What's the complete factorization of 10a^2 - 40a + 30?
a) 10(a - 4)(a - 1)
b) 10(a - 1)(a - 3)
c) 10(a + 1)(a + 3)
d) 10(a - 1)(a + 3)

What is the solution to the equation 9^(x+1) =27

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

Is the square root of 4 plus the square root of 16 rational?