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meriva
1 year ago
13

Let v=-3i and w=2-4i. Find v+w

Mathematics
2 answers:
STALIN [3.7K]1 year ago
8 0

Answer:

2 - 7i

Step-by-step explanation:

v + w = -3i + 2 - 4i = <u>2</u><u> </u><u>-</u><u> </u><u>7i</u>

Art [367]1 year ago
8 0

Answer:

  • -7i+2

Step-by-step explanation:

  • v + w

Given that v = -3i and w = 2-4i

Substituting them and simplifying,we obtain

  • -3i + 2-4i

Collecting like terms,

  • -3i - 4i + 2
  • -7i + 2

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B. (2x+4y)(4x2-8xy+16y2)

Step-by-step explanation:

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3 years ago
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Answer:

  x = 6

Step-by-step explanation:

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6 0
3 years ago
Find the area of each figure below
Ugo [173]

Answer:

25. 27a^{3}b^{2}

26. 3\pi x^{3}y

Step-by-step explanation:

For 25:

A = \frac{a+b}{2} h  (area of a trapezoid)

A=\frac{11a^{2}b+7a^{2}b}{2} *3ab  (substitute terms)

= \frac{18a^{2}b}{2}*3ab  (collect like terms)

= 9a^{2}b*3ab  (reduce the fraction by crossing out 2)

= 27a^{3}b^{2}  (calculate)

For 26:

A=\pi r^{2}  (equation of area of a circle)

A=\pi (3x^{3} y)^{2}  (enter the radius)

= 3\pi x^{3} y  (communtative property to reorder the terms)

7 0
2 years ago
A right circular cylinder has a volume of 1 cubic meter and a height of 0.6 meters what is the radius of the cylinder to the nea
lapo4ka [179]

The volume formula of a cylinder is :

V=\pi r^2h

From the problem, the volume is 1 m^3 and the height is 0.6 m.

Substitute the given to the formula :

\begin{gathered} 1=\pi r^2(0.6) \\ 1=3.14(0.6)r^2 \\ r^2=0.53 \end{gathered}

Take the square root of both sides of the equation :

\begin{gathered} r^2=0.53 \\ r=\sqrt[]{0.53} \\ r=0.728 \end{gathered}

The answer is r = 0.728 m

8 0
1 year ago
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Read 2 more answers
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