Answer: it’s 66 I got it right
Step-by-step explanation:
X^2 + 5x - 5 = 0
This is a quadratic equation that cannot be factored. It can be solved using the quadratic formula or by completing the square.
the quadratic formula is x = (-b +-sqrt(b^2 - 4ac))/2a
a is the coefficient of the x^2, b is the coefficient of the x, and c is the constant.
a = 1, b = 5, c = -5
x = (-5 +- sqrt(25+20))/2
x = (-5 +- sqrt(45))/2
x = (-5 + - 3 sqt 5))/2
x = (-5 + 3sqrt5)/2 and x = (-5 - 3sqrt5)/2
Im not sure which number is underlined, but here is each number's place:
7 is tenths
2 is hundredths
4 is thousandths
Answer:
You are going to school in a week and you are out to get school supplies. You need a backpack and it costs 9 dollars. Each pack of mechanical pencils cost $7.50. How much do you spend if you buy "y" packs of pencils?
Step-by-step explanation:
9 is initial fee (y-intercept) and 7.50 is the slope.
Answer:
??
Step-by-step explanation:
Please provide #'s or a picture I can't help you without them !
