Answer:
-6
Step-by-step explanation:
3x-3(x+1)-3
3x-3x-3-3
-3-3
-6
Answer:
32.9
Step-by-step explanation:
- 4.2 × 7 = 29.4
- Plug 29.4 in: 29.4 - 10.4 ÷ 2 + 2.9 × 3
- 10.4 ÷ 2 = 5.2
- Plug 5.2 in: 29.4 - 5.2 + 2.9 × 3
- 2.9 × 3 = 8.7
- Plug 8.7 in: 29.4 - 5.2 + 8.7
- 29.4 - 5.2 + 8.7 = 32.9
I hope this helps!
Answer:
a) 1/10
b) 110
Step-by-step explanation:
A) we start by getting the total number of rolls
That would be;
11 + 22 + 7 + 8 + 13 + 19 = 80
The frequency of getting a 4 is 8
The probability that the next roll will be a 4 is;
8/80 = 1/10
b) Firstly, we get the probability of getting a 2
We have this as:
22/80
So for 400 rolls, the number of 2’s will be;
22/80 * 400
= 22 * 5 = 110
Step-by-step explanation:
therefore, 9 students haven't given their speech
