ANSWERS: 2
  • If you really want an answer, try really asking the question below, I use a common computer convention where * means multiply because it is possibly but tricky to get the multiply sign. Question 1 - get hold of a calculator, punch in 21 and hit the square root key. Multiply that by 10. When you have brackets it means evaluate what's in the brackets first. When you have things side by side, as 6 sqrt21, it means multiply. So does (2+3)(4+5) means (2+3)*(4+5) When you have multiply/divide and add/subtract in a row, you do the multiply/divide first, and then add/subtract the results of doing the multiply/divide. This is called operator precedence. so 4 sqrt9 + 7 = 4 * sqrt9 + 7 = 4 * 3 + 7 = 12 + 7 = 19 now get out that calculator and do it. Question 2 is incomplete i can't even start to look at it
  • yeah here i am only doing the first one but i have to tell you if you use this method to get your answers instead of studing you will never learn. And i could be wrong too but i think i'm right... (9 x 2.64575131) - (10 x 4.58257569) * (6 x 5.19615242) + 4.58257569) = -787.209243

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