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lawyer [7]
3 years ago
5

Simplify (8 + 7i) + (2 –i)

Mathematics
1 answer:
inna [77]3 years ago
8 0
<span>Simplify (8 + 7i) + (2 –i) 
</span>answer:10+6i 
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Solve for y. will give brainiest
hoa [83]

Answer:

y = 81°

Step-by-step explanation:

let the 5 th angle in the pentagon be x

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, then

sum = 180° × 3 = 540°

sum the angles and equate to 540

x + 95 + 125 + 116 + 105 = 540

x + 441 = 540 ( subtract 441 from 540 )

x = 99°

x and y are adjacent angles and supplementary, sum to 180° , that is

x + y = 180°

99° + y = 180° ( subtract 99° from both sides )

y = 81°

7 0
4 years ago
Your television remote control has buttons for digits 0-9. If your press two buttons, how many numbers are possible if
BlackZzzverrR [31]

(A)  I got 10(10)=100 points in remote space.

(B) I also got 10(9)=90 points in remote space

4 0
3 years ago
Read 2 more answers
Solve the equation. Show your work and check your solution.<br> 4+4(x−2)=2(x+1)−x
Masteriza [31]

Answer:

x = 3/5

Step-by-step explanation:

4+4(x-2)=2(x+1)−x

Distribute

4+4x-8 = 2x+1-x

Rearrange and Simplify

4x - 4 = x + 1

Subtract x and add 4

3x = 5

Divide

x = 3/5

5 0
3 years ago
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On square PQRS below, if Q is located at (7,0) and R is located at (5,-8) what is the length of SR
jenyasd209 [6]

the length of SR is 2\sqrt{17} .

<u>Step-by-step explanation:</u>

Here we have , On square PQRS below, if Q is located at (7,0) and R is located at (5,-8) . We need to find Length of side SR . Let's find out:

We know  that  , In a square there are  4 sides , and length of every side is same . So side length of SR = side length of QR . Now , Let's find side length of QR .

We know that distance between two points Q(x_1,y_1),R(x_2,y_2) given by :

⇒ QR = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Two points given are Q(7,0), R(5,-8) :

⇒ QR = \sqrt{5-7)^2+(-8-0)^2}

⇒ QR = \sqrt{(2)^2+(-8)^2}

⇒ QR = \sqrt{4+64}

⇒ QR = \sqrt{68}

⇒ QR = 2\sqrt{17}

But QR=SR , Therefore , the length of SR is 2\sqrt{17} .

8 0
4 years ago
If g(x) = 1- 3/4 what is the value of g(-12)
Lemur [1.5K]
I think you left out x somewhere, check your equation
7 0
3 years ago
Read 2 more answers
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