Answer:
area of sector= teete ×πr²
360
<u>4</u><u>0</u><u>°</u>×<u>2</u><u>2</u>×2×2
360 7
<u>4</u><u>0</u><u>×</u><u>8</u><u>8</u>
2520
<u>3</u><u>5</u><u>2</u><u>0</u>
2520
=1.397°
here's the answer to your question
the 4.89 for 1 gallon is cheaper because it saves you money
Answer:
Below
Step-by-step explanation:
All figures are squares. The area of a square is the side times itself
Let A be the area of the big square and A' the area of the small one in all the 5 exercices
51)
● (a) = A - A'
A = c^2 and A' = d^2
● (a) = c^2 - d^2
We can express this expression as a product.
● (b) = (c-d) (c+d)
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52)
● (a) = A-A'
A = (2x)^2 = 4x^2 and A'= y^2
● (a) = 4x^2 - y^2
● (b) = (2x-y) ( 2x+y)
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53)
● (a) = A-A'
A = x^2 and A' = y^2
● (a) = x^2-y^2
● (b) = (x+y) (x-y)
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54)
● (a) = A-A'
A = (5a)^2 = 25a^2 and A' =(2b)^2= 4b^2
● (a) = 25a^2 - 4b^2
● (a) = (5a-2b) (5a+2b)
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55)
● (a) = A - 4A'
A = (3x)^2 = 9x^2 and A'= (2y)^2 = 4y^2
● (a) = 9x^2 - 4 × 4y^2
● (a) = 9x^2 - 16y^2
● (a) = (3x - 4y) (3x + 4y)
Answer:
4(7)+4(y)
4(y·7)
4(3+4)+4(y)
Step-by-step explanation:
