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2 years ago

How do I simplify rational expressions

Mathematics

1 answer:

ivolga24 [154]2 years ago

6 0

Answer:

a rational expression is an expression that has a RATIO in it

look at the word "RATIO"nal

a ratio is just a fraction...

so your question is "how to simplify fractions"

lots of approaches, this is one of them...

PRIME FACTOR the numerator and denominator

$\frac{90}{135}$

90 = 2 * 3 * 3 * 5

135 = 3 * 3 * 3 * 5

= 2/3 (the two 3's cancel and the 5's cancel)

Step-by-step explanation:

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Solve for this equation<br> z^2-12z=-13

ASHA 777 [7]

Answer:

$z=\sqrt{-1}$

Step-by-step explanation:

$z^2-12z=-13\\z^2-\frac{-12}{+12} =-13+12\\z^2=-1\\\sqrt{z^{2} } =\sqrt{-1}\\ z=\sqrt{-1}$

5 0

2 years ago

kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza. Define a variable and write an expression to represent th

Stels [109]

The total cost, if one drink costs $3 is $27.75

Let the cost of a pizza be x

Let the cost of a drink be y

If kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza, this expressed as x + 4y

Since a pizza costs $12.75, hence x = $12.75

The function becomes 12.75 + 5y

f(y) = 12.75 + 5y

To get the total cost if one drink costs $3, hence;

f(3) = 12.75 + 5(3)

f(3) = 12.75 + 15

f(3) = 27.75

Hene the total cost, if one drink costs $3 is $27.75

Learn more on function here: brainly.com/question/9418047

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2 years ago

HELP PLEASE AND THX<br> What's the slope

lara [203]

Answer:

what's the slope of what

Step-by-step explanation:

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2 years ago

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The line plot below shows the distances of discus throws in a contest.

Scrat [10]

I think is 40 meters

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2 years ago

Acell phone company charges $40 per month for unlimited calling, and $0.20 per text message sent. If t represents

-Dominant- [34]

Answer: 40 + 0.21t

Step-by-step explanation:

If t is the number of texts last month and the initial fee for each month is $40 then you will have the expression 40+0.21t

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