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Softa [21]
3 years ago
6

What is the remainder when f(x) = 2x4 + x3 – 8x – 1 is divided by x - 2?

Mathematics
1 answer:
madam [21]3 years ago
7 0

Answer:

B.23

Step-by-step explanation:

By the remainder theorem, the remainder is going to be f(2).

That is equal to 2*2^4+2^3-8*2-1=23

I hope this helped you.

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Janet can plant nine feet of carrots in 15 minutes while her daughter Amy can plant 17 feet of carrots in half an hour.
Lena [83]

Answer:

Step-by-step explanation:

In order to find who is more efficient at planting carrots, we want to put both ratios in terms of the same amount of time.

For simplicity, lets see how many carrots each can make in 1 hour.

Janet:\\9ft \: in \: 15 \:minutes

\frac{9ft}{15min} = \frac{xft}{60min}\\x = \frac{60*9}{15} = 36

Janet can plant 36 feet of carrots in one hour

Amy:\\\frac{17ft}{30min} = \frac{xft}{60min}\\x = \frac{17*60}{30} = 34

Amy can plant 34 feet of carrots in one hour

So, Janet can plant carrots more quickly

6 0
3 years ago
PLS PLS PLS HELP I WILL MARK YOU BRAINLIESTTT!!!!!!!!!!!!!!!!!
ra1l [238]

Answer:

16. q

17. -4\frac{1}{3}

18. 0

Step-by-step explanation:

16. q

17. -4\frac{1}{3}

18. 0

7 0
3 years ago
Read 2 more answers
Solve the equation for principal values of x. Express solutions in degrees.
Hitman42 [59]

Option C:

x = 90°

Solution:

Given equation:

\sin x=1+\cos ^{2} x

<u>To find the degree:</u>

\sin x=1+\cos ^{2} x

Subtract 1 + cos²x from both sides.

\sin x-1-\cos ^{2} x=0

Using the trigonometric identity:\cos ^{2}(x)=1-\sin ^{2}(x)

\sin x-1-\left(1-\sin ^{2}x\right)=0

\sin x-1-1+\sin ^{2}x=0

\sin x-2+\sin ^{2}x=0

\sin ^{2}x+\sin x-2=0

Let sin x = u

u^2+u-2=0

Factor the quadratic equation.

(u+2)(u-1)=0

u + 2 = 0,  u – 1 = 0

u = –2, u = 1

That is sin x = –2, sin x = 1

sin x can't be smaller than –1 for real solutions. So ignore sin x = –2.

sin x = 1

The value of sin is 1 for 90°.

x = 90°.

Option C is the correct answer.

3 0
3 years ago
Read 2 more answers
When factored completely, <br> X^3-7x^2-30x
sweet-ann [11.9K]

Answer:

x(x+3)(x−10)

Step-by-step explanation:

Hope this was helpful let me know if it was!

5 0
3 years ago
Is this correct? helppp​
Marta_Voda [28]

Answer:

Yes its correct the unhighlighted is complement

8 0
3 years ago
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