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2 years ago

7

The coordinates of △ABC are A(12,8), B(10,18), C(4,16). After a dilation, the coordinates are A'(6,4), B'(5,9), C'(2,8). Find th

e scale factor.

1 answer:

melomori [17]2 years ago

5 0

Answer: B 1/2

Step-by-step explanation:

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Two canoes travel down a river, starting at 9:00 a.M. One canoe travels twice as fast as the other. After 4.5 hours, the canoes

Vedmedyk [2.9K]

Answer:

$v_1=3.33 \ miles/hour\\v_2=6.66 \ miles/hour$

Step-by-step explanation:

<u>Constant Speed Motion </u>

When the object travels the same distances in the same period of time, the speed is constant and is can be calculated as

$\displaystyle v=\frac{x}{t}$

where x is the distance and t is the time

There are two canoes traveling at speeds v1 and v2. One of them has twice the speed as the other. Let's say

$v_2=2v_1$

When t hours have passed, the canoes have traveled x1 and x2 respectively.

$x_1=v_1t$

$x_2=v_2t$

Since

$v_2=2v_1$

Then

$x_2=2v_1t$

The distance between them is

$X=x_2-x_1=2v_1t-v_1t$

$X=v_1t$

That distance is known and equals 11.25 miles, thus

$v_1t=15$

Solving for v1 and using t=4.5 hours

$\displaystyle v_1=\frac{15}{4.5}$

$v_1=3.33 \ miles/hour$

$v_2=2\times 3.33$

$\boxed{v_2=6.66 \ miles/hour}$

6 0

2 years ago

there are 84 students in the 8th grade. if they are split evenly into 6 groups how many students will be in each group

steposvetlana [31]

Answer: 14 students will be in each group

84 divided by 6 = 14

8 0

2 years ago

Read 2 more answers

!HELP HELP HELP HELP!

liraira [26]

Answer:

615.75216 ft

Step-by-step explanation:

diameterd=2r

d=2×14

d=28

circumferenceC=2πr

C=2×π×14

C=28π

C=87.9645943

areaA=πr2

A=π×142

A=196π

A=615.75216

Hope this helps~

All the love, Ya boi Fraser :)

8 0

2 years ago

How do i find the surface area?

daser333 [38]

Surface area is what it seems to be. All of the area of the solid's faces together. Like a cube, just find the areas of all of the squares that make the cube then add them together.

4 0

3 years ago

true or false: The orientation, or direction a figure is facing, is preserved by a translation and dilation. will give brainlies

4vir4ik [10]

True, Sorry if I’m wrong

8 0

3 years ago