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Marizza181 [45]
2 years ago
9

Can someone simplfy to me why we use different formula in some equations for sin cos tan? Like in some instances we swap variabl

es and in others we just divide and stuff and I don't understand why we do that ​
Mathematics
1 answer:
Tom [10]2 years ago
8 0
It does get confusing but there are ways to try & differentiate what is divided & what multiplied or added & subtracted when using variables wording plays a big part in what needs done. Depending what the equation is asking for. Pay close attention to the wording in each one
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What are the coordinates of the center of the ellipse shown below?
photoshop1234 [79]

Answer:

Option D (7, -3)

Step-by-step explanation:

We know that the general equation of an ellipse has the form:

\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2} = 1

Where the point (h, k) are the coordinates of the center of the ellipse

In this case the equation of the ellipse is:

\frac{(x-7)^2}{4} + \frac{(y+3)^2}{16} = 1

Then

h=7\\\\k = -3

So The coordinates of the center of the ellipse are (7, -3)

8 0
3 years ago
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True or False: The null hypothesis should be rejected at a 10% level of significance when testing whether age has any effect on
olga_2 [115]

Answer:

False

Step-by-step explanation:

The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. It is not necessary that all null hypothesis will be rejected at 10% level of significance. To determine the criteria for accepting or rejecting a null hypothesis we should also consider p-value.

7 0
3 years ago
The graph shows how a motorboat travels around a lake. What does the graph most likely show?
kozerog [31]
D, it increases then goes at a constant speed
8 0
3 years ago
Pleaseeeeeeee I need help nowwwww
Tanya [424]

Answer:

(2)

Step-by-step explanation:

One property of a parallelogram is

• opposite angles are congruent, hence

∠L = ∠N and ∠M = ∠P

Using ∠L = ∠N, then

8x - 41 = 6x + 3 ( subtract 6x from both sides )

2x - 41 = 3 ( add 41 to both sides )

2x = 44 ( divide both sides by 2 )

x = 22

-------------

∠M = 2x + 1 = (2 × 22) + 1 = 44 + 1 = 45°

∠P = ∠M = 45° → (2)

6 0
4 years ago
Which of the numbers below belongs to the set of integers?
Murljashka [212]

Obviously it will be 0.25.

Because this number is a rational number not a integer number....

7 0
4 years ago
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