B is the answer
Hope this helps
Answer:
75
Step-by-step explanation:
9x5=45
15x5=75
Answer:
The solution of the equation 9x=7(x+2) is:
Option D) 7
Step-by-step explanation:
9x=7(x+2)
Eliminating the parentheses applying distributive property:
9x=7(x)+7(2)
Multiplying:
9x=7x+14
Grouping the x's on the left side of the equation: Subtracting 7x both sides of the equation:
9x-7x=7x+14-7x
Subtracting:
2x=14
Solving for x: Dividing both sides of the equation by 2:
2x/2=14/2
Dividing:
x=7
Solution: x=7 (option D)
Answer:
The force's magnitude will be: F = k·|a| with k being the spring's elastic constant and |a| is the absolute value of the displacement.
The direction can be any, as depends on the reference system you choose. If the reference system is directed in the opposite way of the elastic force, it will be negative, else positive, but in any case the elastic force will be directed towards the equilibrium position of the spring.
We can input the point
remember that (x,y)
so we are given (-5,-18)
so when x=-5, y=-18
so
-18=-5m+2
minus 2 both sides
-20=-5m
divide both sides by -5
4=m
m=4
answer is 2nd option