Answer:
Number 1: a = 5
Step-by-step explanation:
Here cross multiplication is applicable, as such:
10 * 3 = 6 * a
30 = 6a
a = 5
Answer:
14.1 mm
Given:
∠BAC = 90° (angle A should be 90°)
AB = 4.4mm
BC = 14.8mm
See the diagram given below.
<u>Solving using Pythagoras Theorem</u>: a² + b² = c²
x² + 4.4² = 14.8²
x = 14.8² - 4.4²
x = 219.04 - 19.36
x = 199.68
x = √199.68
x = 14.13 ≈ 14.1 mm (rounded to 1 decimal place)
Answer:
250
Step-by-step explanation:
You would get 20 times 10 so that would 80 percent of it
Then you would add another 16 percent so that would be 240
Then you have 4 percent left so half of 20 if 10
So therefore you have 250
Answer:
To calculate the relative frequency, first we need to know what exactly is and how to calculate it.
Relative frequency is the ratio between the absolute frequency (how many repetitions have a specific outcome) and the total outcomes. Also, this type of frequency is used to show the representation that some data have over the whole distribution.
So, in this case, we need to just divide 13, which belongs to red marble's results, to 60 which is the total outcomes, as it's presented:

Normally, relative frequency is shown as a percentage multiplying this result by 100. Therefore, 22% is the approximate percentage of the relative frequency, which means that 22% is the representation of red marbles outcomes of the whole distribution, or we can say it as a probability: there's 22% of chances when someone extract a marble, it will be red.