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Question Number 16014    Answers: 1   Comments: 0

A cirlce is drawn to touch the sides of a triangle whose sides are 12cm,10cm,and 9cm. Find the radius of the circle.

$$\mathrm{A}\:\mathrm{cirlce}\:\mathrm{is}\:\mathrm{drawn}\:\mathrm{to}\:\mathrm{touch}\:\mathrm{the} \\ $$$$\mathrm{sides}\:\mathrm{of}\:\mathrm{a}\:\mathrm{triangle}\:\mathrm{whose}\:\mathrm{sides}\:\mathrm{are} \\ $$$$\mathrm{12cm},\mathrm{10cm},\mathrm{and}\:\mathrm{9cm}.\:\mathrm{Find}\:\mathrm{the}\: \\ $$$$\mathrm{radius}\:\mathrm{of}\:\mathrm{the}\:\mathrm{circle}. \\ $$

Question Number 15987    Answers: 1   Comments: 1

Question Number 15982    Answers: 0   Comments: 3

Question Number 15969    Answers: 0   Comments: 17

Question Number 15919    Answers: 0   Comments: 1

multiply 3x+4y+5x−8y

$${multiply}\:\mathrm{3}{x}+\mathrm{4}{y}+\mathrm{5}{x}−\mathrm{8}{y} \\ $$

Question Number 15917    Answers: 1   Comments: 1

Question Number 15908    Answers: 1   Comments: 7

Question Number 15904    Answers: 2   Comments: 1

Question Number 15784    Answers: 1   Comments: 1

Question Number 15782    Answers: 1   Comments: 1

Question Number 15700    Answers: 1   Comments: 1

Question Number 15699    Answers: 1   Comments: 0

3+5x=58

$$\mathrm{3}+\mathrm{5x}=\mathrm{58} \\ $$

Question Number 15672    Answers: 1   Comments: 0

solve the equation: {5^x } +5x=140 please show workings.....

$$\:{solve}\:{the}\:{equation}: \\ $$$$\:\:\left\{\mathrm{5}^{{x}} \right\}\:+\mathrm{5}{x}=\mathrm{140} \\ $$$${please}\:{show}\:{workings}..... \\ $$

Question Number 15642    Answers: 1   Comments: 0

Question Number 15572    Answers: 2   Comments: 1

Question Number 15567    Answers: 2   Comments: 3

Question Number 16613    Answers: 1   Comments: 2

Question Number 15440    Answers: 3   Comments: 9

Question Number 15434    Answers: 1   Comments: 8

Question Number 15318    Answers: 2   Comments: 6

Question Number 15175    Answers: 2   Comments: 1

Question Number 15170    Answers: 2   Comments: 2

Question Number 15017    Answers: 0   Comments: 0

Calculate the heat neccessary to raise the temperature of 5.00 mol of butane from 290K to 593K at a constant pressure. where Cp(19.41 + 0.233T)J/mol/K

$$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{heat}\:\mathrm{neccessary}\:\mathrm{to}\:\mathrm{raise}\:\mathrm{the}\:\mathrm{temperature}\:\mathrm{of}\:\mathrm{5}.\mathrm{00}\:\mathrm{mol}\:\mathrm{of}\:\mathrm{butane} \\ $$$$\mathrm{from}\:\mathrm{290K}\:\mathrm{to}\:\mathrm{593K}\:\mathrm{at}\:\mathrm{a}\:\mathrm{constant}\:\mathrm{pressure}.\:\mathrm{where}\:\mathrm{Cp}\left(\mathrm{19}.\mathrm{41}\:+\:\mathrm{0}.\mathrm{233T}\right)\mathrm{J}/\mathrm{mol}/\mathrm{K} \\ $$

Question Number 14965    Answers: 2   Comments: 2

Question Number 14964    Answers: 0   Comments: 0

proof that ∀ x,y ∈N ∃ a,b,c ∈N ∍ (4/(x^2 +y^2 ))=(1/a) + (1/b) + (1/c)

$$\mathrm{proof}\:\mathrm{that}\: \\ $$$$\forall\:{x},{y}\:\in\mathbb{N}\:\:\exists\:{a},{b},{c}\:\in\mathbb{N}\:\backepsilon\:\frac{\mathrm{4}}{{x}^{\mathrm{2}} +{y}^{\mathrm{2}} }=\frac{\mathrm{1}}{{a}}\:+\:\frac{\mathrm{1}}{{b}}\:+\:\frac{\mathrm{1}}{{c}} \\ $$

Question Number 15212    Answers: 1   Comments: 1

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