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strojnjashka [21]
3 years ago
8

Can someone please answer. There is one problem. There's a picture. Thank you!

Mathematics
1 answer:
statuscvo [17]3 years ago
6 0
Tan(-180)=0 the answer is 0.
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Solve the equation<br> cb – 20 = –10 for b.
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ANSWER: B = 10/C
You have to isolate the variable by dividing each side by factors that don’t contain the variable
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Are there any values of x or y which are not possible in the function
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something that you've kept hidden from us.
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Solve for a ab + c = d
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How coral polyps form a reef
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Solve system by elimination<br> y=x^2<br> y=x+2<br> SHOW YOUR WORK
Dimas [21]
We have that
y=x²----> equation 1<span>
y=x+2-----> equation 2

multiply equation 1 by -1
-y=-x</span>²

add equation 1 and equation 2
-y=-x²
 y=x+2
------------
0=-x²+x+2-------------> -x²+x+2=0-----> x²-x-2=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

(x²-x)=2
<span>Complete the square. Remember to balance the equation by adding the same constants to each side
</span>(x²-x+0.5²)=2+0.5²

Rewrite as perfect squares

(x-0.5)²=2+0.5²
(x-0.5)²=2.25-----> (x-0.5)=(+/-)√2.25-----> (x-0.5)=(+/-)1.5
x1=1.5+0.5-----> x1=2
x2=-1.5+0.5---- > x2=-1

for x=2
y=x²----> y=2²----> y=4
the point is (2,4)

for x=-1
y=x²----> y=(-1)²---> y=1
the point is (-1,1)

the answer is
the solution of the system are the points
(2,4) and (-1,1)


3 0
3 years ago
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