Answer:
0.94
Step-by-step explanation:
Formula; P(AUB) = P(A) + P(B) - P(AB).
P(A) = 0.7
P(B) = 0.8
P(AB) = 0.56
= 0.7 + 0.8 - 0.56
= 0.94
Hence, P(A U B) = 0.94
[RevyBreeze]
Answer:
y=1
Step-by-step explanation:
the missing parts of the table
Answer:
the long diagonal d=15.49 ( rounded to the nearest hundredth)
the shortest d=√136-120(cos 30)=5.663 ( rounded to the nearest hundredth)
Step-by-step explanation:
Area=height * base
30=h*6
h=30/6=5 cm
height=asinФ
sinФ=5/10=1/2 (Ф=30)
alternate angle=180
180-30=150 degrees
diagonal²=a^2+b^2-2abcos150
d²=10²+6²-2(10)(6)(-√3/2)
d=√136+60(√3)
the long diagonal d=15.49 ( rounded to the nearest hundredth)
the shortest d=√136-120(cos30)=5.663
1. find out how many 4thrs make up 40 which 10 would be one 4 so he would have 30 right and 10 wrong because together 30 + 10=40 which is the whole amount