When 3 is substituted for x, in the equation y=x2-4 what is y.

y = 2

Step-by-step explanation:

plug in the x value given, y = 3(2) - 4

simplify, y = 6 - 4

y = 2

y=5

Step-by-step explanation:

Substitute 3 in for x

y=x^2-4

y=(3^2)-4

Find the exponent first

y=9-4

Subtract

y=5

Hope this helps! :)

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .