Solve the following system using elimination:
{x - 2 y = -23 | (equation 1)
{x - y = 7 | (equation 2)
Subtract equation 1 from equation 2:
{x - 2 y = -23 | (equation 1)
{0 x+y = 30 | (equation 2)
Add 2 × (equation 2) to equation 1:
{x+0 y = 37 | (equation 1)
{0 x+y = 30 | (equation 2)
Collect results:
Answer: {x = 37 , y = 30
Answer: The graph of linear inequalities include a dashed line if they are greater than or less than but not equal to. Linear equations, on the other hand, include a solid line in every situation. Moreover, linear inequalities include shaded regions whereas linear equations do not.
Step-by-step explanation:
30 is the median value
Hope that this helped
Pic:
V = 1/3 × 4^2 × 3 + 4^3
V = 16 + 64
V = 80
words:
d = 12, r = 6
SA = 4 × pi × 6^2
SA = 144pi
V = 4/3 × pi × 6^3
V = 288pi
SA to V is 1 to 2 (1:2)