Answer:
Independent variable or explanatory variables.
Step-by-step explanation:
this variable is referred to as the independent variable.
A linear regression equation is of the form
Y = B0 + B1X1 + u
Y is the depndent variable
X1 is the independent variable
With u as the error term.
The independent variable is used to explain changes in Y, which is the dependent variable. The independent or explanatory variable has a direct effect on the dependent variable. This means that as X1 changes, Y would also change in response to the changes in the independent variable.
Subtract 3 from the right and do the same to the left which leaves you to x = -1
27.5+117=144.5 cm is the answer
The answers have square roots among the choices so we probably shouldn't use that calculator button.
We can't just apply the area of the trapezoid formula

where b is the bottom base, t the parallel top, and h the height, because we don't know the top t.
It will be 10 less the leg of that right triangle, which we calculate as

Now we can apply the trapezoid formula. We have


Choice b