Will someone help me with 4 I don't understand it

Mathematics

1 answer:

Maurinko [17]3 years ago

5 0

They are not equivalent expression because 3^2 is 9 since 3*3 is 9 but 3*2 is 6, so the expressions are not equivalent. <span />

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Greg is trying to push a box of books across the floor of his room. The box of books doesn't move because the forces on the box

eduard

B. when something is at rest it has balanced forces. And unbalanced when it's moving.<span />

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3 years ago

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Select all ratios equivalent to 20:15

Radda [10]

Answer:

b and c

Step-by-step explanation:

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2 years ago

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Help on this one as well ii manged to get an answer but If you understand it or im wrong an you please explain ! thank you !!

AnnZ [28]

Almost got it!

x + 3 = 3(y + 2)/2 [Multiplied both sides by 3]
so x + 3 = (3y + 6)/2
2(x + 3) = 3y + 6 [Multiplied both sides by 2]
2x + 6 = 3y + 6
2x = 3y [Subtracted 6 from both sides]
x = 3y/2 [Divided both sides by 2]
x/3 = y/2 [Divided both sides by 3]

So you wrote y/3 instead of y/2
Hope this helped!

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3 years ago

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Student made five tetrahedrons, a three dimensional figure with four triangular faces and labeled the faces 1-4. use an equation

JulsSmile [24]

The probability is 1/1024.

Each tetrahedron has a 1/4 chance of landing on 3, since there are 4 sides and only one of them is marked 3.

Each tetrahedron roll is independent, since no roll is affected by another.

This means we multiply the probabilities:
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Find the area of an octagon whose perimeter is 120 cm.

stira [4]

Answer:

The area of an octagon whose perimeter is 120 cm is 1086.4 $cm^{2}$

Step-by-step explanation:

An octagon is a polygon with eight sides. If the lengths of all the sides and the measurement of all the angles are equal, the octagon is called a regular octagon.

There is a predefined set of formulas for the calculation of perimeter, and area of a regular octagon.

The perimeter of an Octagon is given by

$P=8a$