Answer: B.) 62
sum of interior angles of quadrilateral = 360
lines DB and DA are tangent to the circle, so they're at a right angle to the lines OB and OA respectively. so to find mBOA = 360 - 56 - 90 - 90
so mBOA = 124
mBCA = (1/2)mBOA
mBCA = (1/2)(124)
mBCA = 62°
Answer:
x=5.333
y=3
Step-by-step explanation:
given, y=5-2............(1)
1-3x+y=-12...............(2)
y=5-2=3
put y=3 in equ (2)
1-3x+3=-12
1+3+12=3x
3x=16
x=
x=5.333
hence, x=5.333
y=3 answer
The probability of rolling 1 number, a four, on a 6-sided number cube, is 1/6.
On the second roll, the probability of rolling 1 number, a four, is again 1/6 (remember theoretical probability for one event does not consider previous rolls).
But the probability of rolling a four on 2 on consecutive rolls will be the probability of the first event times the probability of the second event. Think of it as rolling a four on the first time <em>and</em> the second time, and whenever there is "and" you need to multiply the probabilities. The probability of rolling a four on two consecutive rolls is
(1/6)*(1/6) = 1/36.
Answer:
ab - ac + db - dc
Step-by-step explanation:
you distribute the variables inside the parenthesis
