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vaieri [72.5K]
3 years ago
6

What is the formula of Arae circle ​

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

A=πr2

Step-by-step explanation:

Mkey [24]3 years ago
4 0

Answer:

A= πr²

r = Radius

Step-by-step explanation:

In geometry, the area enclosed by a circle of radius r is πr². Here the Greek letter π represents the constant ratio of the circumference of any circle to its diameter, approximately equal to 3.14159.

<h2>Hope it is helpful......</h2>
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James earned $39,600 last year. He paid $11,250 towards rent and $1,422 in car payments. What percent of his earnings did Jon pa
tester [92]
Step 1:
Add rent & car payments

=11,250+1422
=$12,672

Step 2:
to determine %, set up a proportion
12,672 is to his total of 39,600 as x is to 100

12,672/39,600 = x/100
cross multiply
(12,672)(100) = (39,600)(x)
1,267,200= 39,600x
divide both sides by 39,600
32%= x

OR

Alternative Step 2:
12,672 ÷ 39,600= 0.32
Alternative Step 3:
0.32 x 100 = 32%
or move decimal to the right 2 places

His rent and car payments are 32% of his earnings.

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
The half-life of a radioactive kind of iodine is 60 days. How much will be left after 240 days, if you start with 480 grams of i
exis [7]

Answer:

30 grams

Step-by-step explanation:

half life is 60 days so every 60 days the amount 480 grams will be half

in 240 days will decay  240 /60 = 4 times

once 480 /2 = 240

twice 240 /2 = 120

trice 120 / 2 = 60

four times 60/2 = 30 grams will be left

6 0
3 years ago
Use the formula for compound amount:$14,800 at 6% compounded semiannually for 4 years
GalinKa [24]

SOLUTION

Given the question in the question tab, the following are the solution steps to answer the question.

STEP 1: Write the formula for calculating compound amount

A=P(1+\frac{r}{n})^{nt}

where

A = final compounded amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

STEP 2: Write the given data

Semiannually means that n will be 2

P=14,800,r=\frac{6}{100}=0.06,n=2,t=4

STEP 3: Calculate the compound amount

\begin{gathered} A=14800(1+\frac{0.06}{2})^{2\times4}\Rightarrow A=14800(1+0.03)^{2\times4} \\ A=14800(1.03)^8 \\ A=14800\times1.266770081 \\ A=\text{\$}18,748.1972 \end{gathered}

Hence, the compounded amount after 4 years is $18,748.1972

6 0
1 year ago
Find the area. Round your answer to the nearest WHOLE NUMBER 8.2 **7cm (does someone know this one I keep getting the wrong answ
Natalija [7]

Answer:

8

Step-by-step explanation:

round your number to nearest whole number this means a number without decimals

5 0
3 years ago
Bobby and Petra are running a lemonade stand and they charge 45 cents for each glass of lemonade. To break even they must make $
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Answer: 56

Step-by-step explanation:

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