Answer:
-6a - 3
Step-by-step explanation:
hope this helps
X=3 because you subtract the three on both sides to get x alone. So you get: 7x=21 then you divide seven by 21 and get x=3
Answer:
c
Step-by-step explanation:
Answer:
Ms. sim is not correct
Step-by-step explanation:
Rectangular Prism A
4 x 5 x 6 =
4 x 5 = 20
20 x 6 = 120 cm cubed
Rectangular Prism B
3 x 7 x 6 =
3 x 7 = 21
21 x 6 = 126
Answer:
Let X = score of final exam.
X~normal(23, 16)
(a)
percentage of score between 19 and 27
= P(19 < X < 27)
= P((19-23) / sqrt(16) < Z < (27 - 23) / sqrt(16))
= P(-1 < Z < 1)
= 1 - P(Z <= -1) - P(Z >= 1)
= 1 - P(Z >= 1) - P(Z >= 1)
= 1 - 2*P(Z >= 1)
= 1 - 2(0.1587)
= 0.6826
= 68.26%
According to Normal Distribution Table
P(Z>=1) = 1 - P(Z<1) = 1-0.8413
So the final percentage is 68.26%
