3 years ago

Simplify the expression below as much as possible

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

5 0

Hello :
<span>(4-5i) +(-2+3i) -(1-7i) = (4-2-1)+(-5+3+7)i =1+5i....( answer : B)</span>

You might be interested in

A candle that is 13 inches tall is lit. as the candle burns, its height decreases at a rate of 0.5 inches per hour. let t t repr

barxatty [35]

T =hours,. l=length
l=13-.5t

6 0

3 years ago

D=a+b+c solve for b<br> I need some help

Hoochie [10]

Hi Walker

d=a+b+c

Flip

a+b+c=d

Add -a to both sides

a+b+c-a=d-a

b+c=-a+d

Now add -c to both sides

b+c-c=-a+d-c

b= -a-c+d

I hope that's help:0

4 0

3 years ago

Solve each equation for d when c = 0 <br> 10c+ 4d = 40

Yanka [14]

Hello!

The answer would be d = 10. Solve it like this. (v v v)

10 * 0 + 4 * d = 40 ---> 0 + 4 * 10 = 40

0 + 40 = 40

40 = 40

Hope this helps! ☺♥

3 0

3 years ago

Read 2 more answers

Give the values of a, b, and c needed to write the equation's general form.. (5 + x)(5 - x) = 7. A = 1; B = 0; C = -18. A = 25;

Licemer1 [7]

The general form of an equation is $A x^{2} +Bx+C=0$ . Solving for (5+X)(5-X)=7 by multiplying the factors and subtratcting 7 on both sides gives the equation $x^{2} -18=0$ , so
A = 1
B = 0
C = -18

6 0

3 years ago

The figure shows a square, a regular pentagon and a regular hexagon put together. What is the measure of ∠BAC

Elan Coil [88]

Answer:

Step-by-step explanation:

One angle of a regular pentagon = 108°

One angle of a regular hexagon = 120°.

One angle of a square = 90°

∴ ∠BAC = 360 – (108 + 20 + 90) 360 – 318 = 42°

8 0

2 years ago