Answer:
D
Add all of the sides together. 2x+1 plus 2x+1 equalls 4x +2
Then add that to (xsquared+3x-2 + xsquared+3x-2) which is 2xsquared +6x-4+4x+2 which equalls D
R = 7 because the slope is positive so the graph is going up from -5 at 6 to 14. That's 8 unit, 8*3/2 + -5 = 7
Answer:
38x² - 17x - 3
Step-by-step explanation:
The area of the shaded region is calculated as
area of outer rectangle - area of white rectangle, that is
(8x + 1)(5x - 3) - 2x(x - 1) ← expand (8x - 1)(5x - 3) using FOIL
= 40x² - 24x + 5x - 3 - 2x² + 2x ← collect like terms
= 40x² - 17x - 3
Simple,
2.) If a circle is divided into 9 parts and your are trying to find three of those parts, first find what is 1 of those parts...
In a circle there is 360°
360/9=40
That is 1 part.
For three parts it would be 40*3=120
Your answer is 120°
3.) Do the same thing here.
A circle is 360°
360/10=36
Now, for four of those parts...
36*4=144
The answer is 144°.