Answer:
C
Step-by-step explanation:
Because that is the only graph that makes the relationship between the 2 propportional.
at 00 hours she makes 0 dollars
at 1 hour she makes 20 dollars
at 2 hours she makes 40
at 3 hours she makes 60
at 4 hours she makes 80
at 5 hours she mkes 100
at 6 hours she makes 120
and so on...
256 is the answer to this question.
800x.32 equals 256 seventh graders
Answer:
f(-3) = -1
g(-3) = 14
Step-by-step explanation:
plug -3 for x to get the answer
The standard form of a quadratic equation is ,
ax² + bx + c = 0.
And the formula to find the discriminant is b² - 4ac.
Here the first step is to change the given equation into standard form. So, add 1 to each sides of the equation. Therefore,
2x² – 9x + 2+1 = –1 + 1
2x² – 9x + 3 = 0
Next step is to compare the given equation with this equation to get the value of a, b and c.
After comparing the equations we will get a = 2, b = -9 and c = 3.
So, discriminant = b²- 4ac
=( -9)²-4 (2)(3)
= 81 - 24
= 57
So, discriminant of the given equation is 57.
57 is greater than 0 and square root of 57 will result real number.
So, the correct choice is C: The discriminant is greater than 0, so there are two real roots.
