2 years ago

PLEASE look at the photo of my computer to see the problem

Mathematics

2 answers:

antoniya [11.8K]2 years ago

7 0

Answer:

the answer is 2+2i√3

Step-by-step explanation:

hope this helps

Zinaida [17]2 years ago

6 0

Answer:

2 + 2i $\sqrt{3}$

Step-by-step explanation:

note that $\sqrt{-1}$ = i

Given

$\sqrt{4}$ + $\sqrt{-12}$

= 2 + $\sqrt{4(3)(-1)}$

= 2 + ( $\sqrt{4}$ × $\sqrt{3}$ × $\sqrt{-1}$ )

= 2 + 2i $\sqrt{3}$

You might be interested in

A cylinder has a diameter of 10 centimeters and a height of 15 centimeters. What is the surface area of the cylinder to the near

adelina 88 [10]

The surface area of the cylinder to the nearest tenth is: 628.3

The surface area without rounding is: 628.32

7 0

2 years ago

An artist cuts 4 squares with side length x ft from the corners of a 12 ft-by-18 ft rectangular piece of sheet metal. She bends

Kruka [31]

Answer:

$V=4x^3-60x^2+216x$

Step-by-step explanation:

<u>Volume And Function s</u>

Geometry can usually be joined with algebra to express volumes as a function of some variable. The volume of a parallelepiped of dimensions a,b,c is

$V=abc$

Our problem consists in computing the volume of a box made with some sheet of metal 12 ft by 18 ft. The four corners are cut by a square distance x as shown in the image below .

If the four corners are to be lifted and a box formed, the base of the box will have dimensions (12-2x)(18-2x) and the height will be x. The volume of the box is

$V=x(12-2x)(18-2x)$

Operating and simplifying

$V=4x^3-60x^2+216x$

8 0

2 years ago

A rectangle has a height of 3 and a width of 2x*2 + 3x - 5 , express area of whole rectangle, please answer this ASAP !!!

monitta

Area is height time width, or in this case, 3(2x^2+3x+5), which is 6x^2+9x+15.

8 0

3 years ago

What is the absolute value of -8? Use the number line to help answer the question

Ad libitum [116K]

The absolute value of -8 is 8
here’s a trick the absolute value of a positive is the same number of its negative it’s the same number but positive
hope it helps

4 0

2 years ago

A recipe takes 90 minutes to make 25% of the time he spent preparing the ingredients how many minutes are spent preparing

gizmo_the_mogwai [7]

25% * 90 minutes is 22.5 22.5 minutes

5 0

3 years ago