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user100 [1]
2 years ago
13

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

#SPJ1

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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
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