What is the d value in the following arithmetic sequence? -7, -2, 3, 8, … Solution:- The value of d = second term – first term d = -2 –…
Month: March 2015
Problem 631
Find the following statements. 1) 2 ∈ A . 2) 3 ∉ A. 3) A ⊂ U. 4) A ⊄ B . 5) A ≅ B. A ∩ B ,A…
Set Theory Symbols
Set Theory Symbols ∈ “is an element of” ∉ “is not an element of” ⊂ “is a proper subset of” ⊆ “is a subset of” ⊄ “is not a…
Problem 630
Evaluate the expression using order of operations. Solution:- = = = = =
Problem 629
Find expressions for the Revenue, Cost, and Profit from selling x thousand items. Item PriceFixed CostVariable Cost 195,503 -3×2 + 3480x – 100 Solution:- R=7000x (7 dollars per…
Problem 628
Evaluate the expression, given x = -2, y = 3, and a = -4. -6(x + 4) + 5a2 Solution:- Put all values -6(-2+4)+5(-4)2 = 12-24+5(16) = -12+80…
Problem 627
Evaluate the expression, given x = -2, y = 3, and a = -4. 2a – 7y – 4x Solution:- Put all values 2(-4)-7(3)-4(-2) = -8-21+8 = -21…
Problem 626
Solve the equation. 20t + 1 = 11t + 7 Solution:- 20t-11t=7-1 9t=6 t= Answer t=
Problem 625
Solve the equation for x. x = (6x – 2)(2k + 1) Soluiton:- X=6x(2k+1)-2(2k+1) X=12xk+6x-4k-2 x-12xk-6x=-4k-2 x(1-12k-6)= -4k-2 x(-12k-5)= -4k-2 x=(-4k-2)/(-12k-5) x=(4k+2)/(12k+5)
Problem 624
Find expressions for the Revenue, Cost, and Profit from selling x thousand items. Item Price Fixed Cost Variable Cost 58,684 3698x Solution:– Revenue=5000x (5 dollar per item…
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