For these kinds of question, multiplication is the best way to go! Or even drawing a picture is helpful.
What's 12 cups x (3/4 cup for each pizza crust)?
Answer:
£2.70
Step-by-step explanation:
4.5* 0.6= 2.70
X^2-2x -3 =0
a =1 b =-2 and c = -3
x = - (-2) +/- sqrt (-2)^2 - 4(1)(-3)
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2(1)
x = + 2 +/- sqrt [(4) - 4(-3)]
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2
x = +2 +/- sqrt [4 + 12]
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2
x = +2 +/- sqrt[16]
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2
x = +2 +/- (4)
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2
x = 2 + 4 or 2 -4
------- ------
2 2
x = 6/2 or -2/2
x = 3 or x = -1
Answer:
(0, 3)
Step-by-step explanation:
(-4+4)/2 , (7-1)/2
0/2 , 6/2
0, 3
Answer:
Q'(-2 , 5)
Step-by-step explanation:
Note that:
1) When you are reflecting over the x-axis, you are changing the sign for the y.
2) When you are reflecting over the y-axis, you are changing the sign for the x.
In this case, you are reflecting over the y-axis. Change the sign of the x:
Q(2 , 5) ⇒ Q'(-2 , 5)
Q'(-2 , 5) is your answer.
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