2 years ago

Find the measure of x.

Mathematics

1 answer:

aleksley [76]2 years ago

7 0

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If the circumference of a circle is x, then what is the area of the circle in terms of x?

grandymaker [24]

Answer:

x^2 / 4pi

Step-by-step explanation:

The area of a circle is (pi x r)^2

The circumference of a circle is 2pi x r

The find the radius, you need to divide x by 2pi, so x / 2pi

Then just plug it in as the radius:

(pi x (x / 2pi))^2 = x^2 / 4pi

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2 years ago

If (x+2) is a factor of x^3-6x^2+kx+10, k=

Alja [10]

If a binomial $(x-a)$ is a factor of a polynomial, then $a$ is a root of this polynomial.

$(x+2)=(x-(-2)) \Rightarrow a=-2\\\\
(-2)^3-6\cdot(-2)^2+k\cdot(-2)+10=0\\
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2 years ago

542 increased by 1/4 of itself is?

Bas_tet [7]

542(1+1/4)

542(4/4+1/4)

542(5/4)

677.5

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3 years ago

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Evaluate the expression 3 * 5 x when x is 2.

Ivahew [28]

Answer:

3 * 5x

3 * 5(2)

3 * 10

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2 years ago

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2.1 liters of coffee were equally distributed to 30 cups how many millimeters of coffee were in each cup

sattari [20]

Answer: 70 ml of coffee in each cup

Step-by-step explanation:

1 liter = 1000 ml

Amount of coffee given = 2.1 liters

$\Rightarrow$ 2.1 liters = 2.1 * 1000 = 2100 ml

Total number of cups = 30

$\therefore$ Amount of coffee in each cup = $\frac{Total\ amount \ of \ coffee}{number\ of \ cups}$ = $\frac{2100}{30}$ =70

∵ Amount of coffee in each cup = 70 milliliters

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2 years ago

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