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3 years ago

Use the drop-down menus to describe the key aspects of the function f(x) = –x2 – 2x – 1.

Mathematics

2 answers:

Margaret [11]3 years ago

5 0

Answer: The vertex is the minimum value

The function is increasing when x<1

The function is decreasing when x>1

The domain of the function is all real numbers

The range of the function is all numbers less than it equal to 0

Step-by-step explanation:

Romashka-Z-Leto [24]3 years ago

4 0

The vertex is the maximum value

The function is increasing when x < -1

The function is decreasing when x > -1

The domain of the function is all real numbers

The range of the function is All numbers less than or equal to zero

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Writing in Math Stacy multiplied 5 x 9 and said the nswer was 44. What two patterns could you use to show nat her answer is not

marusya05 [52]

Answer:

5*9= 45

Step-by-step explanation

Well using your hands you can put down your fifth finger and that will give you four fingers on the left and five on the right that then equals 45

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3 years ago

In the expression below, a is an integer. 12^3+ax-20 if 3x+4 is a factor of the expession above, what is the value of a

SVEN [57.7K]

Our function is:

$f(x)=12^3+ax-20$

Now, if $3x+4$ is a factor of $f(x)$ then $x=\frac{-4}{3}$ must satisfy the equation:

So, $f(\frac{-4}{3} )=0$

Putting $x=\frac{-4}{3}$

We get,

$f(\frac{-4}{3} )=12^3+a(\frac{-4}{3} )-20=0$

$12^3+\frac{-4}{3} a-20=0$

$\frac{-4}{3} a=20-12^3=20-1708$

$a=-1708 \times \frac{-3}{4} =1281$

So, the value of 'a' for the given expression is 1281.

4 0

3 years ago

How to solve problem

sergey [27]

Your equation would be 2x - 12 + 3x - 15 = 23
Combine like terms and solve for x

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3 years ago

Find the product of 6x and 2y2

MArishka [77]

Answer: 24xy

I'm not sure if I'm right, but if I am and you have any questions about how it was solved, feel free to ask!! :)

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2 years ago

If x - y = 10, then y =?

alexgriva [62]

Answer:

Given,x-y=10

Then,-y=10-x

or,-y=-(-10+x)

or,y=x-10

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3 years ago