3 years ago

:

Mathematics

2 answers:

alina1380 [7]3 years ago

8 0

Answer:

60$ will be left

Step-by-step explanation: 30x8 = 240. subtract 300-240 and you get 60

gtnhenbr [62]3 years ago

5 0

Answer:

Step-by-step explanation:

30*8=240

300-240=60

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Answer:

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Step-by-step explanation:

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2 years ago

Which two values of x are roots of the polynomial below? x2 - 11x + 13

swat32

Answer-

The values of x, which are the roots of the polynomial are

$\dfrac{11+ \sqrt{69}}{2},\ \dfrac{11- \sqrt{69}}{2}$

Solution-

The given polynomial,

$=x^2 - 11x + 13$

We know that,

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here,

a = 1, b = -11, c = 13

Putting the values,

$x=\dfrac{-(-11)\pm \sqrt{(-11)^2-4\times 1\times 13}}{2\times 1}$

$=\dfrac{11\pm \sqrt{121-52}}{2}$

$=\dfrac{11\pm \sqrt{69}}{2}$

$\therefore x=\dfrac{11+ \sqrt{69}}{2},\ \dfrac{11- \sqrt{69}}{2}$

6 0

3 years ago

I need the answers for this question

nekit [7.7K]

Answer:

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Step-by-step explanation:

First you would convert the 1/6 to 2/12 then add them like normal to get 13/12.

Hope this helps :

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3 years ago

Becca has a biscuit recipe that uses 2/3 of a tablespoon of salt for every 3/4 of a cup of flour. In order to have enough biscui

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2/3   - 3/4
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