Answer:
(a) discriminant is positive, 76
(b) the above tells you there are two real roots
Step-by-step explanation:
the discriminant is 'b² - 4ac'
3x² - 2x - 6 = 0 ∴ a = 3, b = -2, c = -6
(-2)² - 4(3)(-6) = 4 + 72
I am pretty sure it is B.
m + 4 = 5m - 12
Subtract m from both sides.
4 = 4m - 12
Add 12 to both sides
16 = 4m
Divide both sides by 4
m = 4
Answer:
the weight of the steel beam and steel beam length
let y be weight and x be length of it
y=ax
where a is the constant
we can find it if we have two sets of values of y and x
Answer:
y intercept = 4
x intercept = -8
Step-by-step explanation:
0 = x/2 + 4
-4 = x/2
-8 = x
y=mx+b
y = 1/2x+4
Y intercept = b, b= 4
