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3 years ago

When you multiply a positive integer by a positive integer is the result positive or negative?

1 answer:

5 0

<span>When you multiply a positive integer by a positive integer then the result must be a Positive Integer.

Hope this helps!
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What is the area of a sector with a central angle of 2π7 radians and a diameter of 40.6 mm?

Gennadij [26K]

Answer:

184.85 square mm

Step-by-step explanation:

The area of a sector of a circle is $\frac{1}{2} r^{2} \theta$ , where r is the radius and $\theta$ is the angle in radians subtended by the arc at the centre of the circle.

Since, diameter = 40.6 mm

So, radius(r)=20.3 mm and $\theta$ = $\frac{2 \pi}{7}$ radians

So, area of sector= $\frac{1}{2} r^{2} \theta$

= $\frac{1}{2} (20.3)^2 (\frac{2 \times 3.14}{7})$

=184.85 square mm

5 0

4 years ago

What is the side length of a cube with a volume of 6000 ft^3?

Levart [38]

Answer:

It would be 18.17ft cubed

Step-by-step explanation:

5 0

3 years ago

A town has a population of 5000 and grows at 4% every year. To the nearest year, how long will it be until the population will r

Rus_ich [418]

Answer:

About 21.457 years

Step-by-step explanation:

You can solve this by setting up a simple equation.

$5000\cdot 1.04^x \geq 11600$

$1.04^x \geq 2.32$

log base 1.04 2.32=x

$x\approx 21.457$ years

Hope this helps!

8 0

3 years ago

The ratio of rock music to total CDs that ella owns is 25/40. Paolo has 50 rock music CDs. The ratio of rock music to total CDs

qaws [65]

They own a total of 120 CDs.

GIVEN:
Ella: ratio of rock music to total CDs that she owns 25/40
Paolo: has 50 rock music CDs. The ratio of rock music to total CD is equal to Ella's ratio.

Proportion: a/b = c/d where ad = bc

25/40 = 50/x
25x = 40 * 50
25x = 2000
25x / 25 = 2000 / 25
x = 80 total of Paolo's CDs

Total of Ella's CDs = 40
Total of Paolo's CDs =<u> 80</u>
Total CDs in all 120

5 0

4 years ago

Find the product of 3,000 and 9.

Advocard [28]

3,000 x 9 = 27,000
The answer would be A

4 0

4 years ago