I cant really ay, but i think it is a right angled triangle
Answer:
the first option that it shows you. i did the test i got 100
Step-by-step explanation:
The answer is choice C
On the left side we have something in the form a*b+a*c+a*d
On the right side we have something in the form a*(b+c+d)
All together, we have a*b+a*c+a*d = a*(b+c+d), where the letters a,b,c,d are to be replaced with the proper values (0.5, 0.5, 0.3, and 0.2 in that exact order).
The idea of distribution is to multiply the outer value 0.5 by each of the values inside the parenthesis (0.5, 0.3, and 0.2) and add up the products.
Answer:0.017578
Step-by-step explanation:
Given
Nine coins are flipped
So the probability of getting a tail is 
Because on flipping a coin could either yield Head or tail
so getting a tail on nine trails is 
but this tail can come on first coin or second or third ....
So there are 9 possible ways
So probability of getting a tail on flipping nine coin is 
Answer:
∠A = ∠C = 60°
∠B = ∠D = 120°
Step-by-step explanation:
In quad. DPBQ, by angle sum property we have
∠PDQ + ∠DPB + ∠B + ∠BQD = 360°
60° + 90° + ∠B + 90° = 360°
∠B = 360° – 240°
Therefore, ∠B = 120°
But ∠B = ∠D = 120° opposite angles of parallelogram
As, AB || CD opposite sides of a parallelogram
∠B + ∠C = 180° sum of adjacent interior angles is 180°
120° + ∠C = 180°
∠C = 180° – 120° = 60°
Hence ∠A = ∠C = 60° Opposite angles of parallelogram are equal
