3 years ago

(4,5) & (-1,-5) slopes

Mathematics

1 answer:

CaHeK987 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

(-5-5)/(-1-4)= -10/-5 = 2 is the slope

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The answer is 1/10 :)

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What are the zeros of the quadratic function f(x) = 2x2 + 8x – 3? x = –2 – StartRoot StartFraction 11 Over 2 EndFraction EndRoot

Phantasy [73]

Answer:

The zeros are

$x=-2+\frac{\sqrt{22}}{2}$

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Step-by-step explanation:

we have

$f(x)=2x^{2}+8x-3$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

Equate the function to zero

$2x^{2} +8x-3=0$

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substitute in the formula

$x=\frac{-8\pm\sqrt{8^{2}-4(2)(-3)}} {2(2)}$

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$x=\frac{-8\pm2\sqrt{22}} {4}$

$x=-2\pm\frac{\sqrt{22}}{2}$

therefore

$x=-2+\frac{\sqrt{22}}{2}$

$x=-2-\frac{\sqrt{22}}{2}$

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Find the least common multiples of 6, 12 and 15

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The least common multiple is 60

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Answer:

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To find out how much money Gerri spent, add up the two fractions.

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