Which statement is true?
select one:
a. a ten degree angle is congruent to a 10 degree angle
b. a congruent angls is always 90 degrees
c. none of these
d. congruent angles always add up to 90 degrees

The correct statement among the given statement is:

      a.  A ten degree angle is congruent to a 10 degree angle.

Congruent angles--

Also, the construction of such a angle is simple with the help of a compass and a straight edge.

Then they add up to 60+60=120 degrees.

and hence options: b and d are incorrect.

ok

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752