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3 years ago

Can someone help me with this? I don’t need an explanation I just need the answer thank you :)

Mathematics

1 answer:

Fittoniya [83]3 years ago

5 0

Answer:

87.92 in²

Step-by-step explanation:

pi × (R² - r²) = area

Where R is the radius of the outer circle and r of the inner circle.

Since C = 2pi×r

37.68 = 2×3.14×r

r = 6 in

R = 6 + 2 = 8 in

Therefore,

pi × (R² - r²) = area

Area = 3.14 (8² - 6²)

= 87.92 in²

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On a line segment, M is between L and N. If MN = 10.4 and LN = 19.4, what is LM?

algol [13]

Answer:

GOOGLE

Step-by-step explanation:

GOOGLE MY HUMAN

8 0

3 years ago

What is 36/48 simplifiied?

Sunny_sXe [5.5K]

36/48 simplified is 3/4

divide both by 12
36÷12
3
48÷12
4

3 0

2 years ago

Read 2 more answers

Which polynomial expression represents a sum of cubes? (6 – s)(s2 + 6s + 36) (6 + s)(s2 – 6s – 36) (6 + s)(s2 – 6s + 36) (6 + s)

Nadusha1986 [10]

Answer:

Option 3 is correct that is $(6+s)(s^2-6s+36)$

Step-by-step explanation:

We have general formula for sum of cube which is

$a^3+b^3=(a+b)(a^2+b^2-ab)$

Here, we have a=s and b=6

on substituting the values in the formula we will get

$6^3+s^3=(6+s)(s^2+6^2-6s)$

After simplification we will get

$6^3+s^3=(6+s)(s^2+36-6s)$

After rearranging the terms we will get

$6^3+s^3=(6+s)(s^2-6s+36)$ which exactly matches option 3 in the given options.

Therefore, option 3 is correct that is $(6+s)(s^2-6s+36)$

4 0

3 years ago

Read 2 more answers

Will upvote<br><br> 4,7,12,19,31,... does this classify as a arithmetic, geometric, or neither

spayn [35]

To find if a series is either geometric or arithmetic:
it must satisfy this property:

Arithmetic:

a(n+1) - a(n) = const

Geometric:

a(n+1)/a(n) = const

In your case:

r1 = 7 -4 = 3

r2 = 12 - 7 = 5

r1 != r2 (not arirthmetic)

Geometric check:

r1 = 7/4

r2 = 12/7

r1 != r2 (not Geometric)

so neither.

8 0

3 years ago

For each of the situations described, state whether the sampling procedure is simple random sampling, stratified random sampling

aleksklad [387]

Answer:

The sampling method applied is Cluster sampling.

Step-by-step explanation:

A cluster sampling method is the type of sampling where first the entire population is divided into homogeneous groups. Then a random sample of these groups are selected.

After selecting a sample of groups, a random sample of fixed size is selected from each group.

In this case all freshmen are first divided into 30 sections, then 4 random sections are selected and the students in those 4 sections are sampled.

The sampling method applied is Cluster sampling.

6 0

3 years ago