Solve x2 + 4x = 1 for x by completing the square. a- x = −3
b- x = −1
c- x equals plus or minus square root of 5 minus 2
d- x equals plus or minus square root of 5 plus 2

Indicate the formula for the following conditions: p^c(n, r)=

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?