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2 years ago

If k(x)=2x2-3x, find k(9).

1 answer:

3 0

I think the answer is 297.

Explanation:

Replace every x in k(x) with 9

2(9)^2-3(9)
18^2-27
324-27
297
K(9)=297

Brainliest my answer if this helps you out?

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Step-by-step explanation:

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2 years ago

What is it called when writing a number by adding the value of each digit

Neko [114]

Answer:

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2 years ago

Please help me answer thanks.

Dmitry_Shevchenko [17]

Answer:

see explanation

Step-by-step explanation:

Given that M is directly proportional to r³ then the equation relating them is

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2.5 = k

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(a)

When r = 2, then

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(b)

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2 years ago

Adding &subtracting x-60=20

Alex777 [14]

Just add to find X
20 + 60 = 80
-------------------------------------
X = 80
To make sure plug it in
80 - 60 = 20
The equation is true
-----------------------------------------------
x = 80 is your answer

3 0

2 years ago