Answer:
-51.4
Step-by-step explanation:
Answer: X = 30*
All circles = 360*
we can subtract 260 from that because we know the length of one so we know the other is 130.
We are then left with only 100 and we know the two sides are equivalent so 100 / 2 = 50
Answer:
L = 52°
J = 45°
K = 83°
Step-by-step explanation:
J = L - 7
K = 2L - 21
J + K + L = 180°
∴ (L - 7) + (2L - 21) + L = 180
4L - 28 = 180
4L = 208
L = 52°
J = 52 - 7 = 45°
K = 2 x 52 - 21 = 83°
B is incorrect. I may be using the wrong word, but addition and multiplication are commutative, so the numbers can be added in any order or multiplied in any order and you’d still get the same sum or product. However, you can’t do this with subtraction or division as the difference or quotient will be different.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The percentage is 83%
Step-by-step explanation:
Generally R-Sq is known as the coefficient of determination and from the question the value is 83% and this R-Sq defines the total variation in test scores can be explained by the linear relationship between years of study and test scores
So 83 % of the total variation in test scores is unexplained by the linear relationship between years of study and test scores
