Answer:
Step-by-step explanation: For any triangle, the angles add to 180 degrees
A+B+C = 180
68+46+C = 180
114+C = 180
C+114 = 180
C+114-114 = 180-114
C = 66
Angle C is 66 degrees
Angle C' is 66 degrees
The triangles ABC and A'B'C' are similar, so angle C = angle C'
2(x+3) = x-4
Answer:
x= -10
Step-by-step explanation:
2(x+3)=x-4
2x+6=x-4
-x. -x
x+6=-4
-6. -6
x=-10
If f(x) = 2x+3 and g(x) = x^2+x/2 - 7 then find (f+g)(x)
Answer:
x2+5x/2 -4
Step-by-step explanation:
f(x) = 2x+3 and g(x) = x^(2)+(x)/(2) - 7 , what is (f+g)(x)
x^2+5x/2-4
B) $33
C) $37
D) $55
E) $70
Answer:
= 8/6435
Step-by-step explanation:
Number of black balls = 8
Number of Brown balls = 5
Total number of balls = 8+5 = 13
Pr (8 balls picked at random are black ) =
Number of black balls / Total number of balls.
1st Pr ( 8 balls picked are black) = 8/13
Pr (2nd random pick) = 7/12
Pr (3rd random pick) = 6/ 11
Pr (4th random pick) = 5/10
Pr (5th random pick) = 4/9
Pr (6th random pick) = 3/7
Pr (7th random pick) = 2/6
Pr (8th random pick) = 1/5
Pr (8 balls picked at random are black ) = 8/13 * 7/12 * 6/11 * 5/10 * 4/9 * 3/7 * 2/6 * 1/5
= 8/13 * 7/12 * 6/11 * 1/2 * 4/9 * 3/7 * 1/3 * 1/5
= 8/6435
But pls note, I solved it such that there wasn't a replacement after each pick.
Math is fun