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alisha [4.7K]
3 years ago
11

3x²+5x-10=0 find the values of a,b and c​

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

a = 3

b = 5

c = -10

Step-by-step explanation:

ax^2+bx+c

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A swim meet has 13 contestants signed up for the 100-meter butterfly event. The first heat has 6 swimmers. How many different wa
tino4ka555 [31]

Answer:

6 swimmers in the first heat can be arranged in 1716 different ways.

Step-by-step explanation:

A swim meet has 13 contestants signed up. To calculate the arrangement of first 6 swimmers in first heat we will use combinations because order doesn't matter.

So to select 6 swimmers out of 13 contestants number of different ways

= ^{13}C_{6}

= \frac{13!}{(6!)(13-6)!}

= \frac{13\times 12\times 11\times 10\times 9\times 8\times 7!}{6!\times 7!}

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= \frac{1235520}{720}

= 1716

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3 years ago
A clerk is marking up merchandise 34%. The original price of an item is $455. What will be the retail price?
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What is the answer for all these numbers
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