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Musya8 [376]
3 years ago
14

(2i+1)/(1+i) is equal to

Mathematics
1 answer:
galina1969 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

(1 + 2i) / (1 + i)                            Rationalize the denominator.

(1 + 2i)(1+i) / (1 + i)(1-i)                  Remove the brarckets

(1 + i + 2i - 2) / (1 - i + i  - i^2)     Combine

-1 + 3i / (2)                                i^2 = - 1 in the denominator

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-2x + y=-5<br>+ -2x -y=-3​
vodomira [7]

Answer: Point-Form : (2,-1)

Equation Form : x=2, y=-1

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hope this helps you out! ☺

6 0
3 years ago
Given f(x) = -3x + 5, solve for x when f(x) =<br> - 4.
const2013 [10]

Answer:

x = 3

Step-by-step explanation:

Step 1: Define

f(x) = -3x + 5

f(x) = -4

Step 2: Substitute and Evaluate

-4 = -3x + 5

-9 = -3x

x = 3

4 0
3 years ago
Read 2 more answers
-4x-9y=1 -x+2y=-4 send help thanks
evablogger [386]
Hey those are linear functions, gotta find Y or X and draw on two axis X/Y. in first y = 4/9x + 1/9. in second y = X/2 - 2.
6 0
3 years ago
If the lengths of the legs of a right triangle are 5 and 12, what is the length of the hypotenuse?
kondor19780726 [428]

Answer:

13

Step-by-step explanation:

If we have a right triangle, we can use the Pythagorean theorem to find the hypotenuse

a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse

5^2 + 12^2 = c^2

25+144= c^2

169 = c^2

Take the square root of each side

sqrt(169) = sqrt(c^2)

13= c

4 0
3 years ago
Read 2 more answers
You are planning to build a rectangular vegetable garden with a perimeter of 42 m. the length is twice the width. find the dimen
Mrac [35]

Length - 14 meters

Width - 7 meters


The length is twice the width - 7 times 2 = 14


There are four sides, two 14m and two 7m. 14 x 2 + 7 x 2 = 42

8 0
3 years ago
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