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3 years ago

A sports team is selling circular patches for their fans. Each patch has a

Mathematics

1 answer:

atroni [7]3 years ago

4 0

Answer: 63.59cm²

Step-by-step explanation:

The area covered by the pitch will be gotten by finding the value of the area of the circle and this will be:

Area of q circle = πr²

where,

π = 3.14

r = radius = diameter/2 = 9cm/2 = 4.5cm

Area = πr² = 3.14 × 4.5²

= 3.14 × 20.25

= 63.59cm²

Therefore, the area covered by the pitch is 63.59cm²

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48 cookies; 25% decrease how do I do it?????

Harrizon [31]

Step One: Find 25% of 48.
Step Two: Subtract that number from 48.

48 * 0.25 = 12
48 - 12 = 36

36 cookies

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3 years ago

Consider this linear function:

ivolga24 [154]

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Answer:

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Step-by-step explanation:

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8 0

3 years ago

Simplify each fraction 20/100

Masteriza [31]

1/5 i hope it helps. We knows this because 20 times 5 is 100. 5 times 2 is 10.

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3 years ago

Read 2 more answers

The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a

STatiana [176]

Answer:

24761 mosquitoes

5.4 days

Step-by-step explanation:

Let the equation that shows the population of the mosquitoes after x days,

$A=P(1+r)^x$

Where,

P = Initial population,

r = rate of increasing per day,

Here, A = 1000, when x = 0,

$1000=P(1+r)^0\implies P = 1000$

A = 1900 when x = 1,

$1900 = P(1+r)^1\implies 1900 = 1000(1+r)\implies 1.9 = 1 + r\implies r = 0.9$

Thus, the required function that represents the population after x days,

$A=1900(1+0.9)^x=1900(1.9)^x$

If x = 4,

The number of mosquito after 4 days,

$A=1900(1.9)^4 = 24760.99\approx 24761$

If A = 60,000,

$60000 = 1900(1.9)^x$

$\frac{600}{19}=1.9^x$

Taking log both sides,

$\log(\frac{600}{19})=x\log 1.9$

$\implies x = \frac{\log(\frac{600}{19})}{\log 1.9}=5.378\approx 5.4$

Thus, there will 60,000 mosquitoes after 5 days.

6 0

3 years ago

a gym membership is advertised to cost 630 per year . what is the cost per mouth of the gym menbership

kicyunya [14]

Answer:

52 1/2 OR 52.5

Step-by-step explanation:

You divide 630 by the number of months in a year, 12. 630 / 12 = 52.5. So the answer is 52.5 (Dollars, cents, whatever money label it is).

Hope that helps!

5 0

3 years ago