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Rzqust [24]
3 years ago
9

What is the equation of the graph below?°

Mathematics
1 answer:
MAVERICK [17]3 years ago
8 0

Answer:

the first formula

Step-by-step explanation:

the graph is y=cosx and cosx=sin(x+90)

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Determine and state the coordinates of the center and the length of the radius of the
zmey [24]

we can see that the center is (-3, 3) and the radius is 9 units.

<h3 /><h3>How to find the center and radius of the circle?</h3>

The general circle equation, for a circle with a center (a, b) and radius R is given by:

(x - a)^2 + (y - b)^2 = R^2

Here we have the equation:

x^2 + y^2 + 6x = 6y + 63

Let's complete squares:

x^2 + y^2 + 6x - 6y =  63

(x^2 + 6x) + (y^2 - 6y) = 63

(x^2 + 2*3x) + (y^2 - 2*3y) = 63

Now we can add and subtract 9, (two times) so we get:

(x^2 + 2*3x + 9) - 9 + (x^2 - 2*3x + 9) - 9 = 63

(x + 3)^2 + (y - 3)^2 = 63 + 9 + 9 = 81 = 9^2

(x + 3)^2 + (y - 3)^2 = 9^2

Comparing with the general circle equation, we can see that the center is (-3, 3) and the radius is 9 units.

If you want to learn more about circles:

brainly.com/question/1559324

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7 0
2 years ago
Solve the system of equations by substitution. Show your work in the sketch and write your answer as an ordered pair.
Ede4ka [16]

Let's solve your system by substitution.

−3x+y=−2;y=4x

Rewrite equations:

y=4x;−3x+y=−2

Step: Solvey=4xfor y:

y=4x

Step: Substitute4xforyin−3x+y=−2:

−3x+y=−2

−3x+4x=−2

x=−2(Simplify both sides of the equation)

Step: Substitute−2forxiny=4x:

y=4x

y=(4)(−2)

y=−8(Simplify both sides of the equation)

Answer:

x=−2 and y=−8

3 0
3 years ago
Identify the index in the radical below.<br> A. 1<br> B. 2<br> C. 3<br> D. 4
marysya [2.9K]

Answer:

It is four/4 I believe D.4

Step-by-step explanation:

3 0
3 years ago
Which number line shows the solution to 2/3x - 5 &gt; 3
NNADVOKAT [17]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
(3.14×10^7)×(1.3×10^−3)÷0.2<br><br> Please answer in scientific notation. Thank you.
frez [133]
When you evaluate the problem you end up with 204100
Scientific Notation: 2.041 x 10^5
8 0
3 years ago
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