Answer is -8
why ? Because there’s only a number that’s negative so if one number is negative then the answer is gonna be negative
Answer:
(23/2, 1/2)
Step-by-step explanation:
Let's solve this system through elimination by addition/subtraction:
Divide all three terms of the first equation by 3. This results in the equivalent system
-2x - 2y = 33
2x + 4y = -32
Combining like terms results in:
2y = 1, and so y = 1/2.
Let's use the first equation and y = 1/2 to find x:
-6x - 6(1/2) = 66
This becomes -6x - 3 = 66, or -6x = 69, or x = -69/6 , or x = 23/2
The solution is thus (23/2, 1/2)
-
-2(x+5)=-6x+4(x-2)
-2x-10=-6x+4x-8
-2x+6x-4x=10-8
0x=2( unreasonable)
Answer:
Vw=6
Step-by-step explanation:
Answer:
Percentage error is 0.0024 %
Step-by-step explanation:
Initial average distance between Earth and moon = 384467 km
Distance measure by the scientist = 384476 km
Total variation in the distance calculation = 384476 – 384467 = 9 km.
Now we can find the percentage by dividing the variation in distance from the initial measurement and then multiply with hundred.
Percentage error = ( 9 / 384467 ) × 100 = 0.0024 %
