<span>-2x^2-x+7=0
Variable with the highest degree's (exponent) constant, -2 is a, next variable's constant, -1 is b, the constant or number without a variable, 7 is c
using substitution put the numbers into the formula
</span>(-b±√(b^(2)-4ac))/(a^(2))
(-(-1)±√((-1)^(2)-4(-2)(7))/((-2)^(2)) simplify
(1±√(1+56))/4
1±√(57)/4 is your answer
Answer: x= ±(√30) / 5
Step by step:
Answer:
the answer is 5/2 or alternative form 2*1/2 so the answer is C
It would be 7lbs, you divide the total amount by the amount per pound and you get the weight.
Toy cost = $50
A.T.Q,
Markup = 50*45 / 100 = 22.5
(B)$22.50 is your answer.
