Answer:
5: ? = 52
9: x = 10
Step-by-step explanation:
wish I could help but don't now whatn you are saying
Solution:
A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer.
Hence, the number that can be expressed as a product of an integer by itself is;

Therefore, the perfect square is 81.
OPTION B is correct.
Not an inequality but d-m=5v. (d-m)/5=v. Basically just isolate the variable
Using ur calculator you should get 15 degrees ( Use the sin-1 key.).
Angle complementary to x is 90-15 = 75 degrees
and as sin x = cos(90-x) then cos 75 is also equal 0.2588