Aim: How do we solve verbal inequality problems?
TEST THIS FRIDAY, NOVEMBER, 10
Topics to be included:
1. Zero and negative Exponents
2. Scientific and standard notation conversions
3. Motion problems
4. Solving and graphing inequalities
5. Solving verbal problems with inequalities
6. Prior knowledge in equation solving, adding and subracting monomials and polynomials
7.Properties of numbers and operations
Homework:
AMSCO Textbook
Read pp 316-317
Do pg 318 # 1-8, 23, 26
Practice Exercise
http://www.regentsprep.org/Regents/math/Solvin/PracIneqD.htm
posted by Mr.Napoli @ 3:25 PM
1 Comments:
Math Review Answers:
(^# means an exponent) ( <= means less or equal too, >= greater or equal)
1) 3/4(2/3)^0
3/4(1) because 0 exponents become one. so the answer is 3/4
2) 5^-2= 1/5^2 = 1/25
3)(-2x^4)^2
(-2x^4) (-2x^4) = 4x^8
4) 3.85 * 10^6 / 385 * 10^4
3.85 *10^6 / 3.85 * 10^6, move the decimal over to the left two spaces so the number is the same. the answer is 1
5) 2.28 * 10^10/ 186000 =
2250*6452 /3600 = 24
6) 9.3 *10^7 the exponent N was 7
7) 3x-19=110, add the additve inverse to -19 to both side, so it is
3x=129 then divide both sides by 3 and you get x=43
8) 3(2-x)=8(x-2), distribute
6-3x=8x-16 add 3x to both sides
6= 11x -16 then add 16 to both sides 22=11x divide each side by 11 and x=2
9) 3x+2>x+8 subtract X from both sides 2x +2>8 subract 2 from both sides and 2x>6 divide each side by 2 (3) x>3
10) 2x+3>9 subtract both sides by 3
2x>6 divide both sides by 2 x>3
11) 18x^6/3x^3 = 6x^3
12) 2x>x+7 subract x from both sides x>7. your graph will have an open circle on 7 and pointing greater than 7
13) the graph will have a closed circle on -2 and an open circle on +4
14) -3<= x<2
15) .70x +.30 = $5
subract .30 from both sides
.70x= $4.70 divide each side by .70 and you can get 6 doughnuts
16)3x-1>2 add one to each side. 3x>3 divide each side by 3 x>1. the smallest number x can be is 2
17) the graph represents (2)
-4<=x<2
18) choice (3) 3x-5
19) He had spent s dollars from what he had so it is d-s
20) the next larger consecutive integer is n+1
21) (2) n/n-2
22) (2)x+3
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