Mathematics

Mathematics, 25.06.2019 23:00, symaria

If a=-3 and b=2, evaluate 3b -5a and 2a-6/2 and find their sum.

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Mathematics, 03.09.2019 17:10, lexiiiee

One meaning of the word evaluate is to find the value of an expression. to evaluate, replace a variable with a number and calculate the result. for example, when you are asked to evaluate the expression 4x ? 2 when x = ? 7, you would put ? 7 in place of the variable and calculate: 4 · (? 7) ? 2 = ? 30. evaluate the expressions below for the given values of x and y. homework ? 6/x + 9 if x = 3 8x ? 3 + y if x = 2 and y = 1 2xy if x = 5 and y = ? 3 2x2 ? y if x = 3 and y = 8

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Mathematics, 14.09.2019 14:10, PatrickHB

Section a. some with those questions1(i)without using a calculator or tables, simplify10.04) - 8(41)(16)(ii,)show that √18+ √50 - √72 = 2√2(iii) without using tables or calculators, evaluate0.25 x 2195 - 1795 x 0.25(iv) given that x? - ? 135 and x - y = 9. find the value of x and y5. find the icf of 18,42 and 486 without using tables or calculators, evaluate11log 2 - log, 48+ log307. solve the pair of simultaneous equations2x+3y = 2y-x =8. use logarithm tables to evaluate --780×0.25÷1.099. find the equation of a line passing through the point. (2,-1) and (5,8)1o factorize the expression 3x²+10x+3.hence find the value of x when3x² - 10x + 3 = 0

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Mathematics, 24.09.2019 23:11, Mamiwork2

One meaning of the word evaluate is to find the value of an expression. to evaluate, replace a variable with a number and calculate the result. for example, when you are asked to evaluate the expression 4x ? 2 when x = ? 7, you would put ? 7 in place of the variable and calculate: 4 · (? 7) ? 2 = ? 30. evaluate the expressions below for the given values of x and y. homework ? 6/x + 9 if x = 3 8x ? 3 + y if x = 2 and y = 1 2xy if x = 5 and y = ? 3 2x2 ? y if x = 3 and y = 8

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Physics, 24.10.2019 17:43, elisesnelson

Aparticle is represented by the following wave function: ψ(x) = 0 x < −l/2 = c(2x/l + 1) − l/2 < x < 0 = c(−2x/l + 1) 0 < x < +l/2 = 0 x > +l/2 (a) use the normalization condition to find c. (b) evaluate the probability to find the particle in an interval of width 0.010l at x = l/4 (that is, between x = 0.245l and x = 0.255l. (no integral is necessary for this calculation.) (c) evaluate the probability to find the particle between x = 0 and x = +l/4. (d) find the average value of x and the rms value of x: xrms = (x2)av.

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If a=-3 and b=2, evaluate 3b -5a and 2a-6/2 and find their sum....

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