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Vaselesa [24]
2 years ago
5

Let r= (4+i) and s= 1-i. What is the value of r2-s?

Mathematics
1 answer:
Verizon [17]2 years ago
3 0

Answer:

r^2 - s = 14 + 9i

Step-by-step explanation:

r^2 = 4^2 + 8i + i^2

r^2 = 16 + 8i - 1

r^2 = 15 + 8i

r^2 - s = 15 + 8i - (1 - i)

r^2 - s = 15 + 8i - 1 + i

r^2 - s = 14 + 9i

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prohojiy [21]

Answer:

About 17.7 meters.

Step-by-step explanation:

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6 0
2 years ago
Vector v has a direction of (5,3) find the direction angle for v to the nearest degree
Vesnalui [34]

Answer:

31^{\circ}

Step-by-step explanation:

We have been given that vector v has a direction of (5,3). We are asked to find direction angle for v to nearest degree.

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Upon substituting the components of given vector in above formula, we will get:

\theta=\text{tan}^{-1}(\frac{3}{5})

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Upon rounding to nearest degree, we will get:

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3 0
3 years ago
Choose the answer that represents the product below as an expontential
kirill [66]

Answer:

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3 0
3 years ago
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The vertex of this parabola is at (2, -4). When the y-value is -1, the x-value is 3. What is the coefficient of the squared term
rjkz [21]

Answer:

3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

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Here (h, k) = (2, - 4) , thus

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To find a substitute (3, - 1 ) into the equation

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3 years ago
Set of real numbers list the set to which each number belongs??
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2 years ago
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