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elixir [45]
3 years ago
14

Please help answer!!!!

Mathematics
1 answer:
user100 [1]3 years ago
8 0

Answer:

? = 4

Step-by-step explanation:

You are in the third quadrant. You want the answer to come out to the equivalent of 225o or pi + pi/ 4 = 5/4 * pi

x - pi/2 = 5/4 pi

x = 5/4 pi + pi/2

x = 5/4 pi + 2*pi / 4

x = 7/4 pi

? = 4

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Nikitich [7]
K (-3,-3)
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6 0
2 years ago
Use substitution to solve the system.<br><br> X= ?<br> Y= ?<br><br> 5x+4y = -10<br> x = 3y+17
nikklg [1K]

Answer:

x=3.4

y=-6.75

Step-by-step explanation:

5x+4y=-10  (equation 1 )

-5x+3y=-17  (equation 2)

7y=-27

y=-6.75

substitution (equation 1 ) y=-6.75

5x-27=-10

5x=17

x=3.4

4 0
3 years ago
PLZ ANSWER! ILL GIVE YOU BRAINIEST IF YOU ANSWER IN 2
V125BC [204]

Answer:

-4;-4

Step-by-step explanation:

these would be the coords because each of the lines represents 2 units

6 0
2 years ago
Factorise the following quadratic equations ​
vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

In 13 - 17

Consider the factors of the constant term which sum to give the coefficient of the x- term

13

x² - x - 42 = (x - 7)(x + 6)

15

x² + x - 6 = (x + 3)(x - 2)

17

x² - 27x + 50 = (x - 25)(x - 2)

19

r² - 25 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , thus

r² - 25

= r² - 5² = (r - 5)(r + 5)

5 0
3 years ago
Read 2 more answers
I JUST REALLY MEED HELP I GIVE BRAINLIEST
Nutka1998 [239]

Answer:

32 dollars

Step-by-step explanation:

Let's say the original price is x

Create an equation:

\frac{1}{2}x -5 = 11

Add 5 on both sides

\frac{1}{2}x = 16

x = 32

The answer is 32 dollars

Hope this helps :)

Have a nice day!

8 0
2 years ago
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