Answers created by Johnny L.

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• How do you solve the system of linear equations #x+y=-2# and #2x-y=5#?
  
• Question #be3fc
  
• Question #71ec3
  
• A number is less than one fourth the sum of three times the number and four. What is the number?
  
• Question #86b06
  
• You have to run 2.50 miles for gym class. How many meters must you run to be successful?
  
• How do you factor #28u ^ { 4} - 63u ^ { 2}#?
  
• You have a rack that can hold 30 CDs. You can fit 7 more CDs on the rack before the rack is full. How many CDs are in the rack?
  
• How do you find #p(-2)# if #p( n ) = 2^ { n }#?
  
• How do you combine #\sqrt { 27} + 3\sqrt { 12} - 9\sqrt { 8}#?
  
• Question #68d2d
  
• How do you simplify #1/x^(-5/4)#?
  
• Question #78d82
  
• Question #cee7d
  
• What is the vertex of # y=-3x^2 -4x-2#?
  
• A right triangle has sides A, B, and C. Side A is the hypotenuse and side B is also a side of a rectangle. Sides A, C, and the side of the rectangle adjacent to side B have lengths of #7 #, #4 #, and #1 #, respectively. What is the rectangle's area?
  
• How do you simplify #sqrt(20d) + 4sqrt(12d) - 3 sqrt(45d)#?
  
• Question #5ff20
  
• How do you draw a punnett showing all the possible blood types for the offspring produced by a type "O" mother and an a Type "AB" father?
  
• Question #c47d5
  
• How do you solve the system of equations #x- y = 7# and #- 2x + 5y = - 8#?
  
• Question #1c1f3
  
• What are the major types of interactions among organisms?
  
• The madreporite of a starfish would be located on what surface?
  
• Why are most random mutations bad?
  
• If all cells have the same genes, explain why skin cells are so different compared to heart cells?
  
• How do genetic drift, gene flow, mutation, nonrandom mating, and natural selection cause microevolution?
  
• How do you determine three consecutive positive integers such that the square of second, added to the third, is 133?
  
• What are the main functions of the cell membrane?
  
• How do endocytosis and exocytosis maintain homeostasis within the cell?
  
• A woman has type A blood. Her daughter has type O blood. What are the possible genotypes and blood types of the child's father?
  
• Question #8a9b0
  
• What does CHNOPS stand for?
  
• Can we use microscope slides more than once?
  
• Can we use microscope slides more than once?
  
• Question #c97a2
  
• Question #dd871
  
• If 1 light year is 63,240 AU (astronomical units), how far in AUs is Alpha Centauri, which is 4.32 light years from the Earth?
  
• How do you solve for x when you have #4x-2(3x-9) \le -4(2x-9)#?
  
• How does acid precipitation form?
  
• How do the littoral zone and the benthic zone differ?
  
• How do you evaluate the integral #int_0^4x^3+2x^2-8x-1#?
  
• What types of organisms are considered K selected?
  
• What are some examples of cladistics?
  
• How does the antiparallel structure of the double helix affect replication?
  
• What are carbohydrates?
  
• What is a bioindicator? What are some examples of bioindicators?
  
• How do multiple alleles affect the number of phenotypes?
  
• What are common mistakes students make with anticodons?
  
• What are some examples of organisms in the phylum chordata?
  
• How do tube feet help echinoderms move?
  
• What levels of organization include abiotic factors?
  
• How do you calculate surface area to volume ratio of a cylinder?
  
• What are common mistakes students make with genetics ?
  
• How do bacteria differ from a virus?
  
• What is the need for gas exchange in organisms?
  
• Structurally, how does a polysaccharide differ from a polypeptide?
  
• What are some examples of organisms in the phylum arthropoda?
  
• How are RNA and DNA different?
  
• What are the monomers and polymers of carbohydrates?
  
• What is the importance of nitrogen fixation?