condyyyy condyyyy
  • 16-02-2017
  • Mathematics
contestada

The Center of circle (x-5)^2 + (y-13)^2=81 is (-5,-13). True or false!! thanks

Respuesta :

jsff42
jsff42 jsff42
  • 16-02-2017
False. because.....

the equation of a circle is (x-h)^2 + (y-k)^2 = r^2 and the center is (h,k) 
if the center of a circle is (-5, -13) substitute the values into the equation 
so....(x- -5)^2 + (y- -13)^2 = r^2  which is (x+5)^2 + (y+13)^2 = r^2 

in this case, because you are only asking about the center of the circle from the equation the 81 or radius of the circle doesn't matter. 
Answer Link

Otras preguntas

Tyrell wants to buy a pair of shoes with an original price of $75. He has a coupon for 25% off. What is the price of the shoes of Tyrell uses the coupon?
what is pie r squared
Find a set of consecutive counting numbers whose sum is 154. Each set may consist of 2 comma 3 comma 4 comma 5 comma or 6 consecutive integers. Use the spreadsh
What is (2+y)³ written out?
I don't know how to graph this inequality y<-3x
What is slope-intercept form?
2/6 < ? select the three fractions that make this comparison true 3/6 2/8 2/4 2/3 1/6
Which description of the impeachment process as defined by the U.S. Constitution is correct? A. The president demands the resignation of a Supreme Court justice
Completing the Square: results in 2 solutions x^2 + 3x = -2
Cystic fibrosis is a genetic disorder. It is a recessive trait that is determined by two alleles. Suppose two parents each carry at least one recessive allele,