3 years ago

Please solve the question

Mathematics

1 answer:

Margarita [4]3 years ago

3 0

U should do like this... But sry I don't know third part

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I need to be able to find the value of x

drek231 [11]

If a 4 sided figure has 360°...for each side we add, we add 180°.

you have a 7 sided figure (360° + 3(180°) = 900°)

adding up your angles (781) and subtract it from 900 =

x = 119°

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3 years ago

The tables show the cost for different numbers of song downloads.

iren [92.7K]

Answer:

Step-by-step explanation:

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What is the slope of a line perpendicular to the line whose equation is 2x – 2y = 20.

Simora [160]

Answer:

-1

Step-by-step explanation:

Solve for y into y=mx+b

2x-2y=20

-2y=-2x+20

y=(-2x+20)/-2

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the slope is m, so it’s 1

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3 years ago

A triangle has sides with lengths of 60 centimeters, 63 centimeters, and 87 centimeters. Is it a right triangle

lozanna [386]

We can check this by seeing if Pythagorean's theorem applies. The longest side is the hypotenuse, so let's see if this is true:
$60^2+63^2 = 87^2$
$7569 = 7569$

This is, indeed correct, thus, this is a right triangle.

5 0

3 years ago

Alex

Slope(m) = -2 hope this helps

8 0

3 years ago