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barxatty [35]
3 years ago
6

The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diam

eter of each circle is 6 feet. Approximately how many square feet of the turf need to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth.
Mathematics
2 answers:
Ksenya-84 [330]3 years ago
4 0

Answer:

28.3 squared feet

Step-by-step explanation:

12345 [234]3 years ago
3 0

Answer:

28.3 Square Feet

Step-by-step explanation:

Diameter of circle=6 feet

then

radius=diameter/2

=6/2

=3 feet

The area of circle is given by  

A = πr^2

where r is the radius of the circle

Putting the values of pi and r

A =(3.14)(3)^2

=3.14*9

=28.26 sq. feet

Rounding off to the nearest tenth

A=28.3 sq. feet

So, 28.3 sq. feet need to be painted for the base circle ..

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Answer:

x=3 y=11

Step-by-step explanation:

2x+3=9

2x=6

x=3

y-4=7

y=11

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3 years ago
A scientist wants to measure out 0.31 liters of a liquid, but she can only find a beaker that measures volume in centiliters. Ho
mars1129 [50]

1 liter = 100 centiliter

0.31 * 100 = 31

31 centiliters = 0.31 liters

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What’s the answer????<br><br> 12n-2n=40
artcher [175]

Answer:

4

Step-by-step explanation:

12n - 2n = 10n

10n = 40

40 divided by 10 = 4

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5 0
3 years ago
Read 2 more answers
Student council expects $150 students for a dance and spends $10 on food for each student. The council expects the number of stu
Natalija [7]

Answer:

A) S(t)=150(1.08)^{t-1} B) A(t)=10(0.96)^{t-1}

C) If\:t = 1\\E(t)=150\times10\\ \\If\:t >1\\E(t)=150(1.08)^{t-1}\times10(0.96)^{t-1}

Step-by-step explanation:

Considering that The Student Council expects to 150 students for a dance, and spends $10 per student.

If the expectancy is that the number of students increases by  8%

Then since the growth is 8%

we can write the the Predicted Number of Students as a Geometric Sequence,

A.

a_{1}=150\\a_{2}=150\times 1.08 =162\\a_{3}=162\times 1.08= 174.96\approx 175\\a_{4}=175\times1.08=189\\a_{5}=189\times 1.08=204.12\approx 204\\

Therefore,

S(t)=150(1.08)^{t-1}

B) If we spend $10 per student on the 1st year, but the Council wants to reduce the expenditure 4% yearly. Since we want to reduce 4% we must multiply by 96%.

b_{1}=10\\b_{2}=10*(0.96)=9.6\\b_{3}=9.6*(0.96)=9.22\\b_{4}=9.22*(0.96)=8.85\\b_{5}=8.85*(0.96)=8.50

Therefore we can write:

A(t)=10(0.96)^{t-1}

C)

The total expenditure for food must be reduced, by 4%. As long as the public goes increasing by 8% yearly this

So,

If\:t = 1\\E(t)=150\times10\\ \\If\:t >1\\E(t)=150(1.08)^{t-1}\times10(0.96)^{t-1}

7 0
3 years ago
This one please and thank you !
Makovka662 [10]

Answer:

B

Step-by-step explanation:

We know that in 8 minutes she weeded 40% or .4 of her garden.

5 0
3 years ago
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