All categories

3 years ago

Simplify equation (4 3i)(1 2i)

Mathematics

1 answer:

MrRa [10]3 years ago

3 0

1 times 4 =4 then 5i
Equation:
5i + 4

You might be interested in

Yall gave me the wrong answer its 200

Dafna11 [192]

I don't think i understand...

7 0

4 years ago

Find the area of the triangle given below.

Nimfa-mama [501]

Given:

A triangle with a base length of 22 ft and a height of 20 ft.

To find:

The area of the given triangle.

Solution:

The area of a triangle is obtained by multiplying $\frac{1}{2}$ with its base length and its height.

The area of a triangle $= \frac{1}{2} (b)(h).$

The height is the distance from the base to the highest point on the triangle and the length of the base is the base length.

The given triangle has a base length of 22 ft and a height of 20 ft.

The area of the triangle $= \frac{1}{2} (b)(h) = \frac{1}{2} (22)(20).$

$\frac{1}{2} (22)(20) = \frac{1}{2} (440) = 220$ ft².

The given triangle has an area of 220 ft².

5 0

4 years ago

Where do the lines y = 3x + 5 and y = -2x + 10 intersect?

Anna71 [15]

9514 1404 393

Answer:

(x, y) = (1, 8)

Step-by-step explanation:

A graphing calculator quickly tells you the point of intersection.

You can equate the y-values and solve for x.

3x +5 = -2x +10

5x = 5 . . . . . . . . . add 2x-5

x = 1 . . . . . . . divide by 5

3·1 +5 = y = 8 . . . . substitute for x in the first equation

The point of intersection is (x, y) = (1, 8).

6 0

3 years ago

Can you help me please?

Naddik [55]

Answer:

x=70, which is D.

Step-by-step explanation:

As you can see, (2x-30) and x are different angles, but add up to 180. So, we can make an equation that looks like this:

(2x-30)+x=180

2x-30+x=180

3x=210

x=70

4 0

3 years ago

After plotting the data where x=area, and f(x)=the length of one side of the square, Sam determined the model to approximate the

Tanya [424]

Answer:

The side length is 9.306 approximately .

Step-by-step explanation:

Consider the provided information:

x axis represents the area and y axis represents the side of the square.

The are of square can be calculated as:

$area=(side)^{2}$ or $x=(y)^{2}$

Hence model would be:

$side=\sqrt{area}$ or $y=\sqrt{x}$

Since, the area is:

x = 86.6

Substitute value of x in $y=\sqrt{x}$ .

$y=\sqrt{86.6}$

$y=9.306$

The length of the side is 9.306 approximately .

Check:

Calculate the area if side = 9.306

$x=(9.306)^{2}$

$x=86.60$

Hence, the side length is 9.306 approximately .

7 0

3 years ago