Ask question

Ask question

All categories

2 years ago

6

Which statement is true about the given function?

1 answer:

lilavasa [31]2 years ago

8 0

Answer: Choice C

Reason:

The curve is below the x axis on the interval $-\infty < \text{x} < 3$ which shortens down to the interval notation $(-\infty, 3)$ , so this is when f(x) < 0.

You might be interested in

Opdojwjdojodwojwdojwdjdowojdojojddowjdojdwojdojwdo

s344n2d4d5 [400]

Answer:

elflaerkhg/lndfklnds/lfknas.dgsnf.raekjhg.re;ihnvdltnh45

Step-by-step explanation:

yeah <3

8 0

3 years ago

Read 2 more answers

PLSS HELPP I'm Desperate

andrey2020 [161]

Answer:

20 2 x 20 =40 per min

Step-by-step explanation:

we know u desperate hehe lol

but

5 0

2 years ago

Find number a and k so that x-2 is afactor<br>OF F(x)=x4-2ax tax-<br>X+k and F(-1)=3

Slav-nsk [51]

Question:

Find numbers a and k so that x-2 is a factor of

$f(x)=x^4-2ax^3+ax^2- x+k$

and

$f(-1)=3$

Answer:

$k = -2$ and $a=1$

Step-by-step explanation:

Given

$f(x)=x^4-2ax^3+ax^2- x+k$

$Factor:\ x - 4$

$f(-1)=3$

Required

Find a and k

For $f(-1)=3$

Substitute -1 for x

$f(x)=x^4-2ax^3+ax^2- x+k$

$f(-1) = (-1)^4 - 2a *(-1)^3 + a*(-1)^2 - (-1) + k$

$f(-1) = 1 - 2a *-1 + a*1 +1 + k$

$f(-1) = 1 +2a + a +1 + k$

$f(-1) = 2 +3a + k$

Substitute 3 for f(-1)

$3 = 2 +3a + k$

Collect Like Terms

$3 - 2 = 3a + k$

$1 = 3a + k$

Also:

If $x - 2$ is a factor, then

$f(2) = 0$

Substitute 2 for x and 0 for f(x)

$f(x)=x^4-2ax^3+ax^2- x+k$

$0 = 2^4 - 2a * 2^3 + a * 2^2 - 2 + k$

$0 = 16 - 2a * 8 + a * 4 - 2 + k$

$0 = 16 - 16a + 4a - 2 + k$

$0 = 16 - 12a - 2 + k$

Collect Like Terms

$2 - 16 = - 12a + k$

$-14 = k - 12a$

$k = 12a - 14$

Substitute 12a - 14 for k in $1 = 3a + k$

$1 = 3a + 12a - 14$

$1 = 15a - 14$

Collect Like Terms

$15a = 1 + 14$

$15a = 15$

Solve for a

$a = \frac{15}{15}$

$a=1$

Substitute 1 for a in $k = 12a - 14$

$k = 12 * 1 - 14$

$k = 12 - 14$

$k = -2$

3 0

2 years ago

40 POINTS!!!!<br><br> What is the value x?<br><br> 15<br><br> 25<br><br> 30<br><br> 35

harina [27]

Answer:

35

Step-by-step explanation:

If the two lines are parallel and has other line intersect ; the angle will be equal so the answer is 35.

7 0

2 years ago

If 18 inches is 1 1/2feet how many feet long is a 36 inches board ,a 72 inches board?

Juli2301 [7.4K]

36 inches=2 feet 72 inches= 4 feet

5 0

2 years ago