frac{P}{\pi D}}$

And replacing the data given we got:

$X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km$

And this value converted to meters is $X = 87.40 m$

Step-by-step explanation:

For this case we know the population size $P = 20000$ and we also know the population density $D = 480 \frac{people}{km^2}$

We can assume that the area is a circle. We also know that the formula for the population density is given by:

$D= \frac{P}{A}$

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

$A = \pi X^2$

With X the radius of the circle

And then the populationd density become:

$D =\frac{P}{\pi X^2}$

And solving for the radius we got:

$X = \sqrt{\frac{P}{\pi D}}$

And replacing the data given we got:

$X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km$

And this value converted to meters is $X = 87.40 m$

6 0

3 years ago