Answer:
factorisation method
4x² - 3x + 9 = 2x + 1
4x² - 3x-2x +9-1 = 0
4x² - 5x + 8 = 0
sum = -5
product= 4x8
32
factors=(try to look for the numbers when added they give -5 a!d when multiplied they give 32
press the numbers in the position of -5
factorise
each blacket equal it to 0
and solve for the two values of x
Answer:
28.0
Step-by-step explanation:
The circumference is diameter*3.14 (pi). So for this you divide to get the diameter. Hope this helps! :)\
88/3.14=28.0
Answer:
Step-by-step explanation:
y - 8 = 3(x + 6)
y - 8 = 3x + 18
y = 3x + 10
answer is a
Answer:
140!
Step-by-step explanation:
200 - 60 = 140
Answer:
a. 0.047
b. Unlikely.
Step-by-step explanation:
a. The probability of a test result being wrong for a person not using mrijuana = 8 / 170 = 0.047.
b. As the probability for a wrong result is < 0.05 we can say that the test is unlikely to be wrong.