Answer:
1. False
2. True
3. true
Step-by-step explanation:
The first answer is false, the second one is true and the third is true
Answer:
The total phone numbers, if the latter ABC is followed, will be 175.
Step-by-step explanation:
We are told that the digits will be in the form ABC and A can take values from 2 – 8, B from 5 – 9 and C from 5 – 9 as well.
This means:
A has 7 possible values (when you count the number of numbers between 2 and 8).
B has 5 possible values.
C has 5 possible values.
Therefore, the total phone numbers, if the latter ABC is followed, will be:
7 x 5 x 5 = 175.
Answer:
f(n) = 2 * f(n - 1) + 1
Step-by-step explanation:
First, notice that the difference between each neighboring term is different, so it is not linear, so we can rule out A and B. Now, it's all about finding a pattern. Eventually, through guess and check, you will get 2 * f(n - 1) + 1.
Perhaps there was a typo in C? Idk!!
Answer:
19
Step-by-step explanation:
Angle ZYW is congruent to angle YWX, so the 3 angles must add to 180.
(3x - 5) + 90 + 2x = 180
5x + 85 = 180
5x = 95
x = 19
