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3 years ago

Geometry math question no Guessing and Please show work

Mathematics

1 answer:

Alona [7]3 years ago

3 0

Well, if point C is dilated by 5/3, C' should be (3*5/3, -6*5/3)

This is equivalent to Option A, (5, -10)

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16x-10y=10<br> 8x-6y=6<br> solve by elimination

Liula [17]

Answer:

(0,-1)

Step-by-step explanation:

I used substitution but you still get the same answer so it doesn't really matter. Unless it's asking you to show you're work.

8 0

4 years ago

If x represents the number of years since 2000 and y represents the gas price, predict what the difference between the gas price

natali 33 [55]

The difference between the gas prices in 2013 and 2001 is 3.00

<h3>The linear equation of the graph </h3>

Start by calculating the slope of the line of best fit using:

$m = \frac{y_2 -y_1}{x_2 - x_1}$

From the line of best fit, we have:

$m = \frac{3 - 2}{8 - 4}$

$m = \frac{1}{4}$

The regression equation is then represented as:

$y = m(x -x_1) + b$

So, we have:

$y = \frac 14(x -4) + 2$

$y = \frac 14x -1 + 2$

$y = \frac 14x +1$

Express as decimals

$y = 0.25x +1$

<h3>The price of the gas</h3>

In 2001, the value of x is 1

So, we have:

$y = 0.25(1) +1 =1.25$

In 2013, the value of x is 13.

So, we have:

$y = 0.25(13) +1 =4.25$

So, the difference (d) between the prices is:

$d = 4.25 - 1.25$

$d = 3.00$

Hence, the difference between the gas prices in 2013 and 2001 is 3.00

Read more about linear regression at:

brainly.com/question/26137159

6 0

3 years ago

Find 20% if 45 using a model.

Airida [17]

I don't really know what the question was, but I am guessing that it is 20% times 45. The answer I got was 9. I hope this helps, sorry if not. c;

4 0

3 years ago

Convert 7 over 8 to a decimal.<br><br> 0.375<br> 0.875<br> 0.925<br> 0.965

zubka84 [21]

7/8 in decimal form is 0.875 because you are dividing 7 by 8

3 0

3 years ago

Read 2 more answers

Solve 3(2x - 8) = 12

spayn [35]

Answer:

x=6

Step-by-step explanation:

Simplifying

3(2x + -8) = 12

Reorder the terms:

3(-8 + 2x) = 12

(-8 * 3 + 2x * 3) = 12

(-24 + 6x) = 12

Solving

-24 + 6x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '24' to each side of the equation.

-24 + 24 + 6x = 12 + 24

Combine like terms: -24 + 24 = 0

0 + 6x = 12 + 24

6x = 12 + 24

Combine like terms: 12 + 24 = 36

6x = 36

Divide each side by '6'.

x = 6

Simplifying

x = 6

5 0

3 years ago