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mamaluj [8]
3 years ago
13

Use the diagram and side lengths of triangle RST to determine the angles used for the trigonometric ratios

Mathematics
2 answers:
Effectus [21]3 years ago
8 0

sin(R) = 12/13

tan(<span>T</span>) = 5/12

sergejj [24]3 years ago
5 0
Sin (r) = 12/13
tan (t) = 5/12
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F(x)=2x^2-5 how do I graph this and how do I solve this
Marysya12 [62]

Answer:

There isn't a way to do this accurately, but if you just want to sketch the graph.

Step-by-step explanation:

5 0
4 years ago
Find four solutions of each equation. Write the solutions as ordered pairs.
Anna35 [415]

y = 3x

x y

-2 -6

-1 -3

0 0

1 3

y = -2x +11

x. y

-1. 13

0 11

1. 9

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3 0
3 years ago
18. Find the center, vertices, and foci of the ellipse with equation x squared divided by 225 plus y squared divided by 625 = 1.
KengaRu [80]

Answer:

Center (0,0)

Vertices (-15,0), (15,0), (0,-25), (0,25)

Foce (0,-20), (0,20)

Step-by-step explanation:

You are given the ellipse equation

\dfrac{x^2}{225}+\dfrac{y^2}{625}=1

The canonical equation of ellipse with center at (0,0) is

\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1

So,

a^2=225\Rightarrow a=15\\ \\b^2=625\Rightarrow b=25

Hence, the center of your ellipse is at (0,0) and the vertices are at points (-15,0), (15,0), (0,-25) and (0,25)

This ellipse is strengthen in y-axis, so

c=\sqrt{b^2-a^2}=\sqrt{625-225}=\sqrt{400}=20

and the foci are at points (0,-20) and (0,20).

6 0
3 years ago
3. In Sam's math class there are 15 boys and 13 girls. Wat is the ratio of girls<br> to boys? *
Oksi-84 [34.3K]

Answer:

Its either

15:13

or

15 to 13

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1) 2x – 3y - z = 7
m_a_m_a [10]

Answer:

x = 3

Step-by-step explanation:

2x - 3y - z = 7 (equation 1)

3x + 5y - 3z = -2 (equation 2)

4x – y + 2z = 17 (equation 3)

(1) * 3 : 6x - 9y - 3z = 21 (1)'

(1)' - (2) :  3x - 14 y = 23 (equation 4)

(1) * 2 : 4x - 6y - 2z = 14 (1)"

(1)" + (3) : 8x - 7y = 31 (equation 5)

(5)*2 : 16x - 14y = 62 (5)'

(5)' - (4) : 13x = 39

              x = 3

So thus, x = 3 in this system of equations, you can plug x back into equation 4 or 5 to find y and then plug x and y back into equations 1, 2, or 3 to find z

5 0
3 years ago
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