Answer:
A. x = 15
Step-by-step explanation:
2x + 3 * (x - 10) = 45
2x + 3x - 30 = 45
5x - 30 = 45
5x = 75
x = 15
Answer:
The value of x is 2.11
Step-by-step explanation:
area of a triangle=95m^2
perpendicular(p)=3x
base(b)=3x
now,
area of right angled triangle=1/2*b*p
or,95=1/2*3x*3x
or,95*2=9x
or,190=9x
or,190/9=x
x=21.11
Answer:
A and B are not independent events because P(A|B)≠P(A)
is the correct answer.
Step-by-step explanation:
If A and B are independent then we must have
P(AB) = P(A) P(B) and also
P(A/B) = P(A)
We are given that
A and B are two events.
Let P(A)=0.5 , P(B)=0.25 , and P(A and B)=0.15 .
P(A/B) = P(AB)/P(B) = 0.15/0.5 = 0.3
i.e. P(A/B) is not equal P(A)
Similarly P(B/A) = P(AB)/P(A) = 0.15/0.25 = 0.6 not equal to P(B)
Hence A and B are not independent.
Look at the shaded areas and then read A. A rectangle has 2 sets of parallel lines (as these two figures do) and 1 right angle somewhere. These two shaded regions do not have 1 right angle.
B: B is not correct because the shaded figures have 2 sets of 2 equal lines. A rhombus has 4 equal lines.
C: Not true either. The lines have 2 sets of parallel lines. Trapezoids have only 1 set.
D. D is true
E. E is true.
Perhaps you are not supposed to consider what the figures look like. I don't know how to answer the question. You likely got the same answers I did. Any chance you copied the wrong diagram?