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Brrunno [24]
3 years ago
15

Find the center and radius of the circle. (x – 5)2 + (y – 7)2 = 81 Center:( Radius:

Mathematics
1 answer:
disa [49]3 years ago
7 0

Answer:

Center (5,7) radius: 9

Step-by-step explanation:

The standard equation of a circle is

(x-h)^2+(y-k)^2=r^2

where the center is (h,k) and r is the radius

so in this case h is 5 k is 7

and r^2=81 so r=9

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Find the degree measures of the next two positive and the previous two negative angles that are coterminal with the angle 75°.
AlladinOne [14]

9514 1404 393

Answer:

  • 435°, 795°
  • -285°, -645°

Step-by-step explanation:

Add or subtract multiples of 360° to find coterminal angles.

<u>Positive</u>

  75° +360° = 435°

  75° +2×360° = 795°

<u>Negative</u>

  75° -360° = -285°

  75° -2×360° = -645°

5 0
3 years ago
Gannon has deposited $742 in a savings account that earns interest at a rate of 3.4% compounded monthly. What will the account b
marta [7]
Firstly, solve the effective annual interest (ieff) with the equation,
 
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Substituting the values, 
                            ieff = (1 + 0.034/12)^12 - 1 =0.03453

To solve for the future (F) amount of the present investment (P), 
                                       
                                        F = P x (1 + ieff)^n

where n is number of years.
 
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Thus, the answer is $1234.76. 


 
                

7 0
3 years ago
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natima [27]

Answer:

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Step-by-step explanation:

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a) there are 4 terms in the simplified expression

b) 2 terms have negative coefficients (-y² and -2y)

5 0
3 years ago
What is the slope of the line <br> -3x+5y=2x+3y
GaryK [48]
X=2/5y
hope this helps!
8 0
3 years ago
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A set of math tests is normally distributed
Masteriza [31]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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