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3 years ago

Which complex number is represented by the point graphed on the complex plane below

Mathematics

2 answers:

vlada-n [284]3 years ago

7 0

Answer:

Option (c)

Step-by-step explanation:

A complex number is a combination of a real number and an imaginary number.

Real number be represented on X axis and imaginary number be represented on Y axis.

Here real part of the complex number is 3 and the imaginary part is -4.

So, the complex number is 3 - 4i.

slavikrds [6]3 years ago

6 0

See this explanation:

for the given point x=3 and y=-4.

It means, z=3-4i. Answer; C.

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Write the equation of the line perpendicular to y = *x+7 with a y-intercept of (0-1)

I am Lyosha [343]

Answer: y = -x - 1

Step-by-step explanation:

Use the Point-Slope formula: $y - y_1=m_{\perp}(x-x_1)$ where

(x₁ , y₁) is the given point (0, -1)
$m_{\perp}\ \text{is the opposite reciprocal slope of the given line}\implies m_{\perp}=-1$

Insert those values into the formula and solve for y:

y - (-1) = -1(x - 0)

y + 1 = -x

y = -x - 1

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3 years ago

A row of plaques covers 252 square feet of space along a wall. If the plaques are 6 feet tall, what length of the wall do they c

yan [13]

Answer:

yeah boy

Step-by-step explanation:

They cover 252

they cover up the wall

4 0

3 years ago

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A rectangle is drawn on a coordinate plane. Three vertices of the rectangle are points M(8,7) , N(8,−4) , and P(−5,−4) . Point L

jeka57 [31]

To find point L, it helps to draw it out (see the picture below)

We can then find the distance by using the distance formula:

d=√(x2-x1)² + (y2-y1)²

LP=√(-5 - -5)² + (7 - -4)²
LP=√0 + (11)²
LP=√121
LP=11

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4 years ago

(a) We have three standard 6-sided dice, colored red, yellow, and green. In how many ways can we roll them to get a sum of 9? Th

Kisachek [45]

I believe that there are 23 different ways to get a total of 20. Then we need to find the number of ways to get each of the 23 different ways. For instance, one way is 6 6 1-1-1-1- 1-1-1-1: 101 / (21-8) = 45 (different ways to get this result) 10 different dice are rolled, giving the 101 in the numerator since the 6 is used twice, divide by 21, since the 1 is used 8 times, divide by 8! Etc., etc., etc. Final answers, add all these results together. I'm not sure about part B! I'm sorry!!!

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3 years ago

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

grandymaker [24]

Answer:

since the equation had a square root in it there was 2 possible answers for x.

Step-by-step explanation:

3 0

4 years ago

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