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Vilka [71]
3 years ago
14

Help! What is the answer to: 4x^2 + 9x - 1 = 0

Mathematics
2 answers:
nataly862011 [7]3 years ago
6 0
I hope this helps you




a=4


b=9


c= -1



disctirminant =b^2-4ac


disctirminant =9^2-4.4. (-1)


disctirminant =97


x1=-9+square root of 97/2.4= -9+square root of 97/8


x2= -9-square root of 97/2.4= -9-square root of 97/8
ira [324]3 years ago
4 0
Quadratic formula. The number before x^2 needs to be a 1 first . Get that number to a 1 and then use the formula. You should be able to find the quadratic formula on google.
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Point A is at-4 and point B is at 6. Which describes one way to find the point that divides AB into a 3:2 ratio?
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The point that divides AB into a 3:2 ratio is calculated by (d) for a ratio of 3:2, divide AB into 5 equal parts. Each equal part is 2 units, so the point that divides AB into a 3:2 ratio is 2

<h3>How to determine the ratio?</h3>

The given parameters are:

A = -4

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Start by calculating the length AB using:

AB = |B - A|

This gives

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Evaluate

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Next, the length is divided into 5 parts.

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Length = 10/5

Length = 2

The point on the location 3 : 2 is then calculated as:

Point = A + 3 * Length

This gives

Point = -4 + 3 * 2

Evaluate

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The above computation is represented by option (d)

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2 years ago
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Natali [406]
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3 years ago
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Anna35 [415]

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Step-by-step explanation:

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1 year ago
In a cricket match, a batsman hits a boundary 6 times out of 30 balls he plays.Find the probability that he did not hit a bounda
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Answer:

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Step-by-step explanation:

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Here, number of favorable outcomes = 6

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Now, P(E)  + P(not E)  = 1

So, P(not hitting a boundary ) = 1  -  P(hitting a boundary)

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4 0
3 years ago
Two figures that have the exact same size and shape are
AnnZ [28]

Howdy!

2 shapes that have the exact same size and shape are CONGRUENT.

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