Answer:
The standard form of the equation is y = 2x^2 + 16x + 25
Step-by-step explanation:
To find the standard form, first square the parenthesis.
y = 2(x + 4)^2 - 7
y = 2(x^2 + -8x + 16) - 7
Now distribute the 2
y = 2(x^2 + 8x + 16) - 7
y = 2x^2 + 16x + 32 - 7
Now combine like terms
y = 2x^2 + 16x + 32 - 7
y = 2x^2 + 16x + 25
Answer:
8. 64.23
10. 51.317
Step-by-step explanation:
tan^-1(29/14) = 64.23
cos^-1(25/40) = 51.317
Answer:

Step-by-step explanation:
For this I would find two friendly points like (60,10) and (70,30). Now we will plug in for the slope-intercept formula
.
So...

Now we plug in and solve...

So the slope will be 2.
240÷6=40 so the answer would be "The train is traveling 40 miles per hour."
Answer:
You are incorrect the answer is 3 1/4