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3 years ago

Help AGAIN please :/ (part A and B)

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

6 0

N:one hundredth
Because 0.016 divided by 1.6 is 100th

NikAS [45]3 years ago

3 0

Part A:

Answer: n = 100, but since it needs to be an exponent it will be 10²

Part B:

1.6 ÷ $10^{2}$ = $\frac{1.6}{100}$

= 0.016

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A circular region has a population of about 260000 people and a population density of about 135 people per square mine . find th

ValentinkaMS [17]

Answer:

24.76 mine

Step-by-step explanation:

The first thing is to calculate the area of the region, which we can calculate since we have the density and the population. The area would be the quotient between population and density:

260000/135 = 1925.93

The area would be 1925.93 square mine

We know that the area is given by:

A = pi * r ^ 2

we solve to r

r ^ 2 = A / pi

r ^ 2 = 1925.92 / 3.14

r ^ 2 = 613.3

r = 24.76

the radius is equal to 24.76 mine

4 0

3 years ago

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I need help ASAP plz

Mice21 [21]

A or C cause they both have the same equation that start from a + but descend down to a -

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4 years ago

I WILL MARK BRAINIEST <br> please answer question 5

Marat540 [252]

Answer:

a = 150

Step-by-step explanation:

The sum of the internal angles of an octagon is 1080°.

$4a+4(120)=1080$ (There are four $120^{\circ}$ and 4 $a^{\circ}$ , they sum to 1080°)

$4a + 480 = 1080$

$4a = 600$

$a = 150$

Hope this helps :)

4 0

3 years ago

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What type of number is V13?

Art [367]

Answer:

D. Irrational

Step-by-step explanation:

$\sqrt{13} \: is \: an \: \purple{\bold {irrational}} \: number.$

7 0

3 years ago

Total surface area of a cube is 1014cm^2. It's volume will be :

rewona [7]

Answer:

$V=2197\ cm^3$

Step-by-step explanation:

<u>Surface Area and Volume of a Cube</u>

Given a cube of side length a, the surface area is:

$A = 6a^2$

The volume is calculated as:

$V=a^3$

It's given the surface area of a cube:

$A=1014\ cm^2$

We can find the side length a by solving for a:

$\displaystyle a=\sqrt{\frac{A}{6}}$

$\displaystyle a=\sqrt{\frac{1014}{6}}$

$\displaystyle a=\sqrt{169}$

a = 13 cm

Now compute the volume:

$V=13^3$

$\boxed{V=2197\ cm^3}$

Answer: a) 2197 cm^3

5 0

3 years ago