To get percent error you take actual-predicted and divide by the actual then multiply by 100 to get the percent.
65-50=15
15/60=0.25
0.25 times 100 =25%
You can divide 50 by 5 (2+(1.50x2)) 50/5 is 10 10x + 20y.
Happy studying ^-^
Answer:
<h2>See below</h2>
Step-by-step explanation:
Terms are variables in math.
For example: 5x + 6y = is NOT like becuase x and y equal different things
4x + 2x = is like becuase x equals the same number in both
The reason we care about like terms is because we can simplify like terms.
4x + 2x simply equals 6x.
I'm always happy to help :)
Answer:
$3, 661.60
Step-by-step explanation:
1703.44 + 1958.16
Answer:
x ≈ 77°, y = 103°
Step-by-step explanation:
Using the Sine rule in Δ BCD
= 
( cross- multiply )
2.9sinx° = 4sin45° ( divide both sides by 2.9 )
sinx° = 
, thus
x = 
( ) ≈ 77° ( to the nearest degree )
Since AC and DC are congruent then Δ ACD is isosceles.
Thus the base angles are congruent, that is
∠ ADC = ∠ CAD = y°
x and y are adjacent angles and supplementary, thus
x + y = 180, that is
77 + y = 180 ( subtract 77 from both sides )
y = 103°
