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3 years ago

Someone please help!

Mathematics

1 answer:

nasty-shy [4]3 years ago

8 0

It’s the same price as the original price because all the store owner did was change it then change it back

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Find a solution to the following system of equations.

Alex17521 [72]

The answer is B. -1,2

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3 years ago

Read 2 more answers

Choosing from 8 car models, 5 exterior paint colors, and 2 interior<br> colors

Gemiola [76]

I think it is 17 but i’m not sure i’m not the best at math

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3 years ago

Match the graph with the correct equation

tatyana61 [14]

<h3>Answer: Choice D) </h3>

y + 2 = -(x - 4)

============================================

Explanation:

The slope of this line is -1 because each time we move down 2 units, we move to the right 2 units. So slope = rise/run = -2/2 = -1

The slope formula says the same thing more or less. Let's pick the two points (0,2) and (2,0) to find the slope through them

m = (y2-y1)/(x2 - x1)

m = (0-2)/(2-0)

m = -2/2

m = -1

-------------

Using that slope and a point on the line, we can form the equation. We can pick any point really as long as it's on the line. However, to have it match with the answer choices, we'll have to pick the point (4,-2)

Turn to point slope form

y - y1 = m(x - x1)

y - y1 = -1(x - x1) ... plug in the slope

y - (-2) = -(x - 4) ... plug in the point (x1,y1) = (4, -2)

y + 2 = -(x - 4)

4 0

3 years ago

Help :((( please will mark brainless

nikklg [1K]

Answer:

$A_{total} = 25\ ft^2$

Step-by-step explanation:

<u>Step 1: Determine the area of the square</u>

$A = s^2$

$A = (3\ ft)^2$

$A = 9\ ft^2$

<u>Step 2: Split the top figure into a square and triangle</u>

Determine the area of the rectangle

$A = l * w$

$A = (7\ ft - 3\ ft) * (5\ ft - 2\ ft)$

$A = (4\ ft) * (3\ ft)$

$A = 12\ ft^2$

Determine the area of the triangle

$A = \frac{b * h}{2}$

$A = \frac{\frac{7\ ft - 3\ ft}{2} * (5\ ft - 3\ ft)}{2}$

$A=\frac{2\ ft * 2\ ft}{2}$

$A = \frac{4\ ft^2}{2}$

$A = 2\ ft^2$

Since there are two right triangles in the triangle that we have we multiply the area that we got by 2 to get the total area.

$A_{triangle} = 2\ ft^2*2$

$A_{triangle} = 4\ ft^2$

<u>Step 3: Determine the total area</u>

$A_{total} = 9\ ft^2 + 12\ ft^2 + 4\ ft^2$

$A_{total} = 25\ ft^2$

Answer: $A_{total} = 25\ ft^2$

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2 years ago

haley spent 1/2 of an hour playing on her phone. that used up 3/8 of her battery. how long would she have to play on her phone t

bonufazy [111]

She would need to play 50 minutes more to waste all her battery. In total 80 minutes.

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3 years ago