x = - 6 and x = 7
given x² - x - 42 = 0 ← quadratic in standard form
(x - 7 )(x + 6) = 0 ← in factored form
equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x + 6 = 0 ⇒ x = - 6
Hello! So, you have a ½ chance of landing on black. To find the possibility that it will land on black 3 times, we multiply fractions, because when it comes to getting a combination, chances lower. ½ * ½ * ½ is 1/8. There is 1/8 of a chance that the spinner will land on black 3 times. The answer is D: 1/8.
Answer:
-19
Step-by-step explanation:
~ Distribute:
- 11 = 1 / 2 x + -3 / 2
~ Flip the equation:
1 / 2 x + -3 / 2 = -11
~ Use transposition method:
(take -3 / 2 to the other side)
1 / 2 x = -11 - (-3 / 2)
= -19 / 2
x = -12 / 2 * 2
= -19
Hope this helped
Wishing u a gr8 day
:D