Answer:
4.3π or 13.51 = r
Step-by-step explanation:
C=2πr To find the circumference of a circle, you must have the formula
8.6π = 2πr Substitute the C for 8.6π
4.3π = r Divide both sides by 2π
13.51 = r Simplify 4.3π if needed
Answer:
Step-by-step explanation:
Using brackets will really help.
y = (x^2 + 4x + ... ) - 5 You are trying to complete the square. The square in this case is a trinomial that is squared.
To do that, you take 1/2 the linear term (4x)/2, drop the x (4/2), and square the result (4/2)^2. The number is 2^2 which is 4.
So far what you have is
y = (x^2 + 4x + 4) - 5
Now you just can't add 4 without adjusting it somehow. If you do, the whole question will change it's value. Because you added 4 inside the brackets, you must subtract 4 outside the brackets.
What that means is 4 inside - 4 outside. So it looks like this
y = (x^2 + 4x + 4) - 5 - 4
Now you continue on
y = (x + 2)^2 - 9 The 4 combines with the 5 to make nine.
Step-by-step explanation:
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0.416666666666666666666
Answer:
64÷32=2.
Step-by-step explanation:
if you add 32+32 it's 64, so that means 32x2=64 and yeahhh
Answer:
Q (8,0)
R (8,9)
S (5,0)
Step-by-step explanation:
I counted how many places is each point away from the line and then I counted the same amount of places on the other side in order to find the reflected angle.
