Please be more clear on what you want us to do
All you have to do is 4 to the power of -3 and what that answer is you get y. You will do the same for 3. You will do 4 to the power of 3 which comes out to be 4*4*4.
times by a on both sides
a(a+8)= -5
expand brackets
a^2 + 8a = -5
minus 5 on both sides to set equal to 0
a^2 + 8a -5 = 0
use quadratic formula to get 2 solutions
-
type into calculator. one solution from + other from -
Answer:
These two triangles are congruent.
Step-by-step explanation:
You know this bc the markings on the drawing show that Angle B and Angle D are congruent. Also that AB is parallel to CD. This means that Angle BAC and Angle DCA are congruent by ALTERNATE INTERIOR ANGLES. Also, AC is congruent to itself. That makes the two triangles congruent by ANGLE-SIDE-ANGLE.
Now, you need to know that "congruent" triangles (and shapes in general) are the same size and shape. "Similar" triangles (shapes) are the same shape but not necessarily the same size.
16/20 = 8(2)/10(2) = 8/10. 8/10 can also be further reduced to 4/5.