Let's convert this fraction to an equal fraction which holds a denominator of 100, since it is a power of 10.
Since the denominator can be multiplied by 5 to achieve 100, we can multiply the entire fraction by 5 to create an equivalent fraction that has a denominator of 100:
17/20 = (17*5)/(20*5) = 85/100
To obtain a decimal from this fraction, take the numerator and move its decimal one place to the left for every 0 in the denominator. Since our denominator has two zeros, we will need to move the decimal place on the 85 two places to the left.
This gives us an answer of .85, which can also be expressed as 0.85.
QUESTION 1
Given that:
,
,
and

Then;


Group similar terms;

Simplify;

QUESTION 2
Given that;
.

and

Substitute the functions;

Substitute x=3




QUESTION 3
Given:


This implies that;

Expand the parenthesis;


QUESTION 4
The given function is;

Let





The range is:



The interval notation is;

The answer is about 30 yd2 to 40 yd2 or B.
Thank you :)
Answer:
4 hours at 8 miles an hour: 8(4) = 32 miles in total
8 hours at 2 miles an hour: 2(8) = 16 miles in total
Miles in total: 32 + 16 = 48
The answer is A. 48 miles
Question 3 ⇒ 6.5 x 
If you move the decimal point in 6.5 seven spaces to the right you would get the number 65,000,000.
Question 4 ⇒ 3.99 x 
4.4 x
= 0.000044
3.99 x
= 0.00000399
2.6 x
= 260
1.85 x
= 1850
Question 5 ⇒ 0.0072
If you move the decimal point of 7.2 three spaces to the left. Your answer would be 0.0072, the third choice.
Question 6 ⇒ 
To get the answer to this problem you would count how many decimal places it would take to get your decimal point after 1, which would be 7. But, you want your exponent to be to the power of 10 not 1, so you would simply subtract 1 from 7 (7-1) which would give you 6. So your answer is
.