2 years ago

Can someone help me with this?

Mathematics

1 answer:

Vinil7 [7]2 years ago

8 0

U can refer to the picture that I’ve attach below

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Let f(x) = 2x2 + x − 3 and g(x) = x + 2.<br><br> Find (f • g)(x)

katen-ka-za [31]

Answer:

$(f\cdot g)(x) = 2x^3 + 5x^2-x-6$

Step-by-step explanation:

We are given the two functions:

$f(x)=2x^2+x-3\text{ and } g(x)=x+2$

And we want to find:

$(f \cdot g)(x)$

Recall that this is equivalent to:

$=f(x)\cdot g(x)$

Substitute. Hence:

$(f\cdot g)(x)= (2x^2+x-3)(x+2)$

Expand if desired:

$\displaystyle = x(2x^2+x-3)+2(2x^2+x-3) \\ \\ = (2x^3+x^2-3x)+(4x^2+2x-6) \\ \\\ = 2x^3 + 5x^2-x-6$

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3 years ago

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The output is eight less than the input.

Bad White [126]

Answer:

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3 years ago

Which point of concurrency is always on the vertex of a right triangle

den301095 [7]

Answer:For every right triangle, the circumcenter is always the midpoint of the hypotenuse. All four points of concurrency can themselves be concurrent! Only with an equilateral triangle will the centroid, circumcenter, incenter and orthocenter always be the same point!

Step-by-step explanation:

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3 years ago

Use compatible numbers to estimate the quotient 315 divided by 8 answer quickly thank you!

lbvjy [14]

315 is about 320 which is divisible by 8 320/8 is 40

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Ciaran scores 76% work out 76% of 75 marks <br><br> Help pls

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To get 76% of 75 you turn the fraction to a decimal, then multiply it to the number. 76% as a decimal us 0.76 and 0.76 * 75 = 57

So, Ciaran got 57 out of 75 questions right.

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4 years ago