Answer:
33.53
Step-by-step explanation:
OB is a radius of the circle, and OC is also a radius of the circle, so both are equal length. That makes ΔOBC an isosceles triangle.
If we cut ΔOBC in half, the angle formed is 125° / 2 = 62.5°.
Therefore:
sin 62.5 = (x/2) / 18.9
x = 37.8 sin 62.5
x ≈ 33.53
Answer:
3/700
Step-by-step explanation:
Let
x = the quantity
3/7% of x
= 3/7 ÷ 100 * x
= 3/7 × 1/100 * x
= (3*1)/(7*100) * x
= 3/700 * x
= 3/700x
3/7% of a quantity = 3/700 of the quantity
Answer:
6 and -8
Step-by-step explanation:
6*-8=-48
6+(-8)=-2
Answer:
7. D. 130² ft.
8. She can feed 6 friends.
9. There are 7 trees in each row.
10. B. 490.
Answer: The required probability is 0.1328.
Step-by-step explanation:
Since we have given that
n = 5
Probability of success = p = defective rate = 3% = 0.03
Probability of failure = q = 1-p = 1 - 0.03 = 0.97
So, we will use "Binomial distribution":
probability that the first defective occurs in the fifth item inspected would be
Hence, the required probability is 0.1328.
