Question

what is the mean proportion between 64 and 81

Answer 1

if they are in proportion then ...
64:x: 81
=64:x::x:81
product of extremes= product of means
64×81=xsq
5184=xsq
x=72
=64:72:81

Answer 2

Answer:

Step-by-step explanation:Given: SP║RQ, ∠R = 90° and ∠Q = 130°.

To find: The measure of ∠P.

Answer:

It is given that SP║RQ. So let us assume that PQ is the transversal.

Therefore, ∠P + ∠Q = 180° (Co - interior Angles are Supplementary)

∠P + 130° = 180°

∠P = 180° - 130°

∠P = 50°

Now let us assume that SR is the transversal.

Therefore, ∠S + ∠R = 180° (Co - interior Angles are Supplementary)

∠S + 90° = 180°

∠S = 180° - 90°

∠S = 90°