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Shtirlitz [24]
3 years ago
7

I need help please!!!!!

Mathematics
1 answer:
Viktor [21]3 years ago
3 0
The last box is the correct answer I believe
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The center of a circle is the point (3, 2). if the point (6, −2) lies on this circle, find the standard equation for the circle.
garri49 [273]
Given 
centre of circle O(3,2)=O(x0,y0)
point on circle P(6,-2)

Standard equation of circle:
(x-x0)^2+(y-y0)^2=r^2

r=radius of circle
= (distance OP)
= sqrt((6-3)^2+(-2-2)^2)
=sqrt(3^2+(-4)^2)
=sqrt(25)

=> 
r^2=(sqrt(25))^2=25

Equation of circle
(x-x0)^2+(y-y0)^2=r^2
(x-3)^2+(y-2)^2=25   ............... standard equation of circle
5 0
4 years ago
I need the answer and the answers are there
sergeinik [125]

Answer:

Step-by-step explanation:

5 0
3 years ago
Find the critical value za/2 that corresponds to the confidence level 93%
kvv77 [185]

Answer:

z0.07/2=1.81

Step-by-step explanation:

thus:z0.035=1.81

z0.07/2=1.81

4 0
3 years ago
Find the final amount for a $750 investment at 5.25% interest compound semiannually for 25 years
Rufina [12.5K]

Answer:

=$2739.81

Step-by-step explanation:

To find the total amount if the interest is compounded, we use the compound interest formula.

A=P(1+R/100)ⁿ

A is the amount, P- principal, is the invested amount R is the % interest rate, n is the number if periods.

If compounded semi-annually, it means we have two periods in 1 year

The rate is also divided by 2

Thus 25 years have (25×2) = 50 periods.

A= 750(1+5.25/200)⁵⁰

=750(1.02625)⁵⁰

=$2739.81

8 0
4 years ago
If a=2b then a:b= what ???​
cluponka [151]

Answer:

2:1

Step-by-step explanation:

a:b\\---\\\ 2b:b\\2:1

5 0
3 years ago
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