3b I don't get I know the answer is x=-2 and y=-3 I just can't get it
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b.(a + bi) × 0 = 0
c.(a + bi) × (c + di) = (c + di) × (a + bi)
d.(a + bi) × 1 = (a + bi)
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The identity property of multiplication states that the product of 1 and any number is that given number.
We have then, for example:
Where,
a: real number
Applying the definition, we have that the expression that models the identity property is given by:
Where,
a: real part
bi: imaginary part Answer:
d.(a + bi) × 1 = (a + bi)
Equation shows identity property of multiplication is (a + bi) × 1 = (a + bi)
The correct option is (d)
What is Identity property of multiplication?
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)
Learn more identity property of multiplication here:
#SPJ5
B)m=-1
C)m=14
D)m=-8=-+sqrt33
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The equation for the circle is:
(x-8)^2 + (y-1)^2 = 49
If we take 'y' as 1, then
(x-8)^2 + 0 = 49
x-8 = √49
x = ±7 + 8
x = 15 or x = 1
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Area = bh/2
where b is the base and h is the height.
We calculate as follows:
270 = b (15) / 2
b = 36
hypotenuse = sqrt ( 15^2 + 36^2 ) = 39
Answer:
hypotenuse = 39m
Step-by-step explanation:
Area of a triangle= 1/2 * base * height
where base = ?
height = 15
Plugin values into the formula:
270 = 1/2 base (15)
base = 270 (2)
15
base = 36
hypotenuse = √(base² + height²)
= √( 36² + 15² )
= 39
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7x+18=-24
-18 -18
7x=-42
then divide to cancel out multiplication
7x=-42
--- ---
7 7
x=-6
Take 18 to the other side.
7x + 18 - (18) = -24 - (18)
7x = -42
Divide both sides by 7:
7 and 7 cancels out
x = -6
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I don't really know what the question is that needs to be solved, but
here's a suggestion that might help:
Since there are seven days in a week, you could multiply 25 milligrams
by 7, and that will tell you the number of milligrams in a whole week.
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Answer:
Density
Step-by-step explanation:
Density is the number of items per unit area. It is gotten by dividing the number of items by the area it occupies. It measures the compactness of an item in a given area. The higher the density, the more compact items are per unit area and the lesser the density, the less compact items are per unit area. It is measured in items/m²