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goldfiish [28.3K]
3 years ago
5

What is the radius of a circle with the equation (x − 3)2 + (y − 7)2 = 9? A) 3 B) 4.5 C) 6 D) 9

Mathematics
2 answers:
makvit [3.9K]3 years ago
7 0

\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad radius=\stackrel{}{ r} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (x-\stackrel{h}{3})^2+(y-\stackrel{k}{7})^2=9\implies (x-\stackrel{h}{3})^2+(y-\stackrel{k}{7})^2=\stackrel{r}{3^2}~\hfill \begin{cases} center~(3,7)\\ radius=3 \end{cases}

Pepsi [2]3 years ago
3 0

Answer:

3

Step-by-step explanation:

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

(X-6)^2+ (y+2)^2=9

R^2=9

R=3

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(a) A natural number that is greater than 25 and less than 40
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<u>Step-by-step explanation:</u>

(a) A natural number that is greater than 25 and less than 40

Natural Number : These are numbers starting from 1 or also sometimes from zero and are all positive !  A natural greater than 25 & less than 40 is 30 .

(b) An integer which is less than -5 and a multiple of 2

Integer : An integer is a whole number not a fraction including 0 . It can be positive or negative ! Integer less than -5 and a multiple of 2 is -6.

(c) A rational number between 1 and 2

Rational Number : A number which can be expressed in form of p/q where q is not equal to 0 . A rational number between 1 & 2 is 3/2 .

(d) An irrational number between 8 and 9.​

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5 0
3 years ago
1 Point
Paha777 [63]

Answer:

A

Step-by-step explanation:

f(x)=5^{3x}

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5 0
3 years ago
45 is 6% of what number
enot [183]

Answer:

x=750

Step-by-step explanation:

45×100÷6

4 0
3 years ago
Read 2 more answers
X=53+44+46? Is this right or no?
OleMash [197]

Answer:

X= 143°

Step-by-step explanation:

You could do it your way or as you can see, there's a right angle, which equals 90°, so you could either add 44+46+53 or 90+53. You get the same answer, which is 143°.

3 0
2 years ago
Read 2 more answers
The school system is trying to help their students be more successful. They are going to hire tutors to help. They must have mor
dexar [7]

Answer:

a. x-y > 0

b. x+y \leq 50

c. x=26; y=24 or (24,26)

Step-by-step explanation:

Let x = number of teachers hired.

Let y = number of tutors hired.

Now solving for part a we get

a. Write an inequality that represents the statement that the number of teachers hired must exceed the number of tutors hired.

x-y > 0

solving for part b we get;

b. Write an inequality that represents the statement that the maximum number of teachers and tutors is 50.

x+y \leq 50

solving for part c we get;

c. Choose a point that satisfies the situation, and explain why you chose that number of tutors and teachers.

Now we know that x-y > 0 also x+y \leq 50

x=26; y=24

(24,26)

Explanation: To make number of teacher more than number of tutors this is the maximum value we can achieve for the requirement.

6 0
3 years ago
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