Answer:
1
Step-by-step explanation:
-30 ÷ (6a)
a = -5
-30 ÷ (6(-5))
-30 / -30 = 1 ( -/- is +)
Answer:21
Step-by-step explanation:just cuz trust me broski its right
Refer to the diagram shown below.
Assume that approximately all the data is contained under the probability distribution curve within 3 standard deviations from the mean. It is actually 99.7%.
Therefore,
bin #1 corresponds to μ-3σ,
bin #11 corresponds to μ,
bin #21 corresponds to μ + 3σ.
Let x be the random variable for bin 17.
Then by interpolation,
![\frac{x-\mu}{(\mu + 3\sigma )-\mu} = \frac{17-11}{21-11} \\\\ x-\mu = 1.8\sigma](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx-%5Cmu%7D%7B%28%5Cmu%20%2B%203%5Csigma%20%29-%5Cmu%7D%20%3D%20%5Cfrac%7B17-11%7D%7B21-11%7D%20%5C%5C%5C%5C%20x-%5Cmu%20%3D%201.8%5Csigma)
The z-score for x is
![z= \frac{x-\mu}{\sigma} = \frac{1.8\sigma}{\sigma} =1.8](https://tex.z-dn.net/?f=z%3D%20%5Cfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D%20%3D%20%5Cfrac%7B1.8%5Csigma%7D%7B%5Csigma%7D%20%3D1.8)
The probability corresponding to bin #17 is (from standard tables)
P(z≤1.8) = 0.964
Therefore if there are 1000 balls, the sum of the balls in bins 1 to 17 is
0.964 * 1000 = 96.4 ≠ 96 balls.
Answer: 96 balls
Answer:
80 sq units
Step-by-step explanation:
Starting with the largest rectangle, we see it has a width of 6 and a length of 8, meaning the area of that only is 48 sq units. (area of rect. = l x w, so 6 x 8 is 48)
There are two smaller rectangles with width 6 and length 2. One of those rectangles would be 12 units (6 x 2). Since there is two of them, then 24 sq. units.
Lastly, there are four small triangles. The area formula for a triangle is 1/2(b)(h). The triangle has a base of 2 and a height of 2. (1/2)(2)(2) =2. Since there are four triangles, the total for them only would be 8 (2 x 4).
Adding each of these pieces together will give us the answer:
48+24+8=80 sq units
Answer:
opo
Step-by-step explanation:
tulog kana po, goodnight