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[DOCX File]The S A T® - College Board
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x, equals negative 19 gives . x. equals, 2 y. plus 19. Then, substituting 2 y. plus 19 for . x. in 3 x. plus 4 y. equals negative 23 gives 3 times, open parenthesis, 2 y. plus 19, close parenthesis, plus 4 y, equals negative 23. This last equation is equivalent to 10 y, plus 57, equals negative 23. Solving 10 y, plus 57, equals negative 23 ...
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[DOC File]Mathematics Test—No Calculator - SAT Suite of Assessments
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x. equals 2 x. plus 5 for all values of . x. Substituting negative 3 for . x. in this equation gives . f of negative 3 equals 2 times negative 3 plus 5, equals negative 1. Choices A, B, and C are incorrect because . f. is a function, and there is one and only one value for , f of negative 3, which as shown above is . negative 1.
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[DOCX File]Lesson 1
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The value of x could be 1.4 or 11/3; these values are positive and between 1 and 1.5. Diagram C: The value of x is definitely positive, because -x is negative (for example, -(-1.5)=1.5). The value of x is definitely between 1 and 2, since the distance of -x from 0 is a little greater than 1.
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[DOC File]EXPONENTS, SQUARE ROOTS AND RADICALS
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Example 2: 10, 400,000 equals 1.04 x 107. Example 3: .0000042 equals 4.2 x 10-6. Example 4: .000204 equals 2.04 x 10-4. We can also turn a number notated scientifically into a decimal number by reversing this process. If I have 8.7 x 109 I can convert this to decimal by simply moving the decimal point 9 places to the right (positive exponent)
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[DOC File]LESSON X - Mathematics & Statistics
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The angle lies on the negative x-axis. Thus, by the theorem above, we have that = undefined = undefined. 9. Since , then in order to make the angle , it will take fifteen complete revolutions going in the clockwise direction. Thus, the angle of 0 is the coterminal angle that we are looking for. The angle 0 lies on the positive x-axis.
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[DOC File]Guided notes: Scientific notation
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3.2 x 103 + 40 x 102 (change to 4.0 x 103) Add (or subtract) first part of exponent (mantissas) 3.2 + 4.0 = 7.2. The rest of the exponent remains the same. Answer: 7.2 x 103. How do you make the exponents the same? 1) Let’s say you are adding 2.3 x 103 and 2.1 x 105. You …
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[DOC File]PSAT/NMSQT Practice Test 2 for Assistive Technology – Math ...
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Because the point with coordinates negative 2 comma 1 is on the line, we can substitute x equals negative 2 and y equals 1 into the equation for the line. This substitution yields 1 equals 5 times negative 2, plus p, or 1 equals negative 10 plus p. Solving this equation for p gives p equals 11. Incorrect answer
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Multiply negative x negative equals