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3 years ago

Which pair shows equivalent expressions?

Mathematics

1 answer:

Semenov [28]3 years ago

8 0

Answer:

the answer is 3(x+2) = 3x=6

Step-by-step explanation:

3(x+2) = 3x+6 = 3 multiplies by x=3x 3 multiplied by 2=6 so it would be 3x+6

3x + 2x = x2(3+2)= 3x+2x= 5x its impossible to do 2x multiplies by 3 cause there is no similar variables there needs to be x in both

3x+2 - 3(x+2)= same as above there's no similar variables

-3(2+ )--6-3= this just doesnt work at all

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Answer:

D. 135.37 in²

Step-by-step explanation:

We have that the gift paper consists of two circles and a square.

Thus, we will need to find the area of the circles and the square.

Now, as the diameter of the circle = 4 inches

So, the radius of the circle = $\frac{4}{2}$ = 2 inches

Since, the area of a circle = $\pi r^{2}$

This implies that area of the two circles = $2\times \pi r^{2}$

i.e. Area of the circles = $2\times \pi 2^{2}$

i.e. Area of the circles = $8\pi$

i.e. Area of the two circles = 25.133 in²

Further, one side of the square = 10.5 inches

Thus, the area of the square = $side^{2}$

i.e. Area of the square = $10.5^{2}$

i.e. Area of the square = 110.25 in²

So, the overall area of the gift paper = 25.133 + 110.25 = 135.37 in².

Hence, the amount of paper used by Angela is 135.37 in².

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Answer:

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It is given that triangle ABC with segment AD drawn from vertex A and intersecting side BC.

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To prove ΔABC and ΔDBA are similar, we have to prove that corresponding interior angles of both triangle as same.

If segment AD is an altitude of ΔABC, then angle ADB is a right angle.

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