3 years ago

What is the solution to the expression -2-3-(-4)?

Mathematics

1 answer:

Setler [38]3 years ago

7 0

Answer:

-1

Step-by-step explanation:

-2-3-(-4)=-2-3+4=-5+4=-1

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All sides of a square and a pentagon are 9 inches long. Are their perimeters the same? Explain

EastWind [94]

No they wouldn't be the same because, the perimeter is adding all sides.

The square has 4 sides so you would add 9, four times.

9 + 9 + 9 + 9 = 36

And a pentagon has 5 sides so you would add 9, five times.

9 + 9 + 9 + 9 + 9 = 45

So, they are not the same.

Hope this helps. :)

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4 years ago

A) -3 · x = -21<br><br> b) -7x + 16 = 2x - 20<br> help pls

NeTakaya

Answer:4

Step-by-step explanation:

B) -7x-2x= -20-16

-9x= -36

X= -36 /-9

X= 4

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3 years ago

Can yall help me with this

Dmitriy789 [7]

Answer:

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3 years ago

The shadow of a 60 foot pole is a 100 feet long. What is the angle of evaluation from the end of the shadow to the top of the po

Lilit [14]

Answer:

θ = 36.86°

Step-by-step explanation:

Given that,

The shadow of a 60 foot pole is a 100 feet long.

We need to find the angle of elevation from the end of the shadow to the top of the pole.

Height, h = 60 foot

Hypotenuse, H = 100 feet

Using trigonometry to find it.

$\sin\theta=\dfrac{\text{Height}}{\text{Hypotenuse}}\\\\\sin\theta=\dfrac{60}{100}\\\\\theta=\sin^{-1}(\dfrac{60}{100})\\\\\theta=36.86^{\circ}$

So, the angle of elevation is 36.86 degrees.

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3 years ago

Wich of the following best describes the expression 4(y+6)

algol [13]

Answer: 4y + 24

Explanation:

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3 years ago