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enyata [817]
4 years ago
15

This maybe primary but i don't get it

Mathematics
2 answers:
Over [174]4 years ago
8 0
P=r x 2 x pi
= 3 x 2 x 3.14
= 6 x 3.14 = 18.84
Rus_ich [418]4 years ago
6 0

Answer:

p=18.84

Step-by-step explanation:

You just need to double its radius and multipe with pi

You might be interested in
a plumber charges $50 for every house call and an additional $70 for each hour of work for one house call yesterday the plumber
sleet_krkn [62]

Answer:

5.5 hours

Step-by-step explanation:

Since every house has an initial charge of $50, we can begin with that

($50)

Then, let's define h as the number of hours. We know every hour is $70, although the hours is yet unknown so that can be

($70 * h) or simply ($70h)

Now, we know the total should end up to be $435, so after PEMDAS the equation will be

($70h + $50 = $435).

We subtract 50 from both sides so now we have $70h = $385.

Now we divide both sides by 70, giving us h = 5.5. Hope it helped!

4 0
3 years ago
Please help! this is the last one i need and i forgot how to do it!
s2008m [1.1K]

Based on the information, Christian would have $5525.5 of annuity.

<h3>How to calculate the annuity?</h3>

According to given information, the number of coffees per week is 3 then, per month is 3x4 = 12

For each coffee is $4.5. Then monthly expenditure for coffees is 12 x 4.5 = $54

Rate of interest r = 1.6% = 1.6/100 = 0.016 and for monthly compounding r = 0.016/12 = 0.00133

n = number of payments = 8 x 12 = 96

We can use the formula for finding the future value as below

FV = C x [ ( 1 + r )n-1 ] / ( r )

FV = 54 x [ ( 1 + 0.00133 )96 – 1 ] / (0.00133)

= 54 x [ (1.13609 - 1)] / (0.00133)

= 54 x 0.13609 / (0.00133)

= 54 x 102.3233

= 5525.5

Therefore Christian would have $5525.5 of annuity.

Learn more about annuity on:

brainly.com/question/5303391

#SPJ1

3 0
2 years ago
An artist used 6 tubes of red paint, 2 tubes of yellow paint, 13 tubes of white paint, and 9 tubes of blue paint for a mural.
pickupchik [31]

Answer:

2 1/6

Step-by-step explanation:

12/ 6= 2+(1/ 6)=2 1/6

                1/6

6 0
3 years ago
Read 2 more answers
Find an equation of the line that (a) has the same y -intercept as the line y + 5x + 9 = 0 and (b) is parallel to the line - 3x
kap26 [50]

Equation of required line is:

y = \frac{3}{4}x-9

Step-by-step explanation:

First of all we will convert both equations in slope-intercept form

y + 5x + 9 = 0

Subtracting 5x from both sides

y+9 = 0-5x\\y+9 = -5x

Subtracting 9 from both sides

y+9-9 = -5x-9\\y = -5x-9

The y-intercept is -9.

Other equation is:

- 3x + 4y = 3

Adding 3x on both sides

-3x+3x+4y = 3x+3\\4y=3x+3

Dividing both sides by 4

\frac{4y}{4} = \frac{3x+3}{4}\\y = \frac{3}{4}x+\frac{3}{4}

As the required line has y-ntercept of line y + 5x + 9 = 0

So,

b = -9

And

The line is parallel to second line, so the slopes of both will be equal

m=\frac{3}{4}

Slope-intercept form of line is:

y=mx+b

Putting values of b and m

y = \frac{3}{4}x-9

Keywords: Equation of line, Slope-intercept form

Learn more about equation of line at:

  • brainly.com/question/12973601
  • brainly.com/question/13063819

#LearnwithBrainly

6 0
3 years ago
Help me understand this question!
Ivan

Answer:

AB = 24, BC = 6

Step-by-step explanation:

Let, the length be a and breadth be b.

So, 2(a + b) = 60  => a + b = 30

(PQR) and (ABC) are similar.

So, a/8 = b/2

     2a = 8b

     2(30 - b) = 8b

     60 - 2b = 8b

     10b = 60

     b = 6

So, a = 24

[If there's any problem with the solution, please inform me]

3 0
4 years ago
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