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4 years ago

12

Help! Im not quite sure how to start this worksheet, if someone could help and answer one question that would be so helpful (and

maybe try to explain how you did it). Thank you!

1 answer:

guapka [62]4 years ago

5 0

Answer:

Step-by-step explanation:

Here we go

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under a dilation, the point (2,6) is moved to (6,18) what is the scale factor of the dilation? enter your answer in the box

Anestetic [448]

<h2>3</h2>

Step-by-step explanation:

The equation of line passing through the two points is $\frac{y-y_{1} }{x-x_{1} }=\frac{y_{2} -y_{1}}{x_{2} -x_{1}}$

When substituted,the equation becomes $\frac{y-6}{x-2}=\frac{18-6}{6-2}$

which when simplified is $y=3\times x$

The line clearly passes through origin.

The distance between two points is $\sqrt{(y_{1}-y_{2} )^{2}+(x_{1}- x_{2} )^{2}}$

Distance between origin and $(2,6)$ is $\sqrt{40}$ .

Distance between origin and $(6,18)$ is $\sqrt{360}$

Scale factor is $\frac{distance\text{ }of\text{ }p_{2}\text{ from origin}}{distance \text{ } of \text{ } p_{1}\text{ from origin}}$

So,scale factor is $\frac{\sqrt{360} }{\sqrt{40} }$

which when simplified becomes 3.

6 0

3 years ago

598+20+987+78+90+87+80+60+70+90

aleksklad [387]

Answer:

2,160

Step-by-step explanation:

598 + 20 = 618

618 + 987 = 1,605

1,605 + 78 = 1,683

1,683 + 90 = 1,773

1,773 + 87 = 1,860

1,860 + 80 = 1,940

1,940 + 60 = 2,000

2000 + 70 = 2,070

2070 + 90 = 2,160

5 0

3 years ago

Peter takes 7 minutes and 30 seconds to run 1 mile. How many miles can he run in 15 minutes?

Snezhnost [94]

Answer:

2 miles

Step-by-step explanation:

Peter takes 7 minutes and 30 seconds per mile.

7 times 2 is 14 minutes.

30 seconds times 2 is 1 minute.

If you add these 2 values together you get 15 minutes.

So we need to times the miles by 2 to get 2 miles.

I hope this helps, have a lovely day.

4 0

2 years ago

Simplify (3x2 − 2) (5x2 5x − 1).

Evgen [1.6K]

If you would like to simplify (3x^2 - 2) * (5x^2 + 5x - 1), you can calculate this using the following steps:

(3x^2 - 2) * (5x^2 + 5x - 1) = 3x^2 * 5x^2 + 3x^2 * 5x - 3x^2 * 1 - 2 * 5x^2 - 2 * 5x + 2 * 1 = 15x^4 + 15x^3 - 3x^2 - 10x^2 - 10x + 2 = 15x^4 + 15x^3 - 13x^2<span> - 10x + 2
</span>
The correct result would be 15x^4 + 15x^3 - 13x^2<span> - 10x + 2.</span>

5 0

3 years ago

Jenny uses 7/9 gallon of water to water roses

jeka94

<span>2(7/9)-(1/4) = 47/36 = 1 11/36</span>

8 0

3 years ago