Answer:
Your answer is (4,1).
Step-by-step explanation:
5x - 2y = 18
5<em>(4)</em> - 2<em>(1)</em> = 18
20 - 2 = 18
18 = 18 <em>(Which means it's correct)</em>
Let me know if you need anymore help!
Answer:
A, B, and E
Step-by-step explanation:
A. The terms 4x³ and 8x have a common factor (it is 4x)
B. The terms 4x3 and – 6x2 have a common factor (it is 2x²)
E. The polynomial can be grouped in different ways to factor by grouping.
( (4x³ - 6x²) + (8x - 12) ⇒ 2x²(2x-3) + 4(2x-3) ⇒ (2x²+4)(2x-3) )
Answer: -7.408%
Explanation: The formula for percent error is:
(experimental - theoretical) / theoretical * 100. The experimental value is 50, or your guess. The theoretical value is 54, or the actual value. The theoretical value is the value it should be.
(50-54)/54 = -.074 * 100 = -7.408%
34+38=72+90=162
180-162= 18
Round to the nearest tenth = 20
Answer=20
15) x=31/10
16)x=2
17)x=16/3
18)x=-2
19)2.5 hours
20) 32 hours
