Answer:
5 cm and 13 cm
Step-by-step explanation:
Let b be the width of the rectangle.
Length = 3+2b
The area of the rectangle is 65 cm²
We need to find the dimensions of the rectangle. The area of a rectangle is given by :
A = lb

Neglecting the negative value, the width of the rectangle is 5 cm.
Length = 3+2b
=3+2(5)
=3+10
=13 cm
Hence, the dimensions of the rectangle are 5 cm and 13 cm.
Answer:
Sum of (k*7) with i=1 to n=4
Step-by-step explanation:
-0.15 = -15/100 = -3/20
-7.75 = -7 3/4
-12.54 = -12 54/100 = -12 27/50
2.33 (repeating) or 2 1/3
Answer:
2(2x+1)(4x−3)
Step-by-step explanation:
GCF = 2
2( 16x^ 2/ 2+−4x/2− 6/2)
2(8x ^2−2x−3)
2(8x ^2 +4x−6x−3)
2(4x(2x+1)−3(2x+1))
2(2x+1)(4x−3)