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In Spanish we use the imperfect tense to describe an ongoing event in the past.
For example, 'She used to talk a lot'.
For verbs ending in 'ar', you take off the 'ar' and add the correct imperf...

Let’s call (f(x)=2x+c) equation 1, (g(x) = cx+5) equation 2 and (fg(x)= 6x+d) equation 3.
Start by finding fg(x) in terms of c by substituting (equation 2) into (equation 1) to get (fg(x)= 2(cx +5) +...

El cohete fue construido por ingenieros europeos en EE. UU. hace 6 meses. Ingenieros: we have to remember that in Spanish the noun goes before the adjectives, so t...

The pupil constricts (becomes smaller) to decrease the light entering the eye. This prevents damage to the eye.

x=-4, x=3