Factor 140 c + 28 − 14 a 140c+28−14a140, c, plus, 28, minus, 14, a to identify the equivalent expressions. Choose 2 answers: Choose 2 answers: (Choice A) A 7 ( 20 c + 4 − 2 a ) 7(20c+4−2a)7, left parenthesis, 20, c, plus, 4, minus, 2, a, right parenthesis (Choice B) B 2 ( 70 c + 28 − 14 a ) 2(70c+28−14a)2, left parenthesis, 70, c, plus, 28, minus, 14, a, right parenthesis (Choice C) C 14 ( 10 c + 2 − a ) 14(10c+2−a)14, left parenthesis, 10, c, plus, 2, minus, a, right parenthesis (Choice D) D 2 ( 70 a + 14 − 7 c ) 2(70a+14−7c)2, left parenthesis, 70, a, plus, 14, minus, 7, c, right parenthesis

-2/

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

savings account is an account only used for saving money. this acts as an emergency source of funding for an individual. answer a would result in the money in his account to grow as it specifically states that interest is compounded daily at the rate of 2%

step-by-step explanation: