area = l x w
(x + 6)(x+4)
Use FOIL method (first, outer, inner last)
x^2 + 4x + 6x + 24
x^2 + 10x + 24 is your answer
Answer is 1080 degrees
Formula for calculating angles in a polygon (Shape with 4 or more sides) is (n-2) x 180, where n is the number of sides on the shape. Octagon has eight sides, so you subtract it by 2, which is 6. Multiply that by 180 to get 1080, which is the sum of the angles.
Answer:
XY would also be 7 centimeters which is answer D.
Step-by-step explanation:
This is a parallelogram, meaning that the adjacent sides are congruent. As well, the triangles making up the figure are congruent, so it makes sense that XY would also equal 7 centimeters.
Step-by-step explanation:
10X+ 180= 500
10X= 500-180
10X= 320. .....divine both sides by 10 to solve for X
X = 32.
check
10(32)+180 = 500
320+180 =500
500 =500...confirmed
Mentally: 10% of $52 is $5.20 so 20% is twice as much or $10.40 (Answer c)
To find 10% of a number just move the decimal one place to the left and to find 20% simply double the answer you got when you found 10%.
Computational way: 20% of $52 = .2 x 52 = 10.4 which in money is $10.40