Answer:
a = 5r² and b = r²s
Step-by-step explanation:
a3 - b3 = (a - b)(a + ab + b2)
Expressing 125q^6-r^6s^3 as a difference of 2 cubes
125q^6-r^6s^3
= 5³(r²)³ - (r³)²s³
= (5r²)³ - (r²s)³
Comparing with a³ - b³
a = 5r² and b = r²s
Hence the value of a is 5r² and b is r²s
- The actual cost of the sweater is $18
The question says to evaluate the cost of four dollars less than the cost of a sweater.
To do this, what we have to do is to create a mathematical equation of it.
Less than always insinuates that we are to subtract, and as such, we are going to subtract four dollars from the cost of the sweater to get our final answer.
Four dollars less than the cost of a sweater that costs $22 is
22 - 4 = $18
Learn more about evaluating cost here brainly.com/question/14315509
Answer:
10x^2 + 11x-6=0
Step-by-step explanation:
It is a good idea to get familiar with the operation of your calculator. If you're going to use on-line resources to work problems like this, you can make use of any of several good on-line calculators. Google and Bing search boxes will do calculations for you while observing all the rules of the Order of Operations.
The result of this computation is a number that begins 2.56.... Since the hundredths digit is more than 4, the tenths digit is rounded to the next higher value, from 5 to 6.
Rounded to tenths, 2.1√1.488 = 2.6
