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3 years ago

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A balloon has a circumference of 16 cm. use the circumvents to approximate the surface area of the balloon to the nearest Square

centimeter.
A. 804 CM ^2
B. 326 Cm^2
C. 256 cm^2
D. 81 cm^2

PLEASE HELP ASAP!!!!!

2 answers:

pav-90 [236]3 years ago

7 0

I think it's C. 256cm

tensa zangetsu [6.8K]3 years ago

7 0

I think it might be C

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Pls help for brainliest

Minchanka [31]

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πr^2 = area

Half the diameter to get the radius

Substitute the values in:

area = 3.142 x (7)^2

area = 153.958 cm^2

Have A Nice Day ❤

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4 years ago

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Consider functions f and g.1 + 12f(1) = 12 + 4. – 12for * # 2 and 7 -64.2 – 16. + 1641 +48for a # -12 Which expression is equal

lisabon 2012 [21]

Given the following functions below,

$\begin{gathered} f(x)=\frac{x+12}{x^2+4x-12}\text{ and} \\ g(x)=\frac{4x^2-16x+16}{4x+48} \end{gathered}$

Factorising the denominators of both functions,

Factorising the denominator of f(x),

$\begin{gathered} f(x)=\frac{x+12}{x^2+4x-12}=\frac{x+12}{x^2+6x-2x-12}=\frac{x+12}{x(x+6)-2(x+6)}=\frac{x+12}{(x-2)(x+6)} \\ f(x)=\frac{x+12}{(x-2)(x+6)} \end{gathered}$

Factorising the denominator of g(x),

$\begin{gathered} g(x)=\frac{4x^2-16x+16}{4x+48}=\frac{4(x^2-4x+4)}{4(x+12)} \\ \text{Cancel out 4 from both numerator and denominator} \\ g(x)=\frac{x^2-4x+4}{x+12}=\frac{x^2-2x-2x+4}{x+12}=\frac{x(x-2)-2(x-2)}{x+12}=\frac{(x-2)^2}{x+12} \\ g(x)=\frac{(x-2)^2}{x+12} \end{gathered}$

Multiplying both functions,

$undefined$

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1 year ago

162 ⋅ 90 238·56 238 ⋅ 34 =

ollegr [7]

1572455566080 is your answer! Hope I helped! :D

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3 years ago

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PLEASEE help me please I’m so confused :( marking the first best answer as brainliest

mixas84 [53]

I wrote it roughly.

Hope it helps.

I am sorry.

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3 years ago

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Jill earned $40 from a carpool plus $9 per hour (h) babysitting this week. Which of the following expressions best represents Ji

Svetlanka [38]

Answer: 9h+40 (C)

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3 years ago