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2 years ago

R^2+7r+10/3 / 3-30/r2-5r-50

2 answers:

8 0

Multiply r^2+7r+10/3 by 3r-30/r^2-5r-50
=( r^2+7r+10)/3 (3r-30)/(r^2-5r-50) 
=(r+2)(r+5)/3 3(r+10)/ (r-10)(r+5) 
=3 (r+2)(r+5)(r+10)/3(r-10)(r+5) 
=(r+2)(r+10)/(r-10)

Simora [160]2 years ago

3 0

Answer:

umm i think its r+2

Step-by-step explanation:

((r²+7r+10)/3) × (3r-30)/(r²-5r=50)= Factoring the expression (r²+7r+10) we get (r+2)(r+5)

Then multiply it with the other numerator, we get = (r+2)(r+5)(3(r-10)

Then we factorise = (r²-5r-50) = (r+5)(r-10)

Multiplying it with the other denominator, we have; = 3(r+5)(r-10)

Therefore dividing (r+2)(r+5)(3(r-10)/(3(r+5)(r-10) we get; = r+2

Therefore, the correct answer is r+2 (NOT MY WORK) (YAY)

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5m^{2}\sqrt{25m^{8}+15m^{6}+5m^{2}}

xxTIMURxx [149]

You can square the whole problem to cancel out the square root. Might make things easier.

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3 years ago

What is equivalent to 36/54

mina [271]

Answer:

18/27 would be a equivalent fraction to 36/54

Step-by-step explanation:

36/2=18 and 54/2=27

Therefore, 18/27

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3 years ago

A student solving for the acceleration of an object has applied appropriate physics principles and obtained the expression a=a1+

egoroff_w [7]

Answer:

$a=\frac{3\times 7}{7}+\frac{12}{7}$ (First step for obtaining a common denominator for the two fraction)

$a=\frac{33}{7}\text{ m/s}^2$

Step-by-step explanation:

$\text{Given Expression: }a=a_1+\frac{F}{m}$

where,

a is acceleration of an object.(Need to calculate)

$a_1=3.00\text{ m/s}^2$

$F=12.0\text{ Kg.m/s}^2$

$m=7.00\text{ kg}$

$\text{Substitute }a_1, \text{ F, and m into expression and we get}$

$a=3+\frac{12}{7}$

Now we will simplify above expression for a

First we make common denominator.

Common denominator is 7. So, we make both denominator 7. We multiply by 7 at top and bottom with 3. We get

$a=\frac{3\times 7}{7}+\frac{12}{7}$ (First step for obtaining a common denominator for the two fraction)

Now we combine the numerator

$a=\frac{21+12}{7}$

$a=\frac{33}{7}\text{ m/s}^2$

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3 years ago

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the store owner gave a 35% discount yeah Joe and Carol so had to pay $247 for the camera what was the original price of the came

frozen [14]

From the given statement, we know the following...

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3 years ago

Matt has 20 marbles in a bag. 15 are red, 2 are blue, and 3 are green. what is the probability that Matt will pick a blue marble

marta [7]

Answer=10%

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3 years ago

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