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Question Number 217590    Answers: 1   Comments: 0

Question Number 217589    Answers: 1   Comments: 0

Question Number 217588    Answers: 0   Comments: 0

Question Number 217587    Answers: 0   Comments: 0

Question Number 217586    Answers: 1   Comments: 0

Question Number 217579    Answers: 0   Comments: 4

f : R → R f(f(x)) = x^2 − x + 1 f(x) = ? Altered Question# 217541

$$\mathrm{f}\::\:\mathbb{R}\:\rightarrow\:\mathbb{R} \\ $$$$\mathrm{f}\left(\mathrm{f}\left(\mathrm{x}\right)\right)\:=\:\mathrm{x}^{\mathrm{2}} \:−\:\mathrm{x}\:+\:\mathrm{1} \\ $$$$\mathrm{f}\left(\mathrm{x}\right)\:=\:? \\ $$$$\mathrm{Altered}\:\mathrm{Question}#\:\mathrm{217541} \\ $$

Question Number 217575    Answers: 2   Comments: 0

Question Number 217569    Answers: 0   Comments: 0

sketch the graph of y=⌊x^2 ⌋ for n≤x<n+1

$${sketch}\:{the}\:{graph}\:{of}\:{y}=\lfloor{x}^{\mathrm{2}} \rfloor\:{for}\:{n}\leqslant{x}<{n}+\mathrm{1} \\ $$

Question Number 217568    Answers: 0   Comments: 0

skech the graph of y=⌊x+0.5⌋ for n≤x<n+1, where n is an integer

$${skech}\:{the}\:{graph}\:{of}\:{y}=\lfloor{x}+\mathrm{0}.\mathrm{5}\rfloor\:{for}\:{n}\leqslant{x}<{n}+\mathrm{1},\:{where}\:{n}\:{is}\:{an}\:{integer} \\ $$

Question Number 217567    Answers: 0   Comments: 0

Question Number 217565    Answers: 2   Comments: 1

Question Number 217541    Answers: 1   Comments: 0

f : R → R f(f(x)) = x^2 − x + 1 f(0) = ?

$$\mathrm{f}\::\:\mathbb{R}\:\rightarrow\:\mathbb{R} \\ $$$$\mathrm{f}\left(\mathrm{f}\left(\mathrm{x}\right)\right)\:=\:\mathrm{x}^{\mathrm{2}} \:−\:\mathrm{x}\:+\:\mathrm{1} \\ $$$$\mathrm{f}\left(\mathrm{0}\right)\:=\:? \\ $$

Question Number 217535    Answers: 2   Comments: 0

A two-digit number is such that the sum of its digits is 10. When the digits are reversed, the new number is 28 less than twice the original number. Find the original number.

$$\mathrm{A}\:\mathrm{two}-\mathrm{digit}\:\mathrm{number}\:\mathrm{is}\:\mathrm{such}\:\mathrm{that} \\ $$$$\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of}\:\mathrm{its}\:\mathrm{digits}\:\mathrm{is}\:\mathrm{10}.\:\mathrm{When} \\ $$$$\mathrm{the}\:\mathrm{digits}\:\mathrm{are}\:\mathrm{reversed},\:\mathrm{the}\:\mathrm{new}\:\mathrm{number} \\ $$$$\:\mathrm{is}\:\mathrm{28}\:\mathrm{less}\:\mathrm{than}\:\mathrm{twice}\:\mathrm{the}\:\:\mathrm{original}\:\mathrm{number}. \\ $$$$\:\mathrm{Find}\:\mathrm{the}\:\mathrm{original}\:\mathrm{number}. \\ $$

Question Number 217528    Answers: 0   Comments: 1

Question Number 217521    Answers: 1   Comments: 1

Question Number 217519    Answers: 1   Comments: 1

Question Number 217509    Answers: 1   Comments: 1

Question Number 217506    Answers: 1   Comments: 7

Question Number 217504    Answers: 0   Comments: 1

A 20% load is connected to the secondary coil of a transformer which has Nₚ to Nₛ ratio of 1/4 calculate the maximum current through the load if the input Vᵣₘₛ is 120V A 34 A B 24 A C 480 A D 480√2 A

$$ \\ $$A 20% load is connected to the secondary coil of a transformer which has Nₚ to Nₛ ratio of 1/4 calculate the maximum current through the load if the input Vᵣₘₛ is 120V A 34 A B 24 A C 480 A D 480√2 A

Question Number 217495    Answers: 1   Comments: 0

Question Number 217489    Answers: 0   Comments: 0

Question Number 217482    Answers: 0   Comments: 0

( n(√((n+1))) +(n+1)(√n) )^n +( n(√((n+1))) −(n+1)(√n) )^n =n^2 (n+1)(n+3)

$$\left(\:{n}\sqrt{\left({n}+\mathrm{1}\right)}\:+\left({n}+\mathrm{1}\right)\sqrt{{n}}\:\:\right)^{{n}} +\left(\:{n}\sqrt{\left({n}+\mathrm{1}\right)}\:−\left({n}+\mathrm{1}\right)\sqrt{{n}}\:\:\right)^{{n}} ={n}^{\mathrm{2}} \left({n}+\mathrm{1}\right)\left({n}+\mathrm{3}\right) \\ $$

Question Number 217448    Answers: 3   Comments: 2

Solve for x: (1+(√2) )^x +(1−(√2) )^x =14

$${Solve}\:{for}\:{x}: \\ $$$$\left(\mathrm{1}+\sqrt{\mathrm{2}}\:\right)^{{x}} +\left(\mathrm{1}−\sqrt{\mathrm{2}}\:\right)^{{x}} =\mathrm{14} \\ $$

Question Number 217447    Answers: 1   Comments: 14

Question Number 217441    Answers: 2   Comments: 0

∫_0 ^1 ((ln^3 (1−x))/x^3 ) dx=?

$$\int_{\mathrm{0}} ^{\mathrm{1}} \frac{\mathrm{ln}^{\mathrm{3}} \:\left(\mathrm{1}−{x}\right)}{{x}^{\mathrm{3}} }\:{dx}=? \\ $$

Question Number 217438    Answers: 0   Comments: 0

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