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4 years ago

Why is adding 3/9 and 6/9 different from multiplying the two fractions?

1 answer:

6 0

First off 3/9 and 6/9 are already common denominators. In some fractions you would need to find the least common denominator like in a problem like 1/2 + 4/5. Also 3/9 plus 6/9 results in 9/9 and 9/9 equals 1. Most fractions adding it subtracting results in a pan answer as a fraction but in this case it’s a whole number.

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Please help! :)

sweet-ann [11.9K]

Answer:

Second option is correct

$Arc\ length = \frac{3}{4} \pi\ in$

Step-by-step explanation:

Given:

Central angle = 15°

Radius of the circle = 9 in

Arc length = ?

Given formula is

$\frac{Arc\ length}{Circumfrance} = \frac{n}{360}$

Where n is the central angle of the sector.

Write the given formula for Arc length of the sector.

$Arc\ length = Circumfrance\times \frac{n}{360}$

We know that the the circumference of the circle is $2\pi r$ , where r is the radius of the circle,

$Arc\ length = 2\pi r\times \frac{n}{360}$

Now we substitute central angle value and radius value in above equation.

$Arc\ length = 2\pi 9\times \frac{15}{360}$

$Arc\ length = 18\times \pi \frac{15}{360}$

$Arc\ length = \frac{18\times 15}{360} \pi$ ----------( $\frac{18}{360}=\frac{1}{20}$ )

$Arc\ length = \frac{15}{20} \pi$

Divide the numerator and denominator by 5.

$Arc\ length = \frac{3}{4} \pi\ in$

Therefore the arc length of the sector is $\frac{3}{4} \pi\ in$

4 0

3 years ago

A person can pay $6 for a membership to the science museum and then go to the museum for just $7 per visit. What is the maximum

spin [16.1K]

Answer:

a total of six times

Step-by-step explanation:

7+7+7+7+7+7=42

7 0

3 years ago

Read 2 more answers

How do I solve for x since the triangles are similar?

Llana [10]

A line that is parallel to a side and intersects the other two siddes divides the sides proportionally.

Set up the proportion
2/x+1 = x/x+6
Multiply means and extremes
2x+12= x^2+ x
Solve to get your answer.

3 0

3 years ago

Please help .......................

spin [16.1K]

Answer:

3/8

Step-by-step explanate

6 0

3 years ago

Madyson has 2 vases of flowers. Each vase has 6 flowers. Madyson must divide the flowers equally into three vases.

algol13

Answer:

Step-by-step explanation:

if there are 6 flowers in each vase and there are 2 vases that means there is 12 flowers. 12 divided by 3 =4

5 0

3 years ago