Answer:
(- 3, - 2 )
Step-by-step explanation:
Given the 2 equations
- 2x + 5y = - 4 → (1)
3x + 4y = - 17 → (2)
Multiplying (1) by 3 and (2) by 2 and adding the result will eliminate x
- 6x + 15y = - 12 → (3)
6x + 8y = - 34 → (4)
Add (3) and (4) term by term
(- 6x + 6x) + (15y + 8y) = (- 12 - 34), that is
23y = - 46 ( divide both sides by 23 )
y = - 2
Substitute y = - 2 in either of the 2 equations.
Substituting in (2)
3x - 8 = - 17 ( add 8 to both sides )
3x = - 9 ( divide both sides by 3 )
x = - 3
Solution is (- 3, - 2 )
Answer:
r = 3cm
h = 20cm
SA = 433.32cm^3
Step-by-step explanation:
If you use 3.14 for pi you will get 433.32.
Plz mark brainliest if this helped!!!
1.) It snowed like it was the North Pole!
2.) We hit the beach and stayed all day.
3.) I had barrels of fun at the beach!
372 books will be there and 20 shelves can hold 360 books it will need 21 shelves
The answer is the last option
