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2 years ago

A bag contains 5 green marbles and 8 blue marbles. A dice is rolled, then a marble is chosen at random from the bag .

Mathematics

1 answer:

kolezko [41]2 years ago

3 0

What is the question?

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Giving brainliest if you answer this question correct!1!1!1!1!!!

NARA [144]

Answer:

3/40

Step-by-step explanation:

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2 years ago

You received a $150 gift certificate to a clothing store. The store sells T-shirts for $17 and dress shirts for $26. You wan

rodikova [14]

Answer:

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Step-by-step explanation:

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2 years ago

Show that Sin60 / cos60 = tan 60

Lerok [7]

Answer:

sin60=opp\hyp
cos60=adja\hyp
tan60=opp\adj
sin60\cos60=tan60

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1 year ago

PLISSSSSS HELP THIS IS FOR EXAM THERE IS A PICTURE

Marizza181 [45]

Answer:

elimination anyday

Step-by-step explanation:

there are two 3y terms so they cancel out when using elimination, mark me brainliest plz

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1 year ago

Read 2 more answers

Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

7 0

2 years ago