3 years ago

Using the quadratic formula solve 11^2-4x=1 what are the value of x

Mathematics

1 answer:

fgiga [73]3 years ago

4 0

Answer:

See attached photo for solutions

Step-by-step explanation:

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2 years ago

Calculate the length b to two decimal places.

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B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

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$(AC)^{2}=369-360(-0.275637355817)$

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Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

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