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matrenka [14]
3 years ago
11

Graph: y=-4sin(2x)+1 where the x axis starts at 30​

Mathematics
1 answer:
gregori [183]3 years ago
8 0

Answer:

We want to graph:

y = -4*sin(2*x) + 1

Such that the x-axis starts at x = 30

This is trivial to do if we use a program to graph or if we graph by hand, here we just need to draw the x-axis such that it crosses the y-axis at the point (30, 0)

Then let's graph the equation in that axis, we will get an image like the one you can see below.

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2x-5=3x^2 find the root of X
Zina [86]

For this case we must solve the following quadratic equation:

3x ^ 2-2x + 5 = 0

Where:

a = 3\\b = -2\\c = 5

The roots are given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Substituting the values we have:

x = \frac {- (- 2) \pm \sqrt {(- 2) ^ 2-4 (3) (5)}} {2 (3)}\\x = \frac {- (- 2) \pm \sqrt {(- 2) ^ 2-4 (3) (5)}} {2 (3)}\\x = \frac {2 \pm \sqrt {4-60}} {6}\\x = \frac {2 \pm \sqrt {-56}} {6}

By definition we have to:

i ^ 2 = -1\\x = \frac {2 \pm \sqrt {56i ^ 2}} {6}\\x = \frac {2 \pm i \sqrt {56}} {6}\\x = \frac {2 \pm i \sqrt {2 ^ 2 * 14}} {6}\\x = \frac {2 \pm 2i \sqrt {14}} {6}\\x = \frac {1 \pm i \sqrt {14}} {3}

We have two complex roots:

x_ {1} = \frac {1+ i \sqrt {14}} {3}\\x_ {2} = \frac {1- i \sqrt {14}} {3}

Answer:

x_ {1} = \frac {1+ i \sqrt {14}} {3}\\x_ {2} = \frac {1- i \sqrt {14}} {3}

4 0
3 years ago
HELP ME PLEASE!!! I NEED HELP PLEASE!!!
Vanyuwa [196]
All of them.
This is what they will turn out to be
A will end up being 2xy
B will end up being 9x^2
C will end up being 3y
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8 0
2 years ago
Kathy buys a bicycle after a 30% markdown. The original price was $490.00. What did<br> she pay?
Umnica [9.8K]

Answer:

$343

Step-by-step explanation:

To get 30% of 490 we divide 30% by 1

30% ÷ 1 = 147

Now, we subtract 490 by 147

490 - 147 = 343

4 0
3 years ago
Which statement or statements are TRUE?
USPshnik [31]
A is the answer i think so


8 0
3 years ago
Read 2 more answers
2abc - 3ab if a=2 b=-3 and c=4
Margarita [4]
2abc - 3ab ║ 2 (2) (3) (4) - 3 (2) (3)

You would multiply and the products - you are going to subtract
2 × 2 × 3 × 4 = 48
3 × 2 × 3 =     - 18
                    -------
        answer:    30
7 0
3 years ago
Read 2 more answers
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