Answer:
x=6 y=3
Step-by-step explanation:
x=y+3 replace that in the other problem x+3=3y becomes y+3+3= 3y. solve and get y=3. replace in x=y+3 to get x=6
b.(a + bi) × 0 = 0
c.(a + bi) × (c + di) = (c + di) × (a + bi)
d.(a + bi) × 1 = (a + bi)
Equation shows identity property of multiplication is (a + bi) × 1 = (a + bi)
The correct option is (d)
The identity property of multiplication says that the product of 1 and any number is that number.
We know, Identity property of multiplication states that
"the product of 1 and any number is that given number".
We know that every complex number have two parts one is real and other is imaginary.
If a is real number and b is imaginary part then by definition
(a + bi) × 1 = (a + bi).
1. Uses Distributive Property of Multiplication.
2. Zero product property.
3. Commutative property of multiplication
4. Identity property of multiplication.
Hence, equation shows identity property of multiplication is (a + bi) × 1 = (a + bi)
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Answer:
sorry i dont have enough information
Step-by-step explanation:
(1+5i)-(3-2i)
(8+6i)-(8-6i)
(-3+9i)+(3+9i)
30 in
15 in
30π om
The distance traveled is given by:
Where,
R: bicycle wheel radio
α: central angle
The angle for a revolution is:
Therefore, substituting values we have:
Clearing the radio we have:
Then, the diameter is given by:
Answer:
the diameter of the wheel is:
The circumference of a bicycle wheel traveling 30π inches in a revolution is equivalent to 30π. Using the circumference formula of a circle, C = πd, where C is the circumference and d is the diameter, we find that the diameter of the wheel is 30 inches.
The question is asking for the diameter of the bicycle wheel which travels 30π inches for each revolution. In other words, the distance that it travels in one full revolution is equivalent to the circumference of the wheel. The formula of the circumference of a circle (or wheel in this case) is C = πd, where C is the circumference and d is the diameter.
So if we plug our values into the formula, we get 30π = πd. Solving this equation for d (diameter), we simply divide each side by π. The π on the right side cancels out and on the left side the π in 30π also cancels out. The diameter of the wheel is therefore 30 inches.
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