4 years ago

Please Please help me... 30 pts and brainliest for a GOOD COMPLETE SENSIBLE ANSWER

Mathematics

1 answer:

Firdavs [7]4 years ago

4 0

This is the correct work

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Which algebraic expression is equivalent to the expression below?

enyata [817]

The answer is B, all you have to do is combine like terms 8x+9x and 12+ -3

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3 years ago

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Solving Rational equations. LCD method. Show work. Image attached.

Ugo [173]

Answer:

$k=\frac{1}{2}$

Step-by-step explanation:

The given rational equation is

$\frac{5k}{k+2}+\frac{2}{k}=5$

The Least Common Denominator is

$k(k+2)$

Multiply each term by the LCD.

$k(k+2)\times \frac{5k}{k+2}+k(k+2)\times \frac{2}{k}=5k(k+2)$

Simplify;

$k\times \frac{5k}{1}+(k+2)\times \frac{2}{1}=5k(k+2)$

$\Rightarrow k(5k)+2(k+2)=5k(k+2)$

Expand;

$\Rightarrow 5k^2+2k+4=5k^2+10k$

Group similar terms;

$\Rightarrow 5k^2-5k^2+2k-10k=-4$

$\Rightarrow -8k=-4$

Divide by -8.

$k=\frac{1}{2}$

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3 years ago

PLS HELP!!! I am gonna fail

Kitty [74]

Answer:

Help with what? You didn't post anything.

Step-by-step explanation:

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3 years ago

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The sum of two and four and six times eight?

MissTica

Answer:

2+4 6(8)

Step-by-step explanation:

pls give brainliest

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3 years ago

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in a game involving a pair of fair dice a player rolls the dice until he gets a sum of 7 let z equal the number of rolls it take

Anarel [89]

Answer:

z = 36 rolls , probability for getting 7 = 1/6

Step-by-step explanation:

A die has 6 possible outcomes, which sums to 36 for two dice for every value on both dice.

The outcomes for rolling both dice for 36 times gives 6 possible outcomes summing to 7, that is, (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), and (6, 1).

There the probability of getting a sum dice of 7 is:

= 6 / 36 = 1/6

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3 years ago