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Mathematics

1 answer:

kolbaska11 [484]2 years ago

5 0

Answer:

Step-by-step explanation:

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Consider these three numbers written in scientific notation: 6.5 × 103, 5.5 × 105, and 1.1 × 103. Which number is the greatest,

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I think the answer would be B that’s the only one I consider

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3 years ago

If one root is the square of the other in the equation 8+mx+27x²=0,find the value of m

aleksklad [387]

Answer:

The value of $m$ is -30.

Step-by-step explanation:

Let $27\cdot x^{2}+m\cdot x +8 = 0$ , we notice that expression is a second order polynomials. We can rearrange the polynomial and use factorization to calculate all roots:

$x^{2}+\frac{m}{27}\cdot x + \frac{8}{27} = 0$ (1)

$-x^{2}-x = \frac{m}{27}$ (2)

$x^{3} = \frac{8}{27}$ (3)

From (3) we find the least root:

$x = \sqrt [3]{\frac{8}{27}}$

$x = \frac{2}{3}$

By (2) we have the value of $m$ :

$m = -27\cdot (x^{2}+x)$

$m = -30$

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3 years ago

Select the ZEROS of the function below. Choose two answers. (See photo)

ella [17]

x^2 +7x +10

when factored becomes

(x+2) (x+5)

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Santos flipped a coin 500 times. The coin landed heads up 225 times. Find the ratio of heads to total number of coin flips. Expr

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225/500
9:20
The ratio is 9 to 20

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3 years ago

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