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• a toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. if acceleration due to gravity is –16 ft/s2, approximately how many seconds after the launch will the toy rocket reach the ground?
  
• beta-carotene is an organic compound with an orange color. the diagram above shows the ultraviolet spectrum of beta-carotene. which of the following statements is true about the absorption bands in the spectrum?
  
• all of the following are presented in your textbook as guidelines for ethical speechmaking except
  
• triangle r s t is shown. angle t r s is a right angle. the length of r t is 5, the length of r s is 12, and the length of hypotenuse s t is 13.given right triangle rst, what is the value of sin(s)?five-thirteenthsfive-twelfthstwelve-thirteenthsthirteen-twelfths
  
• for a particular experiment, nadia must measure the following quantities: the mass and volume of a liquid sample the temperature of the liquid every 0.5 seconds for 3 minutes select the tools that nadia most likely needs to use. stopwatch electronic balance graduated cylinder ruler thermometer
  
• a piecewise function is represented by the graph below.on a coordinate plane, a piecewise function has 2 lines. the first line is made up of 2 lines. one line goes from (negative 5, 3) to (negative 1, negative 1) and then goes up to a closed circle at (1, 1). the second line has an open circle at (1, 2) and then continues up through (3, 4).what is the domain for the piece of the function represented by f(x) = x + 1?x < –1–1 ≤ x ≤ 11 ≤ x < 2x > 1
  
• read this passage from president reagan’s speech to holocaust survivors to identify an appeal. we must see to it that the immeasurable pain of the holocaust is not dehumanized, that it is not examined clinically and dispassionately, that its significance is not lost on this generation or any future generation. though it is now a dry scar, we cannot let the bleeding wound be forgotten. only when it is personalized will it be real enough to play a role in the decisions we make. those victims who cannot be with us today do a vital service to mankind by being remembered. but we must be their vessel of remembrance. this reunion is part of our duty to them. –speech to holocaust survivors, ronald reagan which type of appeal does reagan use in this passage? which pair of words or phrases from the passage best indicates the type of appeal used?
  
• lea wants to maintain strong bones as she ages. which bone-strengthening activity should she incorporate into her current plan?
  
• digestion is divided into four parts, ingestion, digestion, absorption, and elimination. which revision is necessary? add a colon after “divided” add a colon after “is” remove the comma after “absorption” change the comma after “parts” to a colon
  
• you do not need to use a jack stand with a hydraulic jack or lift. true false