Answer:
Divide the diameter by 2 and insert for radius in the equation
Step-by-step explanation:
To find the area of a circle, we can use the equation <em>A=pir^2 </em>or <em>area=pi*radius squared.</em>
The radius is half of the diameter, so just divide the diameter by 2 and plug it into the equation.
Hope this helps!
6x + 2 = 2x - 1
Move the variables to one side. I subtract 2x from both sides.
4x + 2 = -1
Subtract 2.
4x = -3
Now divide by 4 on both sides.
x = -3/4 or -0.75
At first let's multiply the second terms of the given expression. So,
(8-3i)(8+8i) = 8*8 +8*8i - 3i*8 -3i*8i
= 64 + 64i -24i -24i^2 (By multiplying)
= 64 +40i -24*(-1) (Adding the like terms and i^2=1)
=64 +40i +24 (Since (-24)*(-1)= +24)
= 88+40i (Adding the like terms).
Now the original equation is :
(8-3i) - (8-3i)(8+8i) = (8-3i)-(88+40i)
=8 - 3i -88 -40i
=(8-88)-3i -40i (By grouping the like terms)
=-80 -43i (Combine the like terms).
So, the value of the given expression is -80 -43i.
Answer:
4³ = 64
Step-by-step explanation:
4 * 4 * 4 = 64
Multiply the big number a certain amount of times. The amount is specified in exponential form on the top. So in this case, you multiply 4 three times.
Answer:
Step-by-step explanation:
83bc i did the test