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lina2011 [118]
2 years ago
10

HELP PLEASE!!!!!!!!!!

Mathematics
1 answer:
Dafna1 [17]2 years ago
3 0

Answer:

12

Step-by-step explanation:

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A circle with center on (7,0) with a radius of 9.
Greeley [361]

Answer:

The answer to your question is   (x - 7)² + y² = 81

Step-by-step explanation:

Data

Center = (7, 0)

radius = 9

Process

To find the standard equation of a circle, just substitute the values of the center and the radius.

Standar equation of a circle

                     (x - h)²  +  (y - k)² = r²

-Identify the values of h and k

                     h = 7    k = 0   and r = 9

-Substitution

                    (x - 7)² + (y - 0)² = 9²

-Simplification

                  (x - 7)² + y² = 81

7 0
3 years ago
What is the slope of the line represented by the equation y= 4/5x - 3
Ivanshal [37]

Answer:

slope is 4/5x

Step-by-step explanation:

its beside the x

8 0
3 years ago
The radius of a cylinder is 3 cm and the height is 6 cm.
Ratling [72]

Answer

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·6+2·π·32≈169.646

5 0
3 years ago
Read 2 more answers
Subtract -7n +2 from 2n - 1
Irina18 [472]
2n - 1    -      -7n + 2     You combine like terms with subtracting
2n - 7n = -5n
-1 - 2 = -3
So -7n + 2     -     2n - 1 = -5n - 3
4 0
3 years ago
Read 2 more answers
Verify the identity. Justify each step.
pishuonlain [190]
From the trigonometry:

tan θ = (sin θ) / (cos θ)
cot θ = (cos θ) / (sin θ)

∴ tan θ + cot θ = (sin θ) / (cos θ)  +  (cos θ) / (sin θ)
  = [ sin² θ + cos² θ]/( sin θ cos θ) = 1 /( sin θ cos θ )


note :   sin² θ + cos² θ = 1

6 0
2 years ago
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