Alfonso

Newest questions posted by Alfonso
  1. math

    Maya needs to make a total of deliveries this week. So far she has completed of them. What percentage of her total deliveries has Maya completed?
  2. Calculus

    Suppose a player is running from first to second base 20ft/s. Find rate at which distance from home plate is changing when the player is 30ft away from 2nd base?(home plate to 1st and 3rd base is 90ft)
  3. Discrete math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written
  4. Math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written
  5. Physics

    Many people mistakenly believe that the astronauts who orbit the Earth are "above gravity." Calculate g for space shuttle territory, 290 kilometers above the Earth's surface (dashed line in sketch). Earth's mass is 6 1024 kg, and its radius is 6.38 106 m
  6. Physics

    Surprisingly, very few athletes can jump more than 2.7 ft (0.82 m) straight up. Use d = 1/2 gt2 and solve for the time one spends moving upward in a 0.82 m vertical jump. Then double it for the "hang-time" -- the time one's feet are off the ground. Can you
  7. math

    Which of the following statements is true? A. all trapezoids are similar B.all isosceles triangles are the same C.all rectangles are similar D.all equilateral triangles are similar
  8. algebra

    formula= P(x)=.1x^2+50x-300 where x is number sold what is ans. if P(100)=.1(100)^2+50(50)-300
  9. bio

    how does a Dichotomous Key work. Thank you for using the Jiskha Homework Help Forum. Be sure to visit the following sites: 1. http://students.ed.qut.edu.au/n2364379/MDB377/DichotomousKey.html 2. (Broken Link Removed) 3.