What is the standard form of the equation for this circle?
a. -(x – 1)2 – (y + 10)2 + 4 = 0
b. (x – 1)2 – (y + 10)2 = 2
c. (x + 1)2 + (y – 10)2 = 4
d. (x – 1)2 – (y + 10)2 = 4

a (-1, 10)
radius 2

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?