Find the equation of the tangent line to the curve at the given point. 5x2+ y2 + 4xy=
1 at (0,1)
A. y= –2x - 1
B. y= 2x - 1
C. y = – 2x + 1
D. y = 2x +1

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

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