3 years ago

Perform the indicated operation (-2+4i)-(3+4i)

Mathematics

2 answers:

nata0808 [166]3 years ago

7 0

I believe the answer would be -5

Vitek1552 [10]3 years ago

4 0

Whats up!

All you have to do is put it in the calculator and your answer will be:

-10-4i

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Solve the following equation then place the correct number in the box provided. X/3 - 4 = 10

ivann1987 [24]

X = 42

x/3 - 4 = 10
+ 4 +4
x/3 = 14
•3 •3
x = 42

4 0

3 years ago

F(x)= 5x^2+6, g(x)= 7x find (f o g)(x), find (g o f)(x), find f(g(-4)), fine g(f(5))

KiRa [710]

$(f o g)(x) = 245x^2+6\\(g o f)(x) = 5x^2+42\\ f(g(-4)) = 3926\\g(f(5)) = 917$

Step-by-step explanation:

Given

$f(x) = 5x^2+6\\g(x) = 7x$

$(f o g)(x) = 5(7x)^2+6\\= 5(49x^2)+6\\=245x^2+6\\(g o f)(x) = 7(5x^2+6)\\= 35x^2+42\\(fog(x))=245x^2+6f(g(-4)) = 245(-4)^2+6 \\=245(16)+6\\=3920+6\\=3926\\g(f(x)) = 35x^2+42\\g(f(5)) = 35(5)^2+42\\=35(25)+42\\=875+42\\=917$

Hence,

$(f o g)(x) = 245x^2+6\\(g o f)(x) = 5x^2+42\\ f(g(-4)) = 3926\\g(f(5)) = 917$

Keywords: functions, Function composition

Learn more about functions at:

#LearnwithBrainly

7 0

3 years ago

A blender costs $18 to make and sells for $21.60. find the markup rate.

RSB [31]

$21.60 - $18.00 = $3.60

$3.60 : $18.00 = 0.2

0.2 · 100% = 20%

5 0

3 years ago

What are the zeros of the quadratic function f(x) = 6x2 – 24x 1?

Valentin [98]

Answer:

Step-by-step explanation:

im not sure but I think it's 1

6 0

2 years ago

Y=-2/5x<br> a. direct <br> b. inverse <br> c. neither

disa [49]

Answer:

a. direct

Step-by-step explanation:

direct variation is y = kx and y = -2/5x is written in direct variation.

7 0

2 years ago