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Alinara [238K]
3 years ago
10

Dentify the radius and the center of a circle whose equation is (x – 5)² + y² = 81. The radius of the circle is ___ units.

Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0

Answer:

9 units

Center is at (5, 0)

Step-by-step explanation:

The radius of the circle is equal to the square root of 81

\sqrt{81} = ±9

Since the radius of a circle must be positive the answer is 9 units.

The center of the circle is at (5, 0)

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Rewrite in simplest terms: 9(m-9)-4(10m+2)9(m−9)−4(10m+2)
trasher [3.6K]

The required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Given that,
To rewrite in simplest terms: 9(m-9)-4(10m+2).


<h3>What is simplification?</h3>

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

Question asked to simplify the term 9(m-9)-4(10m+2).

= 9(m - 9) - 4(10m + 2)
= 9m - 81 - 40m - 8
=  -31m - 90

Thus, the required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Learn more about simplification here: brainly.com/question/12501526

#SPJ1

7 0
2 years ago
If ƒ(x ) = x^2 + 1 and g(x ) = 3x + 1, find [ƒ(2) - g(1)]^2.<br><br> 1<br> 2<br> 9
stepladder [879]
I think that the answer would be 2 if I am right 
5 0
3 years ago
Read 2 more answers
2z^4-10z^3+4z^2 factorable?
charle [14.2K]
Yes
factor out the 2z^2 in each term
(2z^2)(z^2-5z+4)
factor some more
z^2-5z+4
find what 2 numbers multiply to get 4 and add to get -5
the numbers are -1 and -4
(z-1)(z-4)

the factored form is
(2z^2)(z-1)(z-4)
8 0
3 years ago
(8Q) Tell whether the function exhibits damped oscillation. If it does, identify the damping factor and tell whether the damping
dezoksy [38]

Answer:

Option c.

No damping

Step-by-step explanation:

We can easily solve this question by using a graphing calculator or any plotting tool.

The function is

f(x) = (√11)*cos(3.7x)

Which can be seen in the picture below

We can notice that f(x) is a cosine with maximum amplitude of  (√11). Neither this factor nor the multiplication of x by 3.7 serve as a damping factor since they are constants.

f(x) does not present any dampening

5 0
3 years ago
Read 2 more answers
a sack of potatoes weighs 14 pound 9 ounces. after wendy makes potato salad for a picnis, the sack weighs 9 pounds 14 ounces. wh
olganol [36]
14 pounds 9 ounces = 233 ounces
9 pounds 14 ounces = 158 ounces

233-158=75 ounces=4 pounds 11 ounces


4 0
3 years ago
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