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Harman [31]
3 years ago
7

when you two shapes to compare on a coordinate plan,you can determine the scale factor, knowing that the transformation was a di

lation.Generate instructions you would give another student to determine the scale factor.​
Mathematics
1 answer:
iragen [17]3 years ago
8 0

Answer:

jjjjjj

Step-by-step explanation:

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For the concentric circles shown, the radius of the inner circle is 3 centimeters and the distance from the
Tema [17]

Answer:

d

Step-by-step explanation:

Area of the inner circle = 3^2 π = 9 π

total area = 10^2 π = 100π

area of the shaded region

100π - 9 π = 91 π

5 0
3 years ago
HELP!!!!!!!!What is the equation, in slope-intercept form, of the line that passes through (0, −2) and has a slope of −3?
emmainna [20.7K]

Answer:

y= -3x -2

Step-by-step explanation:

(0 , -2) and a slope of -3

The -2 is the y-intercept, put the initial point there

Use that point and put the -3 slope


3 0
3 years ago
1) If x= 4.2 and y = 5, what is the value of the expression
____ [38]

Answer:

Step-by-step explanation:

y-x=0.7

y=x+0.7, so lets plug in that into the expressions instead of y

1)

(y-x)=

x+0.7-x=

x+0.7+(-x)=

x+(-x)+0.7=

x-x+0.7=

0.7

2)

(x-(x+0.7))/((x+0.7)-x)=

(x-x+0.7)/(x+0.7-x)=

(x-x+0.7)/(x+0.7+(-x))=

(x-x+0.7)/(x+0.7+(-x))=

(x-x+0.7)/(x+(-x)+0.7)=

(x-x+0.7)/(x-x+0.7)=

0.7/0.7=

1

3 0
3 years ago
Explain why the two figures below are not similar. Use complete sentences and provide evidence to support
Andreas93 [3]

Answer:

they are not like terms

Step-by-step explanation:

8 0
3 years ago
What is the percent of change from 2000 to 200
Kamila [148]

Answer: 90% decrease

Step-by-step explanation: First determine whether the number is increasing or decreasing. Since it changes from 2,000 to 200, it's going down so it's decreasing.

Now to find the percent decrease, we divide the

amount of change by the original number.

The <em>amount of change</em> is the difference between the two numbers

which in this case is 2,000 - 200 and the original number is 2,000.

So we have \frac{2,000 - 200}{2,000}.

2,000 - 200 is 1,800.

So we're left with 1,800/2,000 and dividing

2,000 into 1,800 gives us 0.9.

Remember however that our problem is

asking for a <em>percent</em>, not a decimal.

So we need to write 0.9 as a percent and we can do

that by multiplying it by 100 and adding the percent sign.

So 0.9 becomes 90%.

So when a number changes from 2,000 to 200,

it has decreased by 90%.

8 0
3 years ago
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