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andrezito [222]
2 years ago
9

Applying Integer Operations

Mathematics
1 answer:
vovangra [49]2 years ago
7 0
She spent 33 dollars on the socks and sweater, but since she found the 5 dollars she now has 28$ dollars less 
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Sin x =<br>cos x =<br>tan x =<br>​
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Sin x = b/c
Cos x = a/c
Tan x = b/a
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2 years ago
Where do i plot the points? Need help ASAP!
drek231 [11]

Answer:

Plot at (8,2)

Step-by-step explanation:

3 0
2 years ago
Find all solutions of the equation x^2 -2 x + 6 = 0 by completing the square. Express the soutions in the form a + b i:
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x^2-2x+6=0\\&#10;x^2-2x+1+5=0\\&#10;(x-1)^2=-5\\&#10;x-1=\sqrt{-5} \vee x-1=-\sqrt{-5}\\&#10;x=1+5i \vee x=1-5i\\
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3 years ago
Find the sum of the measures of the interior angles of the indicated convex polygon
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180(n-2)
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5 0
3 years ago
Solve the system by substitution.<br> x = - 4y - 5<br> 2x + 10y = 8
lina2011 [118]

Answer:

x = -41

y = 9

Step-by-step explanation:

Begin by multiplying the top equation by 2

2x = -8y - 10

The second equation requires a little more care.

Start by moving 10y to the right. Normally the y value is on the left, but we are going to be substituting for 2x.

2x = - 10y + 8

What I've done is not the usual practice, but there is nothing wrong with it.

Now since both right sides are equal to 2x, you can substitute for them

-8y - 10 = -10y + 8                Add 10y to both sides

-8y + 10y - 10 = 8

2y - 10 = 8                           Add 10 to both sides

2y = 8+10

2y = 18                                 Divide by 2

y = 18/2

y = 9

Use the second original equation to solve for x

2x + 10y = 8

2x + 10*9 = 8                    

2x + 90 = 8                         Subtract 20 from both sides

2x = 8 - 90

2x =  - 82                              Divide by 2

x = -822/2

x = - 41

4 0
3 years ago
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