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3 years ago

W hich of the following are you not likely to see on a graph? dependent variable, units, independent variable, prediction ...?

2 answers:

3 0

"Prediction" is the one among the following choices given in the question that you are not likely to see on a graph. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has actually come to your desired help.

natka813 [3]3 years ago

3 0

Answer: Fourth option is correct.

Step-by-step explanation:

On graph, we can display dependent variables, units, independent variables , because they can be expressed in numbers easily.

Whereas prediction is not competent every time to get expressed with numerical terms.

Hence, prediction is not likely to see on the graph.

Thus, Fourth option is correct.

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cos2x = Check all that apply. A. 1 - 2 sin^2 x, B. sin^2 x -cos^2 x, C. cos^2 x - sin^2 x, D. 2 sin^2 x -1

Dominik [7]

Answer:

cos(2x) = 1 - 2 sin²(x) ⇒ A

cos(2x) = cos²(x) - sin²(x) ⇒ C

Step-by-step explanation:

Lets revise the rule of cosine compound angles

cos(x + y) = cos(x) cos(y) - sin(x) sin(y)

cos(x - y) = cos(x) cos(y) + sin(x) sin(y)

Let us use the first rule above

∵ cos(2x) = cos(x + x)

∵ cos(x + x) = cos(x) cos(x) - sin(x) sin(x)

∴ cos(x + x) = cos²(x) - sin²(x)

∴ cos(2x) = cos²(x) - sin²(x) ⇒ (1)

Lets use the rule sin²(x) + cos²(x) = 1

∵ sin²(x) + cos²(x) = 1

- Subtract sin²(x) from both sides

∴ cos²(x) = 1 - sin²(x)

- Substitute cos²(x) by 1 - sin²(x) in (1)

∵ cos(2x) = 1 - sin²(x) - sin²(x)

- Add the like terms in the right hand side

∴ cos(2x) = 1 - 2 sin²(x) ⇒ (2)

∵ sin²(x) + cos²(x) = 1

- Subtract cos²(x) from both sides

∴ sin²(x) = 1 - cos²(x)

- Substitute sin²(x) by 1 - cos²(x) in (1)

∵ cos(2x) = cos²(x) - (1 - cos²(x))

∴ cos(2x) = cos²(x) - 1 + cos²(x)

- Add the like terms in the right hand side

∴ cos(2x) = 2 cos²(x) - 1 ⇒ (3)

4 0

4 years ago

(-6,-3), m= -1 write an equation in plot-slope form for the line that passes through each point with the given slope

LekaFEV [45]

Answer:

y + 3 = -1 (x +6)

Step-by-step explanation:

5 0

3 years ago

Just need help with 2 and 4 :)

vesna_86 [32]

2.)

0 = 6x + 3y +9
-3y = 6x + 3y - 3y +9

$\frac{ - 3y}{ - 3} = \frac{6x + 9}{ - 3} \\ \\ y = - 2x - 3$
By isolating y we now have the equation in slope intercept form:
$y = mx + b$

Where m = slope and b = y- intercept. Therefore, the slope is -2 and the y - intercept is -3.

4.)

Similarly, #4 is already in slope intercept form so we can solve it by inspection. So for #4 the slope is -1 and the y - intercept is 2.

7 0

3 years ago

ZABD and ZDBC are supplementary angles.

aleksley [76]

<h2>Answer:</h2>

By supplementary angle property,

x + 78° = 180°

x = 180° - 78°

x = 102°.

5 0

3 years ago

Read 2 more answers

A movie rental club charges a one time fee of $25 to join and $2 for every movie rented which equation could represent how much

tia_tia [17]

Answer:

The correct answer option is B. c = 25 + 2m.

Step-by-step explanation:

We are given that a movie rental club charges a one time fee of $25 to join and $2 for every movie rented.

We are to determine whether which of the given equations in the answer options represent how much you would spend to join the club and rent movies for a year.

The correct answer option is B. c = 25 + 2m.

One time charges = 25 plus $2 multiplied by the number of movies rented.

7 0

3 years ago