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2 years ago

2√x-3√y √x + √y Rationalize the denominator

Mathematics

1 answer:

MAXImum [283]2 years ago

8 0

Answer:

Step-by-step explanation:

( 2√x - 3√y ) /(√x + √y )

= [(2√x-3√y)(√x -√y)]/[(√x+√y)(√x-√y)]

= [2x +2√xy -3√xy -3y]/[ (√x)² -(√y)²]

=[2x - √xy -3y ] / ( x - y )

I hope this helps you.

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(5x-5)+(2x+10) find the value of x

saveliy_v [14]

Answer:

you mean this (5x-5)=(2x+10)right ? if yes X=5

Step-by-step explanation:

if this (5x-5)+(2x+10)=0 so X= - 5/7

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4 years ago

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3 years ago

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ruben is buying bricks for a project. he knows that 5 bricks weigh 26 1/4. he wants to know the weight of 24 bricks

Phoenix [80]

Answer:

the weight of 24 bricks is :

$124\frac{4}{5}$

Step-by-step explanation:

$26\frac{1}{4} =26+\frac{1}{4} =\frac{26\times 4}{4} +\frac{1}{4} =\frac{105}{4}$

It is clear that there is a proportional relationship between the number of bricks and their weights then :

$\frac{26\frac{1}{4} }{5} =\frac{x}{24} \Longrightarrow \frac{\left( \frac{105}{4} \right) }{5} =\frac{x}{24} \Longrightarrow \frac{26}{5} =\frac{x}{24}$

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2 years ago

The edges of a rectangle solid have lengths 2x,3xand 5x.what is the total surface area of the solid ?

Greeley [361]

Answer:

30x³

Step-by-step explanation:

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