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Butoxors [25]
2 years ago
9

Use the quadratic formula to solve for the roots in the following equation.

Mathematics
1 answer:
fomenos2 years ago
6 0
First lets combine terms.

<span>4x 2 + 5x + 2 = 2x 2 + 7x – 1 subtract the left side from right side
</span>
(4x 2- 2x 2) + (5x - 7x) + (2 + 1)=0 then combining
2x 2 - 2x + 3 =0  now we can use the quadratic formula

<span>
</span>a=2,   b=-2   c=3

see attached and plug them in


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A price decreased from 60$ to 45$ find the percent of decrease
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The mean time it takes to walk to the bus stop is 8 minutes (with a standard deviation of 2 minutes) and the mean time it takes
kifflom [539]

We have been given for a normal distribution the mean time it takes to walk to the bus stop is 8 minutes with a standard deviation of 2 minutes. And the mean time it takes for the bus to get to school is 20 minutes with a standard deviation of 4 minutes.

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(e) Standard deviation won't change it will remain 4.47

(f) The new probability will be:

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