Answer:
-2+4i the ansewr is D.
Step-by-step explanation:
Verify Left hand:
Simplify the following:
2 + 3 i - 4 + i
2 + 3 i - 4 + i = (2 - 4) + (3 i + i):
(3 i + i) + (2 - 4)
2 - 4 = -2:
-2 + (3 i + i)
3 i + i = 4 i:
4 i - 2
Factor 2 out of 4 i - 2 giving 2 (2 i - 1):
Answer: 2 (2 i - 1)
Verify Right Hand:
D. -2+4i
just combine like terms :)
62°
Complementary angles by definition are two or more angles that add up to 90°. So we must do 90°-62° to get the missing angle which is 62°.
Hope that helped.
51.1 ≈ r
"A bicycle wheel travels 321 in for each revolution"- means that 321 is the circumference of the wheel that is a circle.
C = 2· π· r
What is the radius of the wheel ?
321 = 2· π· r, divide both sides of the equation by 2 π
(321/2·π) = r , use calculator, solve and round the answer
In one second it turns 200 / 60 = 3 1/3 revolutions. Since one revolution is 360°, the answer is 6 2/3 π radians.
#1-List all outcomes for choosing the digit. *
0)
O
A: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
B: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
C: 1, 2, 3, 4, 5, 6, 7, 8, 9
OD: a number
Both B and C
