Step-by-step explanation:
x^2=9/49
√x^2=√9/49
x=+or-3/7
Answer:
cos 78⁰.
Step-by-step explanation:
Use cos 2A = cos^2 A - sin^2 A
so cos^2 39 - sin^2 39 = cos (2*39) = cos 78.
Answer:
well learn math
Step-by-step explanation:
did you know that everyday is someone's birthday? if you don't
then Three piggies in the city.
Distance-Rate-Time Problems. An object that moves at a constant rate is said to be in uniform motion. ... Uniform motion problems may involve objects going the same direction, opposite directions, or round trips. In the diagram below, the two vehicles are traveling the same direction at different rates.
