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kotykmax [81]
3 years ago
15

Find the distance between the two points. Round to the nearest tenth if necessary. (10, –8), (4, 0) a. 2 b. 10 c. 16 d. 100

Mathematics
1 answer:
viva [34]3 years ago
5 0
D = sqrt (x2 - x1)^2 + (y2 - y1)^2
(10,-8)...x1 = 10 and y1 = -8
(4,0)...x2 = 4 and y2 = 0
now sub and solve
d = sqrt (4 - 10)^2 + (0 -(-8)^2
d = sqrt (-6^2) + (8^2)
d = sqrt (36 + 64)
d = sqrt 100
d = 10 <==
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Answer:

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Step-by-step explanation:

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8 0
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A collection of dimes and nickels is worth $8.40 there are 106 coins how many of each are there
kotegsom [21]
There are 62 dimes and 44 nickels.

N + D = 106 (There are 106 coins in all.)
1 nickel = 5 cents.
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5*N + 10*D = 840 ($8.40 = 840 cents)
N + D = 106 -------(1)
N = (106 - D)
5*N + 10*D = 840 ---------(2)
5*(106-D) + 10*D = 840
530 - 5*D + 10*D = 840
5*D = 840 - 530
5*D = 310
D = 310/5 = 62
Eq(1) N + D = 106
N + 62 = 106
N = 106 - 62
N = 44
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Not sure if it's correct, but I hope it helps :)
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