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2 years ago

Perform the operation. 3/a^2b + 2/ab^2

Mathematics

1 answer:

Klio2033 [76]2 years ago

5 0

The simplified form of the expression is 3b+2a/(ab)²

<h3>Sum of fractions</h3>

Fractions are written as a ratio of two integers. Given the expression below;

3/a^2b + 2/ab^2

Find the LCM

3/a^2b + 2/ab^2 = 3b+2a/a²b²

3/a^2b + 2/ab^2 = 3b+2a/(ab)²

Hence the simplified form of the expression is 3b+2a/(ab)²

Learn more on sum of fraction here: brainly.com/question/11562149

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Divide 120ml into the ratio 3:7

viva [34]

Answer:

Step-by-step explanation:

sum of ratio=3+7=10

total=120 ml

first part=3/10×120=36 ml

second part=7/10×120=84 ml

5 0

2 years ago

Sandra calculated the height of a cylinder that has a volume of 576 pi cubic centimeters and a radius of 8 centimeters. Her work

r-ruslan [8.4K]

Answer:

The error was made in step 4, $\pi$ should have also been cancelled making the correct answer as 9 cm.

Step-by-step explanation:

Given that:

Volume of cylinder, $V = 576 \pi\ cm^3$

Radius of cylinder, r = 8 cm

To find:

The error in calculating the height of cylinder by Sandra ?

Solution:

We know that volume of a cylinder is given as:

$V = B h$

Where B is the area of circular base and

h is the height of cylinder.

Area of a circle is given as, $B = \pi r^2$

Let us put it in the formula of volume:

$V = \pi r^2 h$

Step 1:

Putting the values of V and r:

$576\pi = \pi 8^2 h$

So, it is correct.

Step 2:

Solving square of 8:

$576\pi = \pi \times 64\times h$

So, step 2 is also correct.

Step 3:

$h=\dfrac{576\pi}{64 \pi} = \dfrac{64 \pi \times 9}{64\pi}$

Step 4:

Cancelling 64 $\times \pi$ ,

h = 9 cm

So, the error was made in step 4, $\pi$ should have also been cancelled making the correct answer as 9 cm.

3 0

3 years ago

Answer in simplest form?3/8+5 1/2

Delvig [45]

Convert 5 1/2 ro improper fraction so 10/2
3/8 + 10/2
Then convert 10/2 into 40/8 by multiplying bu four so they have the same denominator
3/8 + 40/8 =43/8

7 0

3 years ago

Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x + 2

ryzh [129]

ans is b...multiply first eqn by -2

=》 -6x -4y = -48...eqn 3

add eqn 2 and 3...

=》 -2y = -18

=》 y = 9...x =2

6 0

3 years ago

PLEASEE HELPPP! <br> what is the measure of

Debora [2.8K]

Answer:

x=12

Step-by-step explanation:

Im not sure which measure you're talking about, but I'll show you what I did here:

A triangle = 180 degrees.

4x + 8x + 4x =16x

-8 - 1 - 3 = -12

180 = 16x - 12 -Add 12 to both sides

192 = 16x -divide by 16 to get x by itself

12 = x

Angle A = 88 degrees (8 times 12 then subtract 8)

Angle B = 47 degrees (4 times 12 then subtract 1)

Angle C = 45 degrees (4 times 12 then subtract 3)

5 0

2 years ago