Answer:
3
Step-by-step explanation:
(6a+9)-7b
There are 3 terms
The answer is 75
Explanation: 180 - 75 - 60 = 75
I sure this is true
Answer:
86
Step-by-step explanation:
Its 30 you find the unit rate by 21÷7 which equals 3 then you multipy 3x10 which gives you 30
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
