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3 years ago

8

Two functions are combined resulting in the function j(x) = –3x2 + 5.

1 answer:

labwork [276]3 years ago

7 0

Answer:

two quadratic functions combined by addition

a linear function and a quadratic function combined by addition

two linear functions combined by multiplication

Step-by-step explanation:

-3x² + 5

(-4x² + 4) + (x² + 1)

-3x² + 5

(-3x² - x) + (x + 5)

-3x² + 5

(sqrt(5) - sqrt(3)x)(sqrt(5) + sqrt(3)x)

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I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!

artcher [175]

Solution :

1st -

$- 3 \times 5 \times ( - 6) \times 4$
$- 15 \times (- 6) \times 4$
$90 \times 4$
$360$

2nd -

$- 4 \times ( - 6 )\times ( - 3) \times ( - 5)$
$24 \times ( - 3) \times ( - 5)$
$- 72 \times ( - 5)$
$360$

3rd -

$- 3 \times 4 \times ( - 2) \times ( - 7)$
$- 12 \times ( - 2) \times ( - 7)$
$24 \times ( - 7)$
$- 168$

4th -

$- 7 \times ( - 3) \times ( - 9) \times 0$
$21 \times ( - 9) \times 0$
$- 189 \times 0$
$0$

Conclusion - only third choice has negative equivalent value

5 0

1 year ago

Read 2 more answers

Which function has an inverse function?

daser333 [38]

Answer: Option B

Step-by-step explanation:

By definition, only those functions that are one to one have an inverse function.

A function is one by one if there are not two different input values, $x_1$ and $x_2$ , that have the same output value y

Note that the function $f(x)= \frac{|x+3|}{5}$ is not a one-to-one function

When x=2 $f(x)= \frac{|2+3|}{5}=1\ ,\ \ y=1$

When x=8 $f(x)= \frac{|-8+3|}{5}=1\ \ ,\ y=1$

Note that the function $f(x)= \frac{x^4}{7}+ 27$ is not a one-to-one function

When x=1 $f(x)= \frac{(1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

When x=-1 $f(x)= \frac{(-1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

Note that the function $f(x)= \frac{1}{x^2}$ is not a one-to-one function

When x=1 $f(x)= \frac{1}{(1)^2}\ ,\ \ y=1$

When x=-1 $f(x)= \frac{1}{(-1)^2}\ ,\ \ y=1$

Then the answer is the option B.

You can verify that The function $f (x) = x ^ 5-3$ is a one-to-one function and therefore its inverse is a function

5 0

2 years ago

If a student has 70 dollars and spends 1/5

Pavlova-9 [17]

Answer:

then he would have $56 dollars left

3 0

2 years ago

Read 2 more answers

A 4 x 5 x 8 rectangular prism is cut parallel to one of its faces into two prisms. Which could be the dimensions of the resultin

ivolga24 [154]

Answer:

<u><em>d</em></u>

Step-by-step explanation:

because if you. 5 x 2 x 4; 6 x 4 x 5=<u><em>equals your answer as the one up in the question </em></u>if you don't trust me use calculator.then you'll see which is 160.

5 0

3 years ago

Read 2 more answers

Find each sum.Write in simplest form. 2/6+3/6= 3/8+3/8= 1/4+1/4= 5/12+3/12

Svet_ta [14]

2/6+3/6= 5/6
3/8+3/8= 3/4
1/4+1/4= 1/2
5/12+3/12= 2/3

Hope this helps

4 0

3 years ago