One would be 240 + 360 = 600 degrees
and negative = 240-360 = -120 degrees
Answer:
14 + 2x I think
Step-by-step explanation:
Wait for more responses if needed
Answer:
B. y = -0.58x^2 -0.43x +15.75
Step-by-step explanation:
The data has a shape roughly that of a parabola opening downward. So, you'll be looking for a 2nd-degree equation with a negative coefficient of x^2. There is only one of those, and its y-intercept (15.75) is in about the right place.
The second choice is appropriate.
_____
The other choices are ...
A. a parabola opening upward
C. an exponential function decaying toward zero on the right and tending toward infinity on the left
D. a line with negative slope (This might be a good linear regression model, but the 2nd-degree model is a better fit.)
Answer:
A) angles
Step-by-step explanation:
it is this because they r called right angels. not right sides
Answer:
EF is 16.
Step-by-step explanation:
So we know that Point E is somewhere on Line DF. In other words, DE plus EF must equal DF. In an equation, this is:
We are given that DE is 2x, EF is 2x-6, and DF is 3x+5. So, substitute:
Now, solve for x.
On the right, combine like terms:
Subtract 4x from both sides:
Subtract 5 from both sides:
Divide both sides by -1:
Now that we know x is 11, substitute this back into the equation for EF to find EF.
Substitute 11 for x:
Multiply:
Subtract:
And we're done!
