Solve for x. round your answer to the nearest hundredth. x^2+6x+3=0
a. x= -5.45 or x=-0.55
b. x=-6.46 or x=0.46
c. x+1.37 or x=-0.22
d. no real solution

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Which expression gives the exact value of x?

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]