Algreba 2 crossword

123456789101112131415161718192021
Across
  1. 2. identity is an equality relating one mathematical expression A to another mathematical expression B (ex.( x + y ) 2 = x 2 + 2 x y + y 2 (x+y)^2 = x^2 + 2xy + y^2 (x+y)2=x2+2xy+y2)
  2. 5. real number that cannot be expressed as the quotient of two integers (ex.√2, √3, √5, √11, √21, π(Pi) )
  3. 6. number that can be written as a ratio (or fraction) of two integers (ex.1/2, 1/5, ¾)
  4. 8. + 2 = 2 + 4 4 + 2 = 2 + 4 4+2=2+44)
  5. 9. numerical quantity that is not a whole number. (ex.⅓, ⅔, ⅖, 3/7, 5/9,)
  6. 12. numbers that include natural numbers and zero (ex.0, 1, 2, 3, 4, 5, 6, and 7)
  7. 13. divide something or give a share or part of something (ex.8 × ( 20 + 7 ) = 8 × 20 + 8 × 7 = 160 + 56 = 216)
  8. 14. a whole number (not a fractional number) that can be positive, negative, or zero. (ex.-5, 1, 5, 8, 97, and 3,043)
  9. 18. largest number that can divide evenly into two other numbers (ex.12, 20, and 24 have two common factors: 2 and 4)
  10. 19. can add or multiply regardless of how the numbers are grouped (ex.( 2 + 3 ) + 4 = 2 + ( 3 + 4 ) (2 + 3) + 4 = 2 + (3 + 4) (2+3)+4=2+(3+4)
  11. 20. reciprocal (ex.5 ✕ 2 = 10 and 10 ÷ 2 = 5)
  12. 21. prime factors of a positive integer are the prime numbers that divide that integer exactly ex.if we take the number 30. We know that 30 = 5 × 6, but 6 is not a prime number.)
Down
  1. 1. non-zero common number (ex.Multiples of 6 are: 6, 12, 18, 24, 30, 36)
  2. 3. general term meaning written down in the way most commonly accepted It depends on the subject (ex.1.98 ✕ 10¹³; 0.76 ✕ 10¹³)
  3. 4. numbers that we use when we are counting or ordering (ex.5, 7, 21, 24, 99, 101)
  4. 7. an algebraic equation of the form y=mx+b (ex.2x – 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, 3x – y + z = 3.)
  5. 10. addition and multiplication of numbers, you can change the order of the numbers in the problem and it will not affect the answer.
  6. 11. magnitude of a real number without regard to its sign.(ex. the absolute value of 5 is 5, and the absolute value of −5 is also 5)
  7. 15. ordered pair of numbers a and b, written a / b where b does not equal 0. (ex. if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3)
  8. 16. number or ratio that can be expressed as a fraction of 100. (ex. 10% is equal to 1/10 fraction. 20% is equivalent to ⅕ fraction. 25% is equivalent to ¼ fraction.)
  9. 17. equation in which two ratios are set equal to each other. (ex. 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls)