answer: discriminant is 36. there are two real solutions (both different)
the equation 1x^2 - 4x - 5 = 0 is in the form ax^2 + bx + c = 0. we see that
a = 1, b = -4, c = -5
so the discriminant is
d = b^2 - 4ac
d = (-4)^2 - 4()
d = 16 + 20
d = 36 is the discriminant
the discriminant is positive, so there are two different solutions. the solutions are both real.
note: because the discriminant is a perfect square, this means that the two solutions are rational (ie fractions of whole numbers).
x = 1000.
-0.016x = -16
divide both sides by -0.016:
x = -16 / -0.016
we can check this by multiplying -0.016 by 1000:
we move the decimal point 3 times to the right - which gives us -16.
step-by-step explanation:39.99 - $6.00 = 33.99
change 15% into a decimal > 0.15
multiply 0.15 and 33.99
33.99 x 0.15 = 5.0985
in this situation were the answer is in money my teacher would make me round so the answer would be 5.10 so i would say the answer is $5.10
i hope this : )
just search it up, anyways the answer is ten.