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2 years ago

Simplify 3-4i/3+4i + 3+4i/3-4i

Mathematics

1 answer:

Shkiper50 [21]2 years ago

4 0

Answer:

-14/25

Step-by-step explanation:

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What is the y-intercept Of the function Represented by the table of values belowX -2 1 2 4 7 y 15 6 3 -3 -12

Kipish [7]

Given:

The table of values.

To find:

The y-intercept of the given function.

Solution:

The table of values represents a linear function because the rate of change is constant.

Consider any two points from the given table. Let the two points are (-2,15) and (1,6). Then the equation of the linear function is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

$y-15=\dfrac{6-15}{1-(-2)}(x-(-2))$

$y-15=\dfrac{-9}{1+2}(x+2)$

$y-15=\dfrac{-9}{3}(x+2)$

$y-15=-3(x+2)$

Adding 15 on both sides, we get

$y=-3x-6+15$

$y=-3x+9$

Putting x=0, we get

$y=-3(0)+9$

$y=0+9$

$y=9$

The y-intercept is 9. Therefore, the correct option is C.

8 0

2 years ago

Read 2 more answers

34 divided by 3 3/4 equals what in fraction form

anygoal [31]

Answer:

9.06

Step-by-step explanation:

6 0

2 years ago

2. For a particular model of a car, a dealer offers 3 sizes of engines, 2 types of stereos, 18 body

Gnesinka [82]

The given details follow the product rule. The different model of the car available are 756.

Given that:

$Engines = 3$

$Stereos = 2$

$Body=18$

$Color = 7$

The different possibility is calculated using the following product rule:

$Total =Engines \times Stereos \times Body \times Color$

So, we have:

$Total = 3\times 2\times 18 \times 7$

$Total = 756$

Hence, there are 756 different models available.

Read more about product rules at:

brainly.com/question/3944602

3 0

2 years ago

What is y=1/2x+4 in standard form?

zhuklara [117]

<h3>Answer: x-2y = -8</h3>

===========================================

Explanation:

Multiply both sides by 2 to clear out the fraction

y = (1/2)x+4

2y = 2[ (1/2)x + 4 ]

2y = 2*(1/2)x + 2*4

2y = x + 8

Then move the x term over to the left side

2y = x+8

2y-x = 8

-x+2y = 8

Optionally we can multiply both sides by -1

-x+2y = 8

-1*(-x+2y) = -1*8

x-2y = -8

This is in standard form Ax+By = C with A = 1, B = -2, C = -8

The reason why I multiplied both sides by -1 was to make A > 0 which is what some textbooks use as convention. Of course -x+2y = 8 is equally valid too.

8 0

2 years ago

Can someone Help!!!!!! Please!!!!!!

Kisachek [45]

Answer:

You could use a piece wise function to simulate the speed someone is running at a given time in minutes.

for $0\leq t < 15$ s = 9 mph

for $15\leq t< 25$ s = 0 mph

for $25\leq t\leq 40$ s = 6 mph

Step-by-step explanation:

I can't do graphs right now but there's an idea

8 0

2 years ago