The domain is [-3,+infinity}
Or
X_>-3
Use the commutative property to reorder the terms, Separate the function into parts to determine the domain of each part, The domain of an even root function are all values of for which the radicand is positive or , The domain of a linear function is the set of all real numbers, Find the intersection
There are a total of 8 balls
The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4
Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14
Answer:
8
Step-by-step explanation:
Using sine rule,
sin 80° ÷ 10 = sin 50° ÷ x
x = sin 50° ÷ (sin 80° ÷ 10)
= 7.77 --> 8
I think b may not be right