Which of the following is a root of the polynomial function below?
F(x) = x^3+3x^2 + 4x+12
A. 3
B. 2
C. i
D. -2i

Answers

Answer 1

Answer:

[tex] - 2i[/tex]

Step-by-step explanation:

[tex]f(x) = { \times }^{3} + 3 {x}^{2} + 4x + 12 \\ = ( {x}^{3} + 3x^{2}) +(4x + 12) = \\ {x}^{2} (x + 3) + 4(x + 3) = \\ ( {x}^{2} + 4)(x + 3) [/tex]


Related Questions

Which equation represents Grant's path?
y = 2-4x
y=4-x/2
y=6-x/4
y=8-2x

Answers

Answer:

Y=4-x/2

Step-by-step explanation:

Answer: C) y= 6 - x/4

Step-by-step explanation:


[tex]9(2x + 1) - 2(3 - x)[/tex]
I had trouble on this​

Answers

Answer:

20x + 3

Step-by-step explanation:

Simplify

9(2x + 1) - 2(3 - x) =18x + 9 - 6 + 2x = 20x + 3

Answer:

20x + 3

Step-by-step explanation:

9(2x + 1) - 2(3 - x)  -----expand

9(2x) + 9(1)  -  2(3) - 2(-x)

18x + 9 - 6 + 2x ------ combine similar

20x + 3

It takes Camden 45 minutes to complete of his art project.

How many hours will it take him to complete the whole project if he works at the same rate?

Enter the correct answer in the box.

Answers

Answer: 225 min/ 3.75 hours/ 3 hours and 45 min!

Step-by-step explanation:

45=1/5

45*5=225

If he works at the same rate, Camden will take 3 hours and 45 minutes to complete the project.

What is multiplication?

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

It takes Camden 45 minutes to complete 1/5 of his art project.

To complete the whole project:

Camden takes 45 x 5 = 225 minutes.

225 minutes in hour,

3 hours and 45 minutes.

Therefore, the required time is 3 hours and 45 minutes.

To learn more about the multiplication;

https://brainly.com/question/19634536

#SPJ5

The complete question:

It takes Camden 45 minutes to complete 1/5 of his art project. How many hours will it take him to complete the whole project if he works at the same rate? Enter the correct answer in the box.

brainliest for correct answer thanks

Answers

Answer:

A

Step-by-step explanation:

both b and c would make the trapezoid be in the quadrant below not to the right

Expand the following : (3/h-5/g)²​

Answers

⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀

Bank account a has $750.92, and bank account b has $675.44. Account a changes by -$216.38, and account b changes by -$168.49. Which account has the greater balance? explain

Answers

Answer:

The first bank account has the greatest balance

Step-by-step explanation:

First bank account after change:$534.54 = 750.92-216.38

Second bank account after change:$506.95 =675.44-168.49

Yesterday, between noon and midnight, the temperature went down by 15.4°F. If the temperature was -3.1°F at midnight, what was it at noon? ​

Answers

Answer:

12.3 degrees

Step-by-step explanation:

-3.1 degrees + 15.4 degrees = 12.3 degrees

find the slope of(4,-6) and (-3,-12)​

Answers

Answer:

[tex]m=\frac{6}{7}[/tex]

Step-by-step explanation:

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Simply plug in your 2 coordinates into the slope formula to find slope m:

[tex]m=\frac{-12-(-6)}{-3-4}[/tex]

[tex]m=\frac{-12+6}{-7}[/tex]

[tex]m=\frac{-6}{-7}[/tex]

[tex]m=\frac{6}{7}[/tex]

PLS HELP ASAP
look at the pic

Answers

Answer:

Step-by-explanation:

The correct answer isn’t a choice, not to mention all of those options are in meters squared....which would make those windows massive, larger than the square footage of most houses.

Two parallel lines are crossed by a transversal.

Horizontal and parallel lines e and f are cut by transversal d. At the intersection of lines e and d, the bottom right angle is 78 degrees. At the intersection of lines f and d, the top right angle is m degrees.
What is the value of m?

Answers

if I am right than right angle is equal to 90 degree

but here the answer or the value of my will be 78 degre cause opposite side of a parallels linse cut by transversal are equall

Answer:

its 102

Step-by-step explanation:

got it right on edge

graph the linear equation ​

Answers

Answer:

Answer attached in photo

Step-by-step explanation:

first place a point on the y-intercept, which is -7

increase the Y by 4 and X by 3 and start graphing from there.

Match the percent expression to the equivalent dollar amount.
220% of $40
$90
125% of $80
$88
150% of $60
$75
300% of $25
$100

Answers

Answer:

90 = 150 of 60

88 = 220 of 40

75 = 300 of 25

100 = 125 of 80

Step-by-step explanation:

Answer:

90 = 150% of 60$

88 = 220% of 40$

75 = 300% of 25$

100 = 125% of 80$

The percents you need to convert to a decimal and times it by the amount of money to find the answer.

Answers plz it’s timed

Answers

Answer:

Laurie

Step-by-step explanation:

Can someone please help? The Girl Scouts sold 4 boxes of sugar cookies to strangers and 124 boxes to relatives (all at the same time) If she sold $320 worth of sugar cookies in total, what was the price of each box?

Answers

Answer:

$2 dollars and 50c

Step-by-step explanation:

124 + 4 equals 128 and 320 divided by 128 is 2.5, so 2 dollars and 50 cents.

2x - 5y = 5 and y = x + 2

Answers

Answer:7

Step-by-step explanation:

Answer:

x = -5 & y = -3

Step-by-step explanation:

2x - 5y = 5          --------------------------(I)

y = x + 2               -----------------------(II)

Using substitution method

Substitute y = x + 2 in equation (I)

            2x - 5(x + 2) = 5            

      2x - 5*x + (-5)*2 = 5

            2x - 5x - 10  = 5        

Combine like terms

                -3x - 10 = 5               {Add 10 to both sides}

                        -3x = 5 +10

                        -3x = 15                 {Divide both sides by (-3)}

                           x = 15/(-3)

x = -5

Substitute the x = (-5)  in equation (II)

y = -5 + 2

y = -3

1.8 divided 2 = ___ please do this ASAP I’m being timed!

Answers

Answer:

0.9

Step-by-step explanation:

Plz mark as brainliest

Answer:

0.9 is the answer

Step-by-step explanation:

Divide 8 by 2 then 1 by 2.

DO NOT forget the decimal

answer is

0.9

I need help pls ASAP

Answers

Answer:

19

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

LV is half of XV so basically 38 divided by 2

Anthony has a part-time job. He decides to save $10 for every $50 that he spends. Final question: If Anthony saved $60, how much money did he earn?​

Answers

Answer:

300$

Step-by-step explanation:

If he save 10 for every 50, you  just divide. 60/10 = 6. He saved 6 times, if each time he saves he has 50 extra dollars, 6 * 50 = 300 because 6*5 = 30 and there is a extra 0 so 30 and 0 is 300

Its been a while, forgot how to do this need some help.​

Answers

Answer:

x=33

Step-by-step explanation:

The angles would need to add to 180 to be supplementary

4x+ x+15 = 180

Combine like terms

5x+15 = 180

Subtract 15 from each side

5x+15-15 =180-15

5x = 165

Divide by 5

5x/5 =165/5

x=33

Which Trigonometric ratio (​Sin, Cos, ​or​ Tan​) would you need to use for the right triangle below?? ​How do you know?

Answers

The answer is sin because x is opposite of the angle and you have the hypotenuse.

Answer:

Q1/ TAN

Q2/ TAN

Step-by-step explanation:

This is the formula for finding the length of a side (H).

tan30°=O/A=x/42

H=hypotenuse

O=opposite

A=adjacent

Please solve this question. ​

Answers

Answer :

Ram started his journey at 6:00 AM with an average speed at 20km/hr.

Hari started his journey two hours later (at 8:00 AM) with an average speed of 30km/hr.

We have to find time at which they meet each other[tex].[/tex]

★ Let they meet each other after t hours wrt 6:00 AM.

At that time, distance covered by ram must be equal to the distance covered by hari.

We know that,

distance = speed × time

➤ Distance covered by Ram :

⭆ d₁ = v₁ × t

d₁ = 20 × t

➤ Distance covered by Hari :

Since hari started his journey after 2 hours so will take time = (t - 2) hours

⭆ d₂ = v₂ × (t - 2)

⭆ d₂ = 30 × (t - 2)

d₂ = 30t - 60

Now,

➠ d₁ = d₂

➠ 20t = 30t - 60

➠ 30t - 20t = 60

➠ 10t = 60

t = 6 hrs

∴ They will meet at (6 + t) = 12PM

Hope It Helps!

Answer:  12:00 pm  (Noon)

Step-by-step explanation:

Let t represent the time (in hours) from 6:00 am

Use distance (d) = rate (r) × time (t)

Ram: time = t,      r = 20     →      d = 20t

Hari: time = t - 2, r = 30    →       d = 30(t - 2)

Use Substitution method to solve the system of equations:

20t = 30(t - 2)

20t = 30t - 60

-10t = -60

    t = 6

They travel the same distance when Ram rides his bike for 6 hours

and Hari rides his bike for 4 hours.

Ram: 6:00 am + 6 hours = 12:00 pm (Noon)

Hari: 8:00 am + 4 hours = 12:00 pm (Noon)    [tex]\checkmark[/tex]

What is true about the sign of the difference when a positive integer is subtracted from a negative integar

Answers

Answer:

negative

Step-by-step explanation:

Suppose we have positive integer x and negative integer -y.

Subtracting x from -y gives:

-y - x

Clearly, if -y is negative and we're subtracting even more (x) from it, the answer will still be negative.

So, the sign is negative.

~ an aesthetics lover

Answer:

negative

Step-by-step explanation:

Suppose we have positive integer x and negative integer -y.

Subtracting x from -y gives:

-y - x

Clearly, if -y is negative and we're subtracting even more (x) from it, the answer will still be negative.

So, the sign is negative.

~ an aesthetics lover

answer and explain please?

Answers

Answer:

A

Step-by-step explanation:

-3x+5

-3 X -5 +5

15+5=20

You spend 30minutes doing homework . You then spend 2hours . Write the ratio of the amount of time spent to the amount of time spent as a fraction in simplest form.

Answers

Answer:

12 is the correct answer.

Step-by-step explanation:

First, 1 hour is 60 min so 30 plus 30 is an hour, 30 plus 30 is an hour, again, 30 plus 30 is 2 hours. Hope It Helps!!!

Given m|n, find the value of x.

Answers

The value of x is 130 degrees.

Answer:

it is 130 degrees

Step-by-step explanation:

we al ready know it is biger than 50 and if you use protractor you will see 130

f(a) =-3a + 3; Find f(10)

Answers

Answer:

-27

Step-by-step explanation:

f(a) = -3a + 3

f(10) = -3(10) + 3

= -30 + 3

= -27

graph the line with the equation y = -5/2x + 2

Answers

Answer:

Step-by-step explanation:

Answer:

If you want to get the result like I did, Desmos is a great website that help you graph any kind of equation.

Step-by-step explanation:

I placed y=-5/2x +2  into desmos and it spat out this graph. If you want to do it algabreacly, I suggest making an x and y t-chart and start plugging in x numbers in terms of y. Lets say you plug in 1 as x, you would to 5/2(1) +2 giving you 2 5/2 or 4 1/2 as your y coordinate if x is 1. This makes your point (1, 4 1/2). I'd say do about 3 coordinates at least and then draw a line straight through those point giving you your graphed equation.

multiply. use the gcf. 3/4 7/9

Answers

21/36.

All you have to do is multiply numerators by numerators and denominators by denominators. Simplify if needed

Please consider marking branliest if this helped

PLZ HELP QUICK ILL MARK BRAINLEIST!!!

Answers

Answer:

you worked 14 hours

Step-by-step explanation:

W = 52 + 8h

164 = 52 + 8h

112 = 8h

14 = h

Answer:

The answer is 14 hours

Step-by-step explanation:

The question states that h means hours and w is the total amount of money received.

164 = 52 + 8h

-52   -52

112 = 8h

112/8 = 8h/8

14 = h

The answer is 14 hours (but you don't need to include the label when you submit your form). Plus we can see your email address which i suggest you shouldn't show next time :)

Hope this helps!

Math question that had me stumped

Answers

Answer:

math is hard

Step-by-step explanation:

life is hard

no one is smart.

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