The estimated lengths are 12in. and 5 in. This would be an estimated difference of 7in.
The estimated difference is going to be higher than the actual difference because in rounding 11.7 to 12, you are losing .30in, but in rounding down 5.25 to 5, you are actually gaining .75in.
The ACTUAL difference is 6.45in
The result of expanding the trigonometry expression
is 
<h3>How to evaluate the expression?</h3>
The expression is given as:

Express
as
.
So, we have:

Open the bracket

Express 1 as cos°(Ф)

Hence, the result of expanding the trigonometry expression
is 
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Answer:
he had $90
he bought a phone for $75
90-75=15
he has $15 now
15÷0.06=1500÷6=250 minutes
Answer: $28,752
Explanation:
The<u> definition of bimonthly</u> is an event that happens once in two months.
represents "two", while
represents "event that happens by month.
Given that Glenda receives a salary of <u>$4,792 bi-monthly</u>, we are required to find the earnings per year.
There are <u>12 months in each year</u>, and if the given value is a 2-month value, then we shall divide 12 by 2 to find that there is in total 6 of the 2-month value.

Finally, we shall <u>multiply the total number with the salary</u>, which will be $4,792 times 6.

Hope this helps!! :)
Please let me know if you have any questions
The given number is not a solution of the equation i.e. the number is an inequality
<h3>How to determine the solution?</h3>
The equation is given as:
3x- 4 = 10
The number is given as:
5
This means that
x = 5
Substitute x = 5 in 3x- 4 = 10
3 * 5- 4 = 10
Evaluate the product
15- 4 = 10
Evaluate the difference
11 = 10
The above equation is not true i.e. the equation is actually an inequality
Hence, the given number is not a solution of the equation i.e. the number is an inequality
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