Answer:
The measure of ∠BDA is 30 Degrees.
Step-by-step explanation:
Lets construct a trapezium with the given data
If O is the point of intersection of the diagonals, ∆ AOD ~ ∆COB. Then
On substituting the given values
Also we know that AC = 6 . That is
AO + OC = 6 or OC = 6 - AO
substituting for CO and cross multiply
5·AO = (6-AO)·7
5AO = 42 - 7AO
12AO = 42
AO = = 3.5
All of the angles at E are right angles, so has the trigonometric ratio
= = 0.5 =
∠BDA = arcsin(1/2) = 30°
Answer:
xsquared + 8x + 12
Step-by-step explanation:
Answer:
3-1=2
Step-by-step explanation:
Answer:
3/8.
Step-by-step explanation:
If you draw a tree diagram, it will make it easier.
For first draw, there is 10/16 chance of drawing red.
In the second draw, if not replaced, there is 9/15 chance of drawing red as one red is already drawn with 9 red beads left.
So, 10/16*9/15=3/8.
Answer:
C
Step-by-step explanation:
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