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Calculator Algebra!

Reminder: Each letter represents a number. p q. p q. 7 4.3. p q. 7 4.3. =. x r. x 11. Calculator Algebra!. p = 7 q = 4.3 r = 11 s = 6.2. use calculator for 7 ÷ 4.3 =. =. copy from calculator display. = 1.62790698. = 1.63. Round. 7 ÷ 4.3 x 11 or 7 x 11 ÷ 4.3.

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Calculator Algebra!

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  1. Reminder: Each letter represents a number p q p q 7 4.3 p q 7 4.3 = x r x 11 Calculator Algebra! p = 7 q = 4.3 r = 11 s = 6.2 use calculator for 7 ÷ 4.3 = = copy from calculator display = 1.62790698 = 1.63 Round 7 ÷ 4.3 x 11 or 7 x 11 ÷ 4.3 = 17.906977 = 17.9 M May

  2. Reminder: Each letter represents a number 7 7 + 4.3 p p +q 7 - 11 7 + 11 p - r p + r Use Brackets! Estimate 7÷10 < 1 p = 7 q = 4.3 r = 11 s = 6.2 use calculator for 7 ÷ ( 7+ 4.3) = = copy from calculator display = 0.61946703 = 0.62 Round (7 - 11) ÷ (7 +11) = Estimate - 4 ÷20 - 0.2 = - 0.222222222 = - 0.222 M May

  3. 4.3 x 6.2 ( 7 x 4.3 ) 6.2 4.3 x 7 r - s p + q r q p + s q r p + r 6.2 4.3 s q p r s p q 6.2 4.3 s q s q x p x 7 ( 11 - 6.2 ) ( 7 + 4.3 ) 4.3 x 11 ( 7 + 11 ) 11 x 4.3 ( 7 + 6.2 ) Given that p = 7 q = 4.3 r = 11 s = 6.2 find the value of each of the following Remember to estimate too! r ( p + q ) 11 ( 7 + 4.3 ) = 1.44 = 10.1 = 0.206 = 124.3 = 0.886 = 0.425 = 3.58 = 2.63 M May

  4. √ ( q 2 + r 2 ) = √ (7 x 4.3) 7 x ( 4.3 - 11 ) 6.2 ( 6.2 - 11 ) ( 11 x 4.3 ) p ( q - r ) s s - r r q √ ( 4.3 2 + 11 2 ) Given that p = 7 q = 4.3 r = 11 s = 6.2 find the value of each of the following p q r s p q ( r - s ) = 7 x 4.3 x 11 x 6.2 = 7 x 4.3 x ( 11 - 6.2) = 2052.82 = 144.48 = - 7.565 s 2 + r 2 √ p q = 6.2 2 + 11 2 = 159.44 = 5.49 = 11.81 = - 0.1015 M May

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