C. If the first coefficient is negative, then the graph opens downwards
Answer:
1/12
Step-by-step explanation:
probability of tails is 1/2
probability of 1 out of 6 is 1/6
so 1/2 x 1/6 = 1/12
Answer:
Step-by-step explanation:
There are three right-angled triangles and two of them have x in their dimensions:
The largest one with one side at 48+x and another at 10
The smallest one with one side at x and another at 10
Those 2 right-angled triangles are similar because of AAA - both have a right-angle and share a common angle.
So their sides are in the same ratio:
x / 10 = 10 / (48+x)
x*(48+x) = 10*10
x^2 + 48x - 100 = 0
(x+50)*(x-2) = 0
x = -50 or 2
As length cannot be negative, x = 2
The answer is 30
WoSo at 7 PM, the hour hand is on 7 and the minute hand is on 12.
That is a gap of five hours.
The whole clock has twelve hours.
We know that a clock is a circle.
A circle has 360 degrees.
So, the 12 hours of a clock make 360 degrees.
Each hour is 360/12=30 degrees.
So, 5 hours makes 30*5=150 degrees.