3 years ago

A group of student are involved in a after school club are playing games

Mathematics

2 answers:

Feliz [49]3 years ago

8 0

Answer:

Part A 6:9

Part B 6:8

Step-by-step explanation:

lord [1]3 years ago

6 0

Answer:

Part A: 6:9, Part B: 6:8

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What is the following quotient? 5/√11-√3

kati45 [8]

ANSWER

$\frac{5( \sqrt{11} + \sqrt{3} )} {8}$

EXPLANATION

The given rational function is

$\frac{5}{ \sqrt{11} - \sqrt{3}}$

We need to rationalize the denominator by multiplying both the numerator and the denominator by the conjugate of

$\sqrt{11} - \sqrt{3}$

which is

$\sqrt{11} + \sqrt{3}$

When we rationalize we obtain:

$\frac{5( \sqrt{11} + \sqrt{3} )}{(\sqrt{11} - \sqrt{3} )( \sqrt{11} + \sqrt{3} )}$

The denominator is now a difference of two squares:

$(a - b)(a + b) = {a}^{2} - {b}^{2}$

We apply this property to get

$\frac{5( \sqrt{11} + \sqrt{3} )}{( \sqrt{11}) ^{2} - ( \sqrt{3}) ^{2} )}$

$\frac{5( \sqrt{11} + \sqrt{3} )}{11 - 3}$

This simplifies to

$\frac{5( \sqrt{11} + \sqrt{3} )} {8}$

$\frac{5 } {8}\sqrt{11} + \frac{5 } {8}\sqrt{3}$

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3 years ago

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10 kids are randomly grouped into an A team with five kids and a B team with five kids. Each grouping is equally likely. (a) Wha

nikitadnepr [17]

Answer:

I think B is 1/5. I think C is 1/2.

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-6= n/2 - 10 help needed

BARSIC [14]

Answer:

N = 4

Step-by-step explanation:

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I need help on this and its to hard to make me understand this work

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