Transcript Slide 1
81 * 3 = 243 Notice in this row, we’re multiplying by 3 each time to get the next number. Bottom 25% Top 25% Median 3(2x-5) = 4(x+3) 6x-15 = 4x+12 -4x -4x 2x-15 = 12 +15 +15 2x = 27 The angles in a triangle add up to The figure canentire can be divided 180 degrees, so the shape into 3have non-overlapping would 540 degrees.triangles. 180 * 3 = 540 Since these two angles add up to 270, the missing angle would be 150. 540 - 270 270 These three right angles make up 270 degrees, so we’ll subtract that from our total. 9/20 = 45% 52% 55,000/130,000 = 42.3% Poll #2 shows the most favorable result for Candidate A. Since the MEDIAN is the MIDDLE number, we can cross off the highest and lowest numbers until we reach it. (Remember, when we say “MIDDLE” number, the numbers have been arranged in order from greatest to least!) POSITIVE POSITIVE POSITIVE POSITIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE NEGATIVE The fastest rate of travel occurs when the slope of the graph is the steepest. When expressing a number in scientific notation, the first value must be between 1 and 10. For example… Choice C is the only one that works all 6 times. 15 = (4)2 - 1 15 = 16 - 1 15 = 15 D’ = (1,-1) E’ = (4, 3) F’ = (5, 1) D’’ = (-1, 6) E’’ = (2, 10) F’’ = (3, 8) E” D” D D’ F” E E’ F F’ The same result could be obtained through a single translation of DDEF by moving each vertex one unit right and five units up. “Irrational” means CANNOT be written as a fraction. These can easily be made into fractions by writing them with a “1” in the denominator. This already is a fraction. This means “less than or equal to $300”. Since the skates, lessons, and practice time are all COSTS, they’ll have to be ADDED together. Prisms have two faces which must be parallel to each other. Our shape has no parallel faces. A cone contains a circular face. A cube doesn’t contain a triangular face, but our shape has one. E = 15m + 5b E = 15(6) + 5b They want us to solve for b. 200 = 15(6) + 5b 200 = 90 + 5b 110 = 5b 22 = b Consider a state with a small area, like Rhode Island. In this example, Rhode Island has a smaller overall Florida contains about thirty times more land than Rhode population. It’s population density, however, is Island, but Florida may only have fifteen times as many about twice that of Florida! people as Rhode Island. Obviously, you’re not going to survey the faculty to pick dance music!!! The captains of If you two survey nothing but By sports randomly choosing teams represent students freshmen, you’re not people from each homeroom, who are heavily involved in in thegetting true crossevery student school ahas athletics. This notopportunity section to ofbe the school. You themay same paint an accurate picturefor the don’t really have any idea selected survey, of what the regardless rest of theof who ofthey whatare theorupperclassmen school listens to. Also, might want to hear. what they do. team captains tend to be upperclassmen, so freshmen and sophomores would not be represented equally. The crosssection is a rectangle. 8” 2” If the radius is 4 inches… Then the diameter is 8 inches… And the height is 2 inches… 3x + 2y = 19 2 ( 2x - 1y = 1 ) Multiplying the second equation by 2 will cause the “y” terms to cancel each other out. 3x + 2y = 19 4x - 2y = 2 7x + 2y = 21 x = 3 To find y, plug the x back into one of the original equations… 2(3) - y = 1 6 - y = 1 y = 5 There used to be 100 pieces of candy. Now, there are only 95 left. There used to be 15 blue pieces. Now there are only 13 blues. Candy bag (100 pieces) 95 The probability of pulling out a blue candy now is 13/95 (or .13684) This presentation brought to you by Mr. Jeff Luce BBHHS Mathematics Dept. Good luck & have a nice day!!!