density= mass/volume
mass= densiy x volume
mass= 6.3 g/mm^3 x 30mm^3= 189 g
Answer:
Step-by-step explanation:
Go over 2 x units for every 1 y unit
Answer:
x=−15+√10 or x=−15−√10
Step-by-step explanation:
Let's solve your equation step-by-step.
(x+15)2−10=0
Step 1: Simplify both sides of the equation.
x2+30x+215=0
For this equation: a=1, b=30, c=215
1x2+30x+215=0
Step 2: Use quadratic formula with a=1, b=30, c=215.
x=−b±√b2−4ac/2a
x=−(30)±√(30)2−4(1)(215)/2(1)
x=−30±√40/2
x=−15+√10 or x=−15−√10
In the first equation, we have 3y. In the second equation we have y.
If we multiply the second equation by 3, then if we subtract both the equations, we will be able to eliminate y.
If we multiply the second equation by -3, then if we add both the equations, we will be able to eliminate y.
The answer to your question is: 3 and -3.
