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IgorLugansk [536]

3 years ago

8

Math Topic: Scale Drawings. What is the scale factor from polygon ABCD to polygon PQRS? Write your answer in fraction form. ( Lo

ok at image to get answer) Please answer! I just started this unit and I don't know the answer.

1 answer:

MariettaO [177]3 years ago

3 0

Answer:

1.5 is the asnwer because when you multiply first image by 1.5 you get the second.

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HELP EASY PLS ITS TIMED

marta [7]

Answer:

its 3

Step-by-step explanation:

i hope that is right

much love

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8 0

3 years ago

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Is x = 1 the solution to 3(x + 3) = 8 - 2x<br> (show me why! Or maybe why not)

zimovet [89]

3(x+3)= 8-2x
3x +9 = 8 - 2x
3x + 1 =-2x
1 = -5x
x = -1/5

no

7 0

3 years ago

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Lizzy is working two jobs to make money for a new car. She works 15 hours a week and earns 93$. She makes 5$ for each hour she b

kirill115 [55]

She worked 9 hours at baby-sitting and 6 hours at her parents store.

Step-by-step explanation:

Let,

Baby-sitting hours = x

Hours at parents store = y

Total hours = 15

Amount earned = $93

According to given statement;

x+y=15 Eqn 1

5x+8y=93 Eqn 2

Multiplying Eqn 1 by 5;

$5(x+y=15)\\5x+5y=75\ \ \ Eqn 3\\$

Subtracting Eqn 3 from Eqn 2;

$(5x+8y)-(5x+5y)=93-75\\5x+8y-5x-5y=18\\3y=18$

Dividing both sides by 3;

$\frac{3y}{3}=\frac{18}{3}\\y=6$

Putting y=6 in Eqn 1

$x+6=15\\x=15-6\\x=9$

She worked 9 hours at baby-sitting and 6 hours at her parents store.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

BRAINLIESTT ASAP! PLEASE HELP ME :)

Yuliya22 [10]

Answer:

the building strong enough to withstand the denali quake

Step-by-step explanation:

the building strong enough to withstand the denali quake

Step-by-step explanation:

denali quake 6.7 x 70 = 469

the building in denali should be strong enough to withstand an earthquake of that magnitude

rat island quake 7.8 x 30 = 234

the building in the rat islands should be strong enough to withstand an earthquake of that magnitude :)

8 0

3 years ago

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Find a particular solution to y" - y' + 9y = 3 sin 3x

Dima020 [189]

Answer:

cos3x

Step-by-step explanation:

y" - y' + 9y = 3 sin 3x

$D^{2}y-Dy+9y=3 sin3x$

$y=\frac{3 sin 3x}{(D^{2} -D+9}=3 sin 3x$

here $D^2$ will be replaced by $\alpha^2$ where $\alpha$ is coefficient of x

$y=\frac{3 sin 3x}{-3^{2} -D+9}$

$y=-3\frac{sin 3x}{D}$

$y=-3\int\ {sin 3x} \, dx$

$y=-3\frac{cos3x}{-3}$

y=cos3x

hence Particular solution is cos3x

6 0

3 years ago