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Svetlanka [38]
3 years ago
14

A soap bubble has a diameter of 3 cm. what is the surface area in square cm

Mathematics
1 answer:
Anna71 [15]3 years ago
3 0
<h2><em>4/3 x 3.14 (pi) x 1.5 (radius, radius is half of diameter.) to the third power. We get: 14.14cm^3</em></h2>
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Please pls pls pls ANSWER ASAP!!! :P<br> :)
klasskru [66]

Answer:

20-15z

Step-by-step explanation:

-1+21-15z

20-15z

6 0
3 years ago
Read 2 more answers
Peters mom gave him a $10 bill he purchased a magazine for $4.50 and the tax was 6% how much change did peter get
never [62]

Answer:

$5.50

Step-by-step explanation:

10 - 4.50 = 5.50

7 0
2 years ago
What is the sum1,000+2,000=
Valentin [98]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Help please i really really really need it.....
ruslelena [56]

A)

s = sweater

j = jeans

Equations:

4s + 2j = 140

2s + 3j = 150

B)

4s + 2j = 140

2s + 3j = 150

Multiply (-2) to the second equation

-2 (2s + 3j = 150)

-4s - 6j = -300

Now you have the equations:

4s + 2j = 140

-4s - 6j = -300

-----------------------------add

-4j = -160

  j = 40

4s + 2(40) = 140

4s + 80 = 140

4s = 60

 s = 15

The cost for a sweater is $15 and the cost for a jean is $40

We used the elimination method to solve the system of equations.

C)

Each pair of jean, she will buy 3 sweaters so total = 40 + 3(15) = $85

Total cost for 1 pair of jeans and 3 sweaters = $85

If she has $225 the

$225 / $85 = 2.64

2 jeans = 2 x 40 = $80

6 sweaters = 6 x $15 = $90

So She can only buy 2 jeans and 6 sweaters

3 0
3 years ago
Solve this inequality: 3p – 6 &gt; 21.
babymother [125]
<span>3p - 6 > 21 <=> 3p > 21+6 <=> 3p > 27 <=> p > 27/3 <=> p > 9. So the answer is B. When solving inequalities the idea is to move the terms which contain the unknown quantity to one side and the rest of the terms to the other side. And then perform valid mathematical operations to find the interval value for the unknown quantity.</span>
6 0
3 years ago
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