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eimsori [14]
3 years ago
12

How do I do this 4(-7)

Mathematics
2 answers:
gtnhenbr [62]3 years ago
6 0

Answer:

4(-7)

4*-7=-28

Whenever multiplying +positive sign and -negative sign= -negative sign

horrorfan [7]3 years ago
3 0
You do 4x-7 which = -28
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Vadim26 [7]

Answer:

180

Step-by-step explanation:

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3 years ago
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What is the slope of the graph?
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3 years ago
What is the area of this figure?
KatRina [158]
Hi!

I have attached 2 images that should help you understand :)

First, look at the edits I made to the image you posted. I separated the shape into smaller shapes so that we can find the area of each individual one. 

Let's start with the rectangle.

To find the area of a rectangle, multiply the width times the height. 
10 · 4 = 40

Rectangle = 40cm

Next up, the red triangles.

I have included another image showing the triangles combined into rectangles. So we can find the area of the triangles just like we would rectangles!

(let me know if you don't understand how I found the width + height of the triangles)

5 · 10 = 50

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3 0
3 years ago
The base of the triangle decreases by 30% and the height increases by 20%.
sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

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A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}

<u>Initial triangle:</u>

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A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2

<u>New triangle:</u>

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The area is

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5 0
3 years ago
I will give brainliest if applicable
insens350 [35]

Answer:

The average is exactly 26,375 gallons of gas per hour.

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Step-by-step explanation:

This is how much gas the jet uses per 1 hour

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2 years ago
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