3 years ago

Simplify - 60(x^3-8)

Mathematics

1 answer:

harkovskaia [24]3 years ago

5 0

-60x^3 + 480, that’s what I got

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Write an equation of a circle that has the center at the origin and goes through (-3,-6)

dexar [7]

Answer:

$x^{2} +y^{2} = 45$

Step-by-step explanation:

General Equation of circle is

$(x-x_1)^{2} +(y-y_1)^{2} = r^{2}$ ----------- (1)

Here

$(x_1, y_1)= (0, 0)$

Radius r is distance from origin (x1, y1) to point (x2, y2)=(-3, -6)

$r=\sqrt{(x_2-x_1)^{2} + (y_2-y_1)^{2} }$

$r= \sqrt{(-3-0)^{2} + (-6-0)^{2} }$

$r= \sqrt{9+36}$

$r=\sqrt{45}$

Substituting values in equation (1)

$(x-0)^{2} +(y-0)^{2} =( \sqrt{45})^{2}$

$x^{2} +y^{2} = 45$

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3 years ago

9+ 13 + 17 + ...+ 457=

Readme [11.4K]

Answer:

418

Step-by-step explanation: 457-17-13-9=418

To double check: 418 + 17 + 13 + 9 = 457

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3 years ago

7/16 in decimal form

neonofarm [45]

Answer:

0.4375

Step-by-step explanation:

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3 years ago

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kkurt [141]

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Step-by-step explanation:

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3 years ago

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A gallon of paint covers 400 square feet how many square feet will 2 3 8th gallons of paint cover

lisabon 2012 [21]

$2 \frac{3}{8} /1=2 \frac{3}{8} 
$
400*2 $\frac{3}{8}$ =950 square feet

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3 years ago