Answer:
Option 2
Step-by-step explanation:
Diameter = 14
Radius = 7
Volume = 4/3 × pi × 7³
Answer:
(2, 5 )
Step-by-step explanation:
Given the 2 equations
3x + 2y = 16 → (1)
2x + y = 9 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate the y- term
- 4x - 2y = - 18 → (3)
Add (1) and (3) term by term to eliminate y
- x = - 2 ( multiply both sides by - 1 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
3(2) + 2y = 16
6 + 2y = 16 ( subtract 6 from both sides )
2y = 10 ( divide both sides by 2 )_
y = 5
solution is (2, 5 )
I am not 100% positive but from what I remember learning I think the answer you are looking for on the first question is C.
2nd option , multiply each side by -5
Answer:
17
Step-by-step explanation:
Use the distance equation.
d² = (x₁−x₂)² + (y₁−y₂)²
The order doesn't matter. If I choose (x₁, y₁) to be (8, 4) and (x₂, y₂) to be (-7, -4), then:
d² = (8−(-7))² + (4−(-4))²
d² = 15² + 8²
d² = 289
d = 17
