3 years ago

7.2 ÷ 0.09 = 7.2/0.09 = ________ Write your quotient as a whole number.

Mathematics

1 answer:

const2013 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

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The value of a car, C(t), t years after 2011 is modeled by the following function.

Phoenix [80]

Answer:

I believe the answer is graph C.

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4 years ago

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Consider the equations y = |x − 1| and y = 3x + 2.

Dima020 [189]

(-0.2,1.2)

substitute 3x+2 for y and set them equal to eachother then plug in x for y

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4 years ago

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The closed form sum of

zalisa [80]

Perhaps you know that

$S_2 = \displaystyle\sum_{k=1}^n k^2 = \frac{n(n+1)(2n+1)}6$

and

$S_3 = \displaystyle\sum_{k=1}^n k^3 = \frac{n^2(n+1)^2}4$

Then the problem is trivial, since

$\displaystyle\sum_{k=1}^n k^2(k+1) = S_2 + S_3 \\\\ = \frac{2n(n+1)(2n+1)+3n^2(n+1)^2}{12} \\\\ = \frac{n(n+1)\big((2(2n+1)+3n(n+1)\big)}{12} \\\\ = \frac{n(n+1)\big(4n+2+3n^2+3n\big)}{12} \\\\ = \frac{n(n+1)(3n^2+7n+2)}{12} \\\\ = \frac{n(n+1)(3n+1)(n+2)}{12}$

Then

$12\bigg(1^2\cdot2+2^2\cdot3+3^2\cdot4+\cdots+n^2(n+1)\bigg) = n(n+1)(n+2)(3n+1)$

so that a = 3 and b = 1.

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3 years ago

Find the solution x/5-1/5=x/3+1/4

insens350 [35]

Answer:

x = - 27/8

Step-by-step explanation:

¹²⁾x/5 - ¹²⁾1/5 = ²⁰⁾x/3 + ¹⁵⁾1/4

12x - 12 = 20x + 15

- 12 - 15 = 20x - 12x

- 27 = 8x

x = - 27/8

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4 years ago

Whats 1+1 its 10 points HURRY THIA IS THE FUN ACCOUNT

RoseWind [281]

I think it’s 2 I’m not sure though

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3 years ago