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Conjuga los verbos ser y estar en presente de indicativo y explica la diferencia entre ambos.

Ser: Yo soy; Tú eres; Él/Ella/Usted es; Nosotros/Nosotras somos; Vosotros/Vosotras sois; Ellos/Ellas/Ustedes son.Estar: Yo estoy; Tú estás; Él/Ella/Usted está; Nosotros/Nosotras estamos; Vosotros/Vosotras...

Answered by Lluis Xavier T. • Spanish tutor

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Write x^2 + 4x + 18 in the form (x + a)^2 + b, where a and b are constants to be determined.

(x + 2)^2 + 14. a = 2, b = 14

Answered by Danqing H. • Maths tutor

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The functions f and g are such that f(x)=5x+2 and g(x)=-x-4. a) Find fg(x). b) Find ff(x). c) Solve fg(x) = ff(x).

a) fg(X) = 5(-x-4)+2 = -5x-20+2 = -5x-18b) ff(X) = 5(5x+2)+2 = 25x+10+2 =25x+12c) 25x+12=-5x-18 25x+5x=-18-12 30x=-30 x=-1

Answered by Maria A. • Maths tutor

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Explain the tenses used in the following utterance: "while I was walking, my mother rang me".

The imperfect tense should be used when translating "while I was walking", followed by the preterit when "my mother rang me".The imperfect is used to give context prior to completed ac...

Answered by William H. • Spanish tutor

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Find g(f(x)) where g(x)=2x+4 and f(x)=x^2+1.

With functions of functions you work from the inside out, so you substitute the function f(x) for the x in g(x). We know that f(x)=x²+1 and g(x)=2x+4. In this question you therefore replace the...

Answered by Georgina M. • Maths tutor

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