Answer:
Ta có: P (
A
) P (
B
) = 0
,
12
. Vì P (
A
B
) = 0
,
2 ≠ 0
,
12 = P (
A
) P (
B
)
nên hai biến cố A và B không độc lập với nhau.
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
10² + 24² ≠ 28²
Let the width be x, it length is 2x - 4
Area = length x width
x(2x - 4) = 170
2x^2 - 4x - 170 = 0
x^2 - 2x - 85 = 0
x = 10.27
Therefore, the width ≈ 10.27 ft and the length is 2(10.27) - 4 ≈ 16.54
47 degrees
Work:
90+43+x=180
133+x=180
-133 -133
———————
x= 47
.025 is the probability in decimal form.
2.5% in percent form.
