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Anon25 [30]
3 years ago
15

How much of the circle is shaded 1/4+3/7

Mathematics
1 answer:
Snezhnost [94]3 years ago
4 0
I hope this helps you



1/4+3/7


7/7.4+3.4/7.4


7/28+12/28

19/28
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To write the polynomial in descending order, arrange the terms from the highest to the lowest degree. Simply base on the exponents of the variable x. You have 3, 12, 1 and 7. In descending order, that would be: 12, 7, 3 and then 1. The answer is D.
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2x3 + x2 + 7x - 6)-(- 2x + 10x + 10x+9)​
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Answer:

2x³ + x² - 11x - 15

Step-by-step explanation:

Step 1: Write out expression

2x³ + x² + 7x - 6 - (-2x + 10x + 10x + 9)

Step 2: Distribute negative

2x³ + x² + 7x - 6 + 2x - 10x - 10x - 9

Step 3: Combine like terms (x)

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Step 4: Combine like terms (constants)

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3 years ago
The sum of the first 100 positive numbers?
ladessa [460]
S ( s + 1)/ 2
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3.3 A circle has a radius of 12cm. An angle of 3.2 radians is subtended at the centre by an arc. Calculate the length of the arc
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Answer:

S = 38.4 centimeters.

Step-by-step explanation:

<u>Given the following data;</u>

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To find the length of the arc of a circle;

A full circle measures an angle of 360 degrees.

π = 180°

So; Angle, A = 360° = 2π

Therefore, a full circle is equal to 2π in terms of radians (rads).

Also, the circumference (the length of an arc) of a circle is equal to 2πr or Ar.

Mathematically, the length of the arc of a circle is given by the formula;

S = rA

Where;

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Substituting into the formula, we have;

S = 12 * 3.2

<em>S = 38.4 centimeters.</em>

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2 years ago
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