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skelet666 [1.2K]
3 years ago
9

The radius of a circular candle is 5 mm. If I want to attach a ribbon to the outside, how much ribbon do I need?

Mathematics
2 answers:
fredd [130]3 years ago
5 0

Answer:

B

Step-by-step explanation:

5 x 2 = diameter

10 x 3.14 (pie)

= 31.4 = D

professor190 [17]3 years ago
4 0

Answer: 31.4 mm

I took the test don't worry you're safe

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PLEASE HELP ASAP
zaharov [31]
Wouldn’t it be 0, as that’s when their values are both equal to each other, making the equation true?
4 0
3 years ago
Geometryyyy please help
svet-max [94.6K]

Answer:

x = 65

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Terry earns a base salary of $2100 per month. Once he reaches $40000 in total sales, he earns an additional 5% commission (salar
Zigmanuir [339]

Answer:

<h2>$4200 </h2>

Step-by-step explanation:

Step one:

given data

we are told that Terry's base salary is $2100  per month.

in addition 5% on sales greater than $40000.

let the monthly salary be M(s)

and let "s" be the amount of sales made

his monthly commission =0.05s

Step two:

The expression for his monthly earning is given as

M(s)=0.05s+2100   where s>40000

 hence for a month when s=42000

M(s)=0.05(42000)+2100

M(s)=2100+2100

M(s)=4200

<u>Therefore for an instance when s=42000 his earnings  for the month will be $4200 </u>

7 0
2 years ago
Find the largest prime divisor of $15^6 - 7^6$<img src="https://tex.z-dn.net/?f=Find%20the%20largest%20prime%20divisor%20of%20%2
Novosadov [1.4K]

Answer:

Largest prime factor of the given expression is <em>379.</em>

Step-by-step explanation:

Given the expression:

15^6 - 7^6

To find:

The largest prime factor of the given expression.

Solution:

First of all, let us factorize the given expression.

15^6 - 7^6\\\Rightarrow (15^3)^2 - (7^3)^2\\\\\text{Using } x^{2} -y^2 = (x+y) (x-y)\\\\\Rightarrow (15^3+7^3)(15^3-7^3)

Let us learn two formula:

x^3+y^3 = (x+y)(x^2+y^2-xy)

x^3-y^3 = (x-y)(x^2+y^2+xy)

Applying the above formula in the expression written above:

(15^3+7^3) = (15+7)(15^2+7^2-15\times 7)\\\Rightarrow 22(225+49-105 ) = 2 \times 11 \times 169 \\\Rightarrow 2 \times 11\times 13\times 13\\\Rightarrow 2 \times 11\times 13^2 ...... (1)

Similarly:

(15^3-7^3) = (15-7)(15^2+7^2+15\times 7)\\\Rightarrow 8(225+49+105 ) = 2^3 \times 379........ (2)

Multiplying the expressions from (1) and (2) to get the result:

\therefore 15^6 - 7^6 = 2^4 \times 11 \times \underline{\bold{379}} \times 13 ^2

So, largest prime factor of the given expression is <em>379.</em>

7 0
3 years ago
An amount of $4000 is invested. The interest rate is 2%. What is the amount earned in one year ?
nasty-shy [4]
Interest = PRT/100
Compound interest = P(1 + (R/100))^T

Where P = Principle ( amount )
R = Rate
T = Time

Since the time is only 1 year, the answer will be the same for both interest and compound interest formulae.

∴ 4000(2)(1)/100 =$80 (This is the interest value)

Note if question ask you what is the total amount after x years, be sure to add the interest with the principle.
6 0
3 years ago
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