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1,000M = ? KM
1,000M = 1KM
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THE _____ OF A RECTANGLE IS THE SUM OF THE LENGTHS OF ITS FOUR SIDE. (2L +2W)
PERIMETER.
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DEFINE AREA OF A RECTANGLE
THE PRODUCT OF ITS LENGTH AND WIDTH.
- BE CAREFUL! ALL UNITS MUST BE THE SAME!!
- (INCHES, FEET, ECT)
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Scientific notation...10x
MOVE TO THE LEFT/RIGHT WHAT HAPPENS?
LEFT LARGER X RIGHT SMALLER X (-X)
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WHEN YOU DIVIDE SCI NOTATION HOW DO YOU HANDLE THE X10X ?
SUBTRACTION.
- BUT BE CAREFUL!!! WATCH SIGNS.
- EX: -3 - -4 ---> -3 + +4= 1
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NOTE: WHEN DOING NUMBER SEQUENCING GO PAST 1 LEVEL!!
REMEMBER THE "8" EXAMPLE!!
ALSO USE EXPONENTS AS SOLUTIONS!!
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WHAT IS Y=MX +B IN STANDARD FORM?
A IS POS. B IS POS OR NEG. NO FRACTIONS. 
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WHAT IS THE FORMULA FOR SLOPE IN STANDARD FORM?
- REMEMBER THE IT'S OPPOSITE OF A.
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WHAT IS X INTERCEPT IN STANDARD FORM?
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WHAT IS THE Y INTERCEPT IN STANDARD FORM?
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91=?
9
If the exponent is 1, then you just have the number itself.
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90 = ?
1
If the exponent is 0, then you get 1.
But what about 00 ? It could be either 1 or 0, and so people say it is "indeterminate".
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5-1 = ?
1 / 5 = 0.2
start with "1" and then multiply (POS EXP) or divide (NEG EXP)as many times as the exponent says, then you will get the right answer.
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5-2 = ?
1 / 5 / 5
- 1/ 5 = 0.2 THEN DIVIDE 0.2 BY 5 AGAIN
- 0.2 / 5 = .04
- -----OR----
- MULTIPLY 5*5 = 25 THEN RECIPROCATE 1/25 NOW DIVIDE IT. = .04
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8-1 = ?
8-1 = 1 ÷ 8 = 0.125
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5-3 =?
5-3 = 1 ÷ 5 ÷ 5 ÷ 5 = 0.008
5-3 could also be calculated like:1 ÷ (5 × 5 × 5) = 1/53 = 1/125 = 0.008
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(-2)-3 = ?
| 1 / (-2)3 | | = | | 1/(-8) = -0.125 |
(-2) * (-2) = (4) * (-2) = (-8)
- With () (-2)^2 = (-2) × (-2) = 4
- Without () -2^2 = -(22) = - (2 × 2) = -4
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(-2)2 = ?
(-2)2 = (-2) × (-2) = 4
WITH () THINK INDIVIDUALLY GROUPED.
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-22 =?
-22 = -(22) = - (2 × 2) = -4
THINK GROUPED TOGETHER!
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(ab)2 =?
(ab)2 = ab × ab
WITH () YOU APPLY EXP TO ALL INSIDE!
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ab2 =?
ab2 = a × (b)2 = a × b × b
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- WITHOUT () ONLY APPLY EXP TO THE CLOSEST BASE.
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QUICK! NEG OR POS ANSWER: (-3)^5
NEG. ODD EXP!!
(-3)5 = (-3) × (-3) × (-3) × (-3) × (-3) = -243
(The product of an odd number of negatives is negative)
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What is the value of (-2)-5 ?
(-2)-5= -0.03125
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What is the value of (-5)-3 ?
YES YOU CAN HAVE A NEGATIVE RECIPROCAL!
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- THE POINT HERE IS THE RECIPROCAL OF 8.
- Find the reciprocal of a whole number by placing the number over one and flipping the numerator and denominator to create the reciprocal fraction.
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What is the value of 22 - 2-2 ?
22 = 2 × 2 = 4So22 - 2-2 = 4 - 0.25 = 3.75
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WHEN YOU SEE A NEGATIVE EXP, WHAT IS THE 1ST THING YOU THINK ABOUT?
IT'S GOING TO BE A DECIMAL!!
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