[(8 - 2) x (3 +2) - 1 ]x 3

Answer:

A and C.

Step-by-step explanation:

Remember that to find the scale factor, we can write a ratio between each of the corresponding sides.

In other words, the scale factor k will be:

[tex]k=\frac{\text{Enlarged Side}}{\text{Corresponding Original Side}}[/tex]

Most importantly, their sides must be corresponding.

So, let's go through each of the answer choices.

A)

We have:

[tex]k=\frac{\text{Enlarged}}{\text{Original}}=\frac{6.5}{3.25}[/tex]

In our figures, we can see that 6.5 from our scaled figure indeed corresponds to 3.25 from our original figure. So, A is correct.

B)

We have:

[tex]k=\frac{\text{Enlarged}}{\text{Original}}=\frac{3.25}{6.5}[/tex]

This is not correct because 3.25 is our original, not our enlarged. It should be flipped, like choice A. So, B is not correct.

C)

We have:

[tex]k=\frac{\text{Enlarged}}{\text{Original}}=\frac{3}{1.5}[/tex]

We can see that 3 from our enlarged figure indeed corresponds with 1.5 from our original figure. So, choice C is also correct.

D)

We have:

[tex]k=\frac{\text{Enlarged}}{\text{Original}}=\frac{1.5}{3}[/tex]

Similarly to B, this is not correct because our enlarged number should be in the numerator while our original number should be in the denominator. So, D is not correct.

E)

We have:

[tex]k=\frac{\text{Enlarged}}{\text{Original}}=\frac{1.5}{3.25}[/tex]

This is not correct because the sides do not represent the scaled figure. Both of the given side lengths are from the original figure, and so we cannot determine the scale factor from this.

So, our final answers are A and C.

And we're done!

Answer:

A and C

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation:

This is because acoording to the order of operations or PEMDAS you do the perantheses first.

The amount that Brett make at this event is $510

Given that,

= $500 + 20% of $500

= $500 + $10

= $510

Find out more information about the Number here : https://brainly.com/question/17429689?referrer=searchResults

Answer:

k = 4

Step-by-step explanation:

Step 1: Write equation

-3k - 9 = -21

Step 2: Solve for k

Step 3: Check

Plug in k to verify it's a solution.

-3(4) - 9 = -21

-12 - 9 = -21

-21 = -21

Answer:

k=4

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Answer:

what are the options

Step-by-step explanation:

Answer:

-19.6

Step-by-step explanation:

If you really are confused look at the thing below

Answer:

The answer would be A

Step-by-step explanation:

on a nymber line -7 is the same digits away from 0 as positive 7 is.

Answer:

4

Step-by-step explanation:

Step 1:

2k - 6 = 2    Equation

Step 2:

2k = 8      Add 6 on both sides

Step 3:

8 ÷ 2   Divide

Answer:

k = 4

Hope This Helps :)

Answer:

29/59

Step-by-step explanation:

Answer:

1.80

Step-by-step explanation:

Answer:

7/8

Step-by-step explanation:

7/8 because he completed 4/8 (half) before he finished dinner. 4+2=6. So/ it should be 7/8.

Answer:

0.875 or 7/8

Step-by-step explanation:

Because 1/2 equals .50 and 2/8 is equal to 0.375, therefore add .50 and 0.375 and you get 0.875. Then come to your senses that is 7/8. Hoped that helped.

Answer:

(-2, -1)

Step-by-step explanation:

When reflecting across the x-axis, the x coordinate remains the same, but the y-coordinate turns to its opposite. So to get D from D', keep -2, and make 1 a -1.

Answer:

1st) -4.5+3.25

2nd) -4.5+(-3.25)

2a) 5.7-12.2 = -6.5

b) -12/4 - 9/4 = -21/4

c) -12 + 8 = -4

Step-by-step explanation:

Point B is 3.25 units away from Point A and it can be added or subtracted. Since the question asks for addition equations the negative number is in a bracket.

+(-) is -

The answer is y= -1.63:

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

((17^2=289)-(15^2=225))=64, the square root of 64 is 8.

Answer:18 - 10

Step-by-step explanation:

Greetings! Hope this helps!

Answer

3 + 2h = 7

-3           -3

2h = 4

/2    /2

h = 2

Have a good day!

_______________

A brainliest would help tons! :D

The solution is Option A

The ratio of length : width : thickness of the plank is 1 : 12 : 4

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the length of the plank = 1 cm

The width of the plank = 12 cm

The thickness of the plank = 4 cm

Now , the proportion is given as

The ratio of length : width : thickness of the plank = 1 : 12 : 4

Therefore , the value of A is 1 : 12 : 4

Hence , the proportion is  1 : 12 : 4

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Answer:

a = -8

Step-by-step explanation:

19 = -3a - 5

Add 5 to both sides.

24 = -3a

Divide both sides by -3.

-8 = a

Switch sides.

a = -8

Answer:

Step-by-step explanation:

19= -3a -5

Inverse operation:

19= -3a -5

+5         +5

24 = -3a

________

-3       -3

-8 = a

D

I just had the same test

Answer:

D

Step-by-step explanation:

Answer:

0.01

Step-by-step explanation:

If you convert 10 into a decimal it's just 0.1, multiply 0.1 by itself only one time because the exponent is 2 and you get 0.01

Answer:

1. 83 2. 22 3. 4.9 and 6

Step-by-step explanation:

Answer:

B: $74

Step-by-step explanation:

To find out how much Ashley made, you need to find how much 74% is of 200. The answer to this is 148. Since Chris made 1/2 of what Ashley did, we have to divide 148 by 2. And you get 74

Answer:

Step-by-step explanation:

-14 + 2x + 3 = 4x - 13 - 7x

We can first add the numbers and coefficients on either side:

2x - 11 = -3x - 13

Then, we can add 3x to both sides:

5x - 11 = -13

We can add 11 to both sides

5x = -13 + 11 = -2

Lastly, we can divide both sides by 5

x = -2 / 5

Answer:

-1+-7

Step-by-step explanation:

-1 - 7= -8

1. 1 - 7=6 which is not equal to -8

2. 1+7 = 8 whihc is not equal to -8

3. -1+-7 = -1-7 = -8

4. -1+7 = 6 whihc is not equal to -8