Answer:
see explanation
Step-by-step explanation:
Since BD bisects ∠ ABC , then
∠ ABD = ∠ DBC , substitute values
3x + 4 = 55 ( subtract 4 from both sides )
3x = 51 ( divide both sides by 3 )
x = 17
Step-by-step explanation:
answer 30- supplying water to the plants at a specific interval
answer-31 there are five major groups of microorganisms they are : bacteria,fungi algae, protozoa,viruses.
answer-35 the process by which the young form of insects and some animals develops into adult.
answer - 37 sounds that can be here are called audible and the sound frequency that we cannot hear are called in audible sound
answer-34 the rain that contains the chemicals in it from the factories
answer-38 catract is a disease which causes blurrness in the eye lens
Answer:
13x-5y-10
Step-by-step explanation:
You should know that cos2x =1-2sin^2x, so you substitute and take everything to one side. After that I took out a common factor of sinx which simplified my equation and gave me my first solution x=0. I go and find the relative acute angle in my second solution 2sinx+1=0, and as the value of raw is negative you have to obtain two solutions from where sin is negative. And you are given all you solutions. Hopefully this helps, if you don’t understand what I am saying just ask me anything. :)
