A 15 ft. telephone pole has a wire that extends from the top of the pole to the ground. The wire and the ground form a 42 angle.
How long is the wire, and what is the distance from the base of the pole to the spot where the wire touches the ground?
1 answer:
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Full question attached:
Answer and explanation:
A) B2*B10: cell B2 and B10 have the values regular swear costs and number of swears respectively and we need to multiply these two values to get our answer
B) =IF(B10>10,(B10-10)*B3,0): Sam is supposed to pay an extra $2 for swear words over 10 and so we check if his swear words are above 10 and if they are we find out how many they are by subtracting 10 from them and then we multiply the value gotten by the cost for extra swear words($2)
C) =IF(B10<5,B10*B4,0): here we check if swear words are less than 5 and if they are we multiply number of swears words less than by 5 by the cost ($0.50)
D) F10=C10+D10+E10: to calculate total money in jar(F10), we simply add up regular cost(C10), extra cost(D10) and refund(E10)
The factorization will be (x-y)*(3x-y) .
Factorization : Factorization is a method of breaking the arithmetic algebraic expressions into the product of their factors. If we multiply the factors again, then they will result in original expression. The given question is a quadratic equation . Therefore we'll get two parts on breaking and 2 roots .
Factorizing : 3 x²-4xy+y²
Splitting term -4xy into - 3xy and -xy
3 - 3xy -xy +
Taking common from first two and last two terms ,
3x (x-y) + y(-x+y)
Taking minus common from last term ,
3x(x-y) - y(x-y)
Again taking common
(x-y) * (3x-y)
Hence , the factorization will be 3 x²-4xy+y² = (x-y) * (3x-y) .
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