The answer is D hope that helped
Answer:
m=1.5
Step-by-step explanation:
simultaneously
3m+9n=6
- m+9n=3
2m=3
m=1.5
An equation is formed of two equal expressions. The solution of the equation (5x+2)² + 15x + 6=0 is -0.4 and -1.
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The solution to the equation,
(5x+2)² + 15x + 6=0
25x² + 4 + 20x + 15x + 6 = 0
25x² + 35x + 10 = 0
Plotting the equation on the graph, the value of x is,
x = -0.4, -1
Hence, the solution of the equation (5x+2)² + 15x + 6=0 is -0.4 and -1.
Learn more about Equation:
brainly.com/question/2263981
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Answer:
csc(-112°)=-csc(68°)
Step-by-step explanation:
Since cosec(x) and sin(x) are reciprocals of each other,
cosec(-112°)=
=
=
(since 112=180-68)
=
(since sin(180-x)=sinx)
=
(since 
)
=-cosec(68°)
Answer:
A
Step-by-step explanation:
A semester is about 1/2 of the school year which is 4 1/2 or 5 months, its not instant because its 5 months long its not short term commitment because you will have to work with it, and its not a short term goal because 5 months is quite a while in my opinion.
plz give brainliest
