Solve the following system of equations by elimination
1 answer:
Answer:
y = -6
x = 1
Step-by-step explanation:
-x + 2y = -13
-x - 2y = 11
Sum the equations:
-x -x = -2x
+2y - 2y = 0
-13 + 11 = -2
then
-2x = -2
x = -2/-2
x = 1
from the first eq.
-x + 2y = -13
-1 + 2y = -13
2y = -13 + 1
2y = -12
y = -12/2
y = -6
check:
from the second eq.
-x -2y = 11
-1 -(2*-6) = 11
-1 -(-12) = 11
-1 + 12 = 11
You might be interested in
Answer: y < -5 or y > 8
<u>Step-by-step explanation:</u>
Graph: ←---------o -1 8 o------------→
Interval Notation: (-∞, -5) ∪ (8, ∞)
Answer:
None! .7632 is smaller than 9.
Step-by-step explanation:
Answer:
62.5%
Step-by-step explanation:
(56 - 62) / 4 = -1.5 z score = 0.0668
(64 - 62) / 4 = 0.5 z score = 0.6915
0.6915 - 0.0668 = 0.6247
Rounded this becomes 62.5%
Answer:
A) 13.4 feet
Step-by-step explanation:
You need to use the Pythagorean theorem:
L = 
= 13,4 feet
Answer:
Yes
Step-by-step explanation:
I think it looks right I hate when teacher give you work but no telling you how to do it
