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Alina [70]
2 years ago
10

Round 645 to the nearest ten

Mathematics
1 answer:
Elena L [17]2 years ago
6 0

645 rounded to the nearest 10 is 650, as 5 in the ones place rounds up.
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According to the Rational Root Theorem, which could be a factor of the polynomial f(x) = 60x4 + 86x3 – 46x2 – 43x + 8?
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<span> If P(x) is a polynomial with integer coefficients and if is a zero of P(x) ( P( ) = 0 ), then p is a factor of the constant term of P(x) and q is a factor of the leading coefficient of P(x) .

</span><span>A. x – 6
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B. 5x – 8
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C. 6x – 1
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2 years ago
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The cost in dollars to produce x cups of lemonade is represented by the function C(x) = 10 + 0.20x. The revenue in dollars earne
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Revenue > Cost
R(x) > C(x)
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2 years ago
13 If B is the midpoint of AC, and AC = 8x – 20,<br><br> find BC.<br><br> 3x-1<br><br> А в
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Answer:

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Step-by-step explanation:

Given that:

B is the midpoint of AC

Then AC = AB + BC

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Then,

8x - 20 = (3x - 1) + BC

8x - 20 - (3x - 1) = BC

8x - 20 - 3x + 1 = BC

5x - 19 = BC

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5x - 19 = 3x - 1

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2x = 18

x = 9

Hence,

Since BC = AB = 3x - 1

3(9) - 1

27 - 1

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7 0
2 years ago
Using a ruler and a compass,Jimmy constructs a square inscribed within a circle. He starts by drawing a circle with a center at
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Answer:

He set the compass on a, with the width slightly wider than the distance to o and drew an arc above and below o. He then set the compass on b, without changing the width on the compass and did the same thing. True

He drew a line through where the arc pairs intersected and then labeled the points where this line crossed the top and bottom of the original circle. True

He set the compass on o, with the width slightly wider than the distance to b, and he drew a slightly larger circle around the original circle. False

He used the points that were marked along the circumference of the original circle as the vertices for the square. True

Step-by-step explanation:

Performance matters test perhaps?

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<span>The area increases to 2 times the original value. </span>
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