If 4 is subtracted from twice a number, the result is10 less than the number. find the number.

step-by-step explanation:

sounds & other waves originate from any vibrating object

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2