The period is 2.
Normally the period of sin(x) is 2pi, but the pi inside the sin(pix) is a horizontal compression by a factor of 1/pi. So 2pi·1/pi = 2
The "1/2" and "+3" do not impact the period. Those just impact the amplitude (vertical aspect) of the graph.
Find total number of integers.
Find how many integers is divisible by 2.
Eliminate even numbers.
11, 13, 15,..., 57, 59
This array contains 51 - 26 = 25 numbers.
Eliminate numbers before the first number divisible by 3 and after the last number divisible by 3.
15, 17, 19,..., 55, 57
This array contains 25 - 3 = 22 numbers.
Now we should eliminate numbers divisible by 3: 15, 21, 27...
There are 8 such numbers.
Therefore, there are 25 - 8 = 17 numbers that <span>can be evenly divided by neither 2 nor 3</span>
I'm not sure for number one, but for number 2 the answer to that one is the second tallest on the chart or on the histogram. For number 3 I'm not sure because i cant see the numbers there too blurry. I'm sorry but i hope i got the second one correct.
6=3 : 16=6 14=6 that should be right
977.834 can be defined as a <u>rational number.</u> Why? Well, 977.834 is not a non-terminating non-recurring/recurring number. Of it was, then it would have been an irrational number. Now, it can be a <u>real number</u> also because real numbers include all sorts of numbers whether it be fractions, decimals, roots, cubes etc. It's not an integer because integers don't include decimals or fractions numbers. So, the answers or options that are correct are
________
Hope it helps.
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