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Sav [38]
3 years ago
7

A balloon has a circumference of 11 cm. Use the circumference to approximate the surface area of the balloon to the nearest squa

re centimeter.
Mathematics
2 answers:
elixir [45]3 years ago
8 0
Try <span>38.465cm I'm not good at math but its the best I could do

</span>
Nezavi [6.7K]3 years ago
5 0
C = 2(pi)(r) so 11= 2(pi)(r) if you divide 11 by 2(pi) using pi as 3.14 you get r = 1.752 then plug in the number to S.A. = 4(pi)r^2 you will get approximately 38.55 sq. Cm of surface area.
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Given h(x) = -x + 5, find h(-5).
Murrr4er [49]

Answer:

10

Step-by-step explanation:

h(x) = -(-5) + 5

h(x) = 5 + 5

h(x) = 10

3 0
3 years ago
Which of these is an optional/voluntary deduction?
11111nata11111 [884]
Your answer is healthcare insurance
3 0
3 years ago
1kg= 2.2 pounds<br> Change 44 pounds in kg
Lyrx [107]
<u><em>Answer:</em></u>
44 pounds = 20 kg

<u><em>Explanation:</em></u>
<u>We are given that:</u>
1 kg = 2.2 pounds

To convert 44 pounds into kg, all we have to do is <u>cross multiplication</u> as follows:
1 kg .................> 2.2 pounds
?? kg .................> 44 pounds

<u>Now, we solve as follows:</u>
4 kg = \frac{44*1}{2.2} = 20 pounds

Hope this helps :)
4 0
4 years ago
A chemical flows into a storage tank at a rate of (180+3t) liters per minute, where t is the time in minutes and 0&lt;=t&lt;=60
Yuliya22 [10]

Answer:

The amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

Step-by-step explanation:

Consider the provided information.

A chemical flows into a storage tank at a rate of (180+3t) liters per minute,

Let c(t) is the amount of chemical in the take at <em>t </em>time.

Now find the rate of change of chemical flow during the first 20 minutes.

\int\limits^{20}_{0} {c'(t)} \, dt =\int\limits^{20}_0 {(180+3t)} \, dt

\int\limits^{20}_{0} {c'(t)} \, dt =\left[180t+\dfrac{3}{2}t^2\right]^{20}_0

\int\limits^{20}_{0} {c'(t)} \, dt =3600+600

\int\limits^{20}_{0} {c'(t)} \, dt =4200

So, the amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

5 0
3 years ago
Can I plz get an answer to this
MatroZZZ [7]

Answer:

b= -60 or (0,-60)

Step-by-step explanation:

remember it is negative and it is on the y line!!

4 0
3 years ago
Read 2 more answers
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