Describe a situation in which using scientific notation (not decimal notation) makes more sense. Also, describe a situation in which decimal notation (not scientific notation) is more advantageous. Scientific notation is basically writing very big or very small numbers in …
Describe a real-life scenario in which you may have to graph (or use) a linear equation. What does the slope represent in your example? What does the y-intercept represent in your example? A real life example of linear equations could …
Describe a real-life scenario in which you may have to graph (or use) a linear equation. Read more »
Explain the difference between finding the following two solutions: What is 15% of 50? 50 is 15% of what? This is a very good example which also could be used to illustrate the very fundamental concept of using and understanding …
Think of some real world examples in which solving or identifying algebraic expressions would be necessary or useful. Explain your examples. There could be different types of real world examples where the use of algebraic expressions might be important or …
Factoring a small number, such as 36, may be pretty simple, but how might one go about factoring a larger number, such as 19,800? Factoring a larger number seems to be difficult but can be easily possible by using various …
24. The number of lawn mower-related accidents per year, A, in a certain U.S. state can be modeled by: A=798-4t where t is the number of years since 2000. If the trend continues, in what year will the number of …
26. A line has a slope of -3 and contains the point (-2,7). Find an equation of this line. Ans. -3=(y-7)/(x-(-2) ) -3×(x+2)=y-7 -3x-6=y-7 3x+y=-6+7→3x+y=1 27. Find a line perpendicular to: 6x-4y=13+y Ans. 6x-5y=13 5y=-6x+13 y=-6/5 x+13/5 For the perpendicular …
28. Simplify the following: (2^6*3^3*5^32*6^12*〖10〗^4)/(〖10〗^2*2*6^8*5^31 ) Ans. (2^6*3^3*5^32*6^12*〖10〗^4)/(〖10〗^2*2*6^8*5^31 )=2^4*3^3*5*6^4*〖10〗^2=279936000 29. Convert the following to scientific notation: .0000900154 Ans. 9.00154×〖10〗^(-5) 30. Simplify the following: (8zw^2+z^3 w^4-9z^2 w^2 )-(-5z^4 w^3-9z^2 w^2+7zw^2+z^3 w^4-z^4 w^3 ) Ans. =5z^4 w^3+z^4 w^3+z^3 w^4-z^3 w^4-9z^2 w^2+9z^2 w^2+8zw^2-7zw^2 …
21. Carol scored 40 points higher on the math portion of the SAT test than on the language portion. If her total score for both parts was 1260, what was her score on each part? Ans. m= math l=language m=40l …
18. Find the product: ((2x^4 yz^2)/7)((7xy^2 z^4)/6) Ans. ((2x^4 yz^2)/7)((7xy^2 z^4)/6)=(2×7×x^5 y^3 z^6)/(7×6)=(x^5 y^3 z^6)/3 19. Find the additive and multiplicative inverses of: 221/10 Ans. Additive inverse, 221/10-221/10=0 And multiplicative inverse, 221/10×10/221=1 20. The cost to ship a package from …
