Answer:
x=9.5, y=5.75
Step-by-step explanation:
2x-5=14, 3x+2y=40
focus on 2x-5=14 first:
2x-5=14 (add 5 to both sides) 2x=19(divide both sides by 2) x=9.5
Now subtitute x into the second equation and find y:
3(9.5)+2y=40(simplify) 28.5+2y=40(subtract 28.5 on both sides) 2y=11.5(divide both sides by 2) y=5.75
Answer:
16 and 13 are the only two laying along the same line with only a single dividing line between them and no extra space.
Step-by-step explanation:
First, you would turn 2 1/9 into an improper fraction. 2 1/9 is now turned into 19/9. Now, you need to find a common denominator between 19/9 and 5/6. The least common denominator, which is the smallest number that both denominators can multiply to, is 18. 19/9 is turned into 38/18 (which is still 19/9 when simplified). 5/6 is turned into 15/18. Now, since both 38/18 and 15/18 have a common denominator, we can write the fraction like (38-15)/18. 38-15 is 23, so your answer is 23/18. When simplified, 23/18 becomes 1 5/18.
Answer:
Step-by-step explanation:
It seems to me that you are being asked for what values of x does f(x) + g(x) = 0. Which means that you need to add them together, combine like terms if possible, and then factor. Adding them together gives you
This doesn't factor to integer solutions, so we will use the quadratic formula to factor it. The quadratic formula is as follows:
For us, a = 1, b = 6, c = 4. Filling in accordingly:
and simplifying a bit:
The square root of 20 can be simplified down to 2√5, so plugging that in gives us:
and then reducing everything down to its lowest terms:
x = -3 ± √5. Those are irrational numbers but they are the numbers that make that addition o to 0.
Answer:
A
Step-by-step explanation:
|((experimental - theoretical) / theoretical)| x 100
5.5 - 5.62 / 5.62 = -.0213
|-.0213| = .0213
.0213 x 100 = 2.13