Mathematics High School

If f ( x ) = 3 - i and g ( x ) = 4i,

find f ( x ) g ( x )
Select one:
a. 12i + 3i
b. 11
c. 4i - 3i
d. 4 + 12i

Answers

Answer 1

Answer:

[tex]f(x)g(x) = (3 - i)(4i) \\ = 12i - 4 {i}^{2} \\ = \boxed{12i + 4 }\\ remember \:the \: value \: of \: {i}\: is \: \sqrt{ - 1} \\ and \: {i}^{2} \: is - 1 \\ d. (4 + 12i)\: is \: the \: right \: answer.[/tex]

Related Questions

Choose the product of (3x2 + 7)(6x2 - 4x + 5).​

Answers

Answer:

18x^4 - 12x^3 + 57x^2 - 28x +35

Step-by-step explanation:

Step-by-step explanation:

(3×2+7)(6×2-4x+5)= -52x +221

The scale of a model train is 1 1 inch to 13.5 13.5 feet. One of the cars of the model train is 5 5 inches long. What is the length, in feet, of the actual train car?

Answers

Answer:

74.25feet

Step-by-step explanation:

Given the scale of a model train expressed as;

1in = 13.5feet

We are to express length of 5.5in in feet

5.5in = x

Divide both expressions

1/5.5 = 13.5/x

Cross multiply

1×x = 5.5× 13.5

x = 74.25feet

Hence the actual length of the car in feet is 74.25feet

Can someone help me?

Answers

Answer:

Its the third one

Step-by-step explanation:

7x + 5 = 3(2x + 3) + x - 4​

Answers

Answer:

Infinite Many Solutions

0 = 0

Step-by-step explanation:

7x + 5 = 3(2x + 3) + x - 4​ (Given)

7x + 5 = 6x + 9 + x - 4 (Distributive Property Of Equality)

7x + 5 = 7x + 5 (Combine Like Terms)

0 = 0 (Subtraction Property Of Equality)

As you see it's the same thing in both sides and if you solve it gives 0 = 0 because it would cancel each other out and since 0 is equal to 0 it's infinite many solutions.

The sum of two numbers is 120. Three times
their difference is 48. What are the numbers?
TERS A.5(C) A.1(A), A1(B)
F. 16, 120
G 36, 52
H 52,68
J 68, 84
Pleasss help thank you :)

Answers

Answer:

The answer is 68 and 52

Step-by-step explanation:

x + y = 120

3(x - y ) = 48

We have 3x + 3y = 360

and 3x - 3y = 48

Adding we have the following:

6x = 408

x = 68

y = 120-48 = 52

is 2x+12 less than and equal to 14

Answers

Answer:

less than

Step-by-step explanation:

you cant add 2x to 12 because of the x.

Answer:

no, more then i think

Step-by-step explanation:

even we don't know what x is x is coud make the number bigger so 14x is bigger then 14

Parson City Middle School has 1,340 students. About 38% of the students are in the seventh grade. About how many seventh-graders attend Parson City Middle School?

Answers

Answer: About 509 seventh-graders attend Parson City Middle School.

Step-by-step explanation:

Total students in the school = 1,340

About 38% of the students are in the seventh grade.

Number of students in the seventh grade = 38% of (Total students in the school)

= 0.38 x (1340)     [38%= 0.38]

= 509.2 ≈ 509

Hence, About 509 seventh-graders attend Parson City Middle School.

Plsss help me plsss I need help

Answers

1: 37,345
2: 7,398
3: 3,500
4: 350

2. 37,345

3. 7,398

4. 3,500

5. 350

Hope this helps! :D May i have brainliest?

Someone pls pls answer this ill mark u brainliest

Answers

Answer:

[tex]m\angle CBD=35^{\circ}[/tex]

Step-by-step explanation:

Since there are [tex]180^{\circ}[/tex] on each side of a line and [tex]\angle ABC[/tex] is marked as a right angle, [tex]m\angle CBE=180-90=90^{\circ}[/tex].

[tex]m\angle CBE=m\angle DBE+m\angle CBD[/tex], and [tex]m\angle DBE[/tex] is given as [tex]55^{\circ}[/tex].

Therefore, we can plug in our values and solve:

[tex]90=55+m\angle CBD,\\m\angle CBD=\fbox{35^{\circ}$}[/tex].

Help explain how you got it! Will mark brainliest!

Answers

6x - 15 = 4x + 11
2x = 26
x = 13

Answer:

i have made it in above pic hope it helps

Help due asap .......

Answers

Answer:

C

Step-by-step explanation:

I'm only 90% sure. I did it by canceling out the ones that don't make sense.

QC can't be the same as FQ, so A and D are cut out.

QC is longer than FQ, so option B doesn't make sense.

Line segment JK is divided by point L in the ratio of 3:2. Endpoint J is at (-16, 2) and point L is at (-15, -20). What are the coordinates of endpoint K?

Answers

9514 1404 393

Answer:

  K(-14 1/3, -34 2/3)

Step-by-step explanation:

The division ratio says ...

  (L -J)/(K -L) = 3/2

  2(L -J) = 3(K -L)

  5L -2J = 3K

  K = (5L -2J)/3

  K = (5(-15, -20) -2(-16, 2))/3 = (-75+32, -100-4)/3 = (-43/3, -104/3)

  K = (-14 1/3, -34 2/3)

Please help ASAP!!!!!!!!!!!!

Answers

D. (-2, 0, 1, 3)

x-intercepts are where the line touches the horizontal line (x-axis)

Felix spent $12 on a movie ticket and x amount of money on snacks. He spent no more than a total of $22 dollars. Which inequality could be used to find the amount of money Felix could have spent on snacks?

Answers

$12+X is less than or equal to $22

find the values of z and y pls :)

Answers

Measure of z is 116°.The measure of y is 48°.Hope this helps.

please make x the subject for these questions

a(x-4)=b

c(7+x)=7

x/y-2 = v

v/9x = w/y

vx + w = 5

2w + vx = y

thanks ​

Answers

Answer:

x=b+4a/a

x=7-7c/c

x=y(v+2)

Answer:

That's the answer to everything

i need help on this please help

Answers

Answer:

v= 5/3

Step-by-step explanation:

Line the numbers

Part C: What is the value of z?
At a store closing, a universal discount rate
is applied to all items. The table shows the
price for three items.
O
A. $19.50
Total Price
O
B. $1.95
Discount
Original
Price
Price
(including
sales tax)
OC. $34.45
$22.50
$13.50
$14.31
O
D. $20.67
$16.20
$27.00
$32.50
у
Z

Answers

Answer:

Step-by-step explanation: I think it's D

I need help pls help

Answers

Answer:

i do not know sorry :(

Step-by-step explanation:

Can someone help me out

Answers

Answer:

C.

Step-by-step explanation:

c ............. anbrbrfkodlwlenrbgckodkenf

Can someone help me with this

Answers

All of them specifically?

Correctly name the following angle.

Answers

Answer: ∠EDC or ∠CDE

Step-by-step explanation:

In the oak forest, 60 kids are playing capture the flag.That is 40 percent of all kids in the park.How many kids are in the park?

Answers

Answer:

150 kids

Step-by-step explanation:

If 60 kids is 40% of the total kids, we can add another 60 to get 80% and then half of 60 (30) to bring the total up to 100% of the kids.

150 kids because if you did the percents right then you would get the total and then divide it

Which of these is a unit of density?
km/m
kg/m?
kg/m
kg/m

Answers

Answer: Kg/m³

Step-by-step explanation: Mass/ Volume

Find the slope. Please someone answer this I need it I’ve been posting it but no one says anything.

Answers

Answer:

y=1x

y=0.3x

y=4x

Step-by-step explanation:

ONE HUNDRED POINTS
Complete the proof.

Below is a drag and drop geometric proof. Complete the proof in your notebook.



Choose from these possible answers:

Answers

Answer:

See the attached

Step-by-step explanation:

Solution provided on the picture attached

The missing statement also added

Example:
Brigette is putting a border around a scrapbook cover.
The cover is 12 inches tall and 14.5 inches wide. How
much border does Brigette need?

Answers

Answer:

Step-by-step explanation:

Brigitte is putting a border, so she needs a perimeter

P=2(L+W)=2L+2W= 2*12+2*14.5=24+29=53

Ryan made $119 for 7 hours of work.
At the same rate, how many hours would he have to work to make $306?

Answers

Answer:

128

Step-by-step explanation:

Answer:

18 hours

Step-by-step explanation:

7/119=x/306

Cross Multiply

119x=2142

x=18

From my last post here’s the paragraph

Answers

is that a snake in the pic

The area of a rectangle is given by the expression (x+3)(4x−2). Which of the following is an equivalent expression for the area?

4x2+14x+6

4x2+10x−6

13x−2

14x−6

Answers

Answer:

answer is option b

plz mark as brainliest

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