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soldi70 [24.7K]
3 years ago
5

NEED HELP PLS FOR BOTH!!!

Mathematics
1 answer:
Kipish [7]3 years ago
4 0
39/500 needs to be multiplied by 15, which results in 585/500. This is 1.17 as a decimal. 191/200 in diameter needs to be multiplied by 8, which equals 1528/200. This is 7.64 as a decimal.
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What number must you add to complete the square x^2+2x=9
MAVERICK [17]

Answer:

+ 1

Step-by-step explanation:

Given

x² + 2x = 9

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(1)x + 1² = 9 + 1²

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5 0
3 years ago
Read 2 more answers
The area of the top face of a cube is 49cm^3. What is the volume of th cube?​
Vlad1618 [11]

Answer:

V=2401cm^{3}

Step-by-step explanation:

The fact that the figure is a cube means all sides, faces, and corners are equal.

V=BHW

V=49cm^{2}(W)

V=49cm^{2}(49cm)\\ V=2401cm^{3}

3 0
3 years ago
Select the polynomial that is a perfect square trinomial.
Alina [70]

Answer:

  16x^2 -8x +1

Step-by-step explanation:

The square of a binomial expands as ...

  (a +b)^2 = a^2 +2ab +b^2

So, you need to look for a trinomial with first and last terms that are perfect squares and a middle term that is double the product of the roots of those terms.

This pattern matches ...

  16x^2 -8x +1 = (4x -1)^2

6 0
2 years ago
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