Multiply the bracket by 5
I used PEMDAS
P= parenthesis
E= exponents
M=multiplication
D= division
A= addition
S= subtraction
7r+2= 5(r-4)
7r+2= 5r-20
Move 5r to the left hand side . Positive 5r changes to negative 5r
7r-5r+2= 5r-5r-20
2r+2=- 20
2r+2-2= -20-2
Move positive 2 to the right hand side. Changes to negative -2
2r+2-2= -20-2
2r= -22
Divide by 2 for 2r and -22
2r/2= -22/2
r= -11
Answer is r= -11
Answer: A rectangle
Note: I am a bit confused between A), B), and C), but the answer I am going for is C).
Step-by-step explanation:
By definition, a cross-section is the intersection of a plane and a body of three dimensions.
A pentagonal prism has a pentagon as its base. and its lateral faces are rectangles.
If a plane perpendicular cuts the pentagonal prism to the base, this means that the plane is parallel to lateral faces, then, the shape of the cross-section that is formed is also a rectangle.
Answer:
-125° × π / 180° = -2.181661565 rad
Step-by-step explanation:
Answer:
-24
Step-by-step explanation:
