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IrinaVladis [17]
3 years ago
9

Brainliest to first answer correct.

Mathematics
1 answer:
suter [353]3 years ago
5 0

Answer:

Option A is correct.

Step-by-step explanation:

The height of the rectangular pack is h1 = 4r

The height of the parallelogram = 2r + the height of equilateral triangles with a side of 2r

The height of equilateral triangle with a side of 2r = (side)/2*√3

=(2r)/2 *√3 = r√3

The height of the parallelogram h2 = 2r+r√3 = r(2+√3)

So,the ratio of h1 to h2 is :

4r : r(2 +√3)

Cancelling r we get

Hence, the ratio is  4 : 2 +√3

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When f(x)=-3, what is x?
Anna35 [415]

Answer:

Step-by-step explanation:

For example, if f(x)   =  2x   + 7

      then         f(-3) = 2(-3) + 7

                     f(-3) = 1

3 0
3 years ago
What are all the common factors?
lord [1]

Answer:

2,3,6

Step-by-step explanation:

8 0
3 years ago
Devon bought running shocs at a price that was 1/4 off the original price of $88. He paid a sales tax of 7% on
larisa86 [58]

The correct answer is C. $ 9.38

Explanation:

The first step to solve this mathematical problem is to know the price of the shoes. About this, we know the price is 1/4 of $88 plus taxes. You can find how much is 1/4 of $88 by following this process:

1. Write the amounts given

\frac{1}{4}  of 88

2. Divide the number by the denominator (bottom number) and then multiply by the numerator

88 ÷ 4 = 22

22 x 1 = 22

This means the discount was  $22 and $88- $22 = $66, which is the price with the discount. Now, it is necessary to add the sales tax, which can be done by finding the 7% of $66 and adding this number to $66 (the price of the shoes including the 1/4 discount)

1.  Write the values

66 = 100 (66 represents the total or 100%)

x   =  7 (7% is the value you want to know and the x represents the value is not known)

2. Cross multiply

x 100 = 462

3. Find x

x = 462 ÷ 100

x = 4. 62 ( value of taxes)

Now, add the taxes to the price $66 + $ 4.62 = $70.62 (price with taxes). Finally, we know Devon paid using four $20 bills. This means he gave the clerk $80 ($20 x 4 = $80). Finally, to know how much is the change subtract the price of the shoes from the money Devon gave the clerk $80 - $70.62 = $9.38

4 0
3 years ago
How many nickels will fit in a 2 liter bottle
lara [203]
A nickel has a diameter of 21.21 mm and a thickness of 1.95 mm 

<span>2.121 cm diameter </span>
<span>0.195 cm thickness </span>

<span>Think of a nickel as a cylinder </span>

<span>r = 2.121/2 = 1.0605 cm </span>

<span>V = pi * r^2 * h </span>
<span>V = pi * 1.0605^2 * 0.195 cubic cm </span>

<span>2 liters = 2000 cubic cm </span>

<span>2000 / (1.0605^2 * 0.195 * pi) => </span>
<span>2902.84713216 </span>

<span>Your upper limit is 2902, but it could be as little as 0 (for instance if the 2L bottle was only 1 cm wide, then you wouldn't be able to fit a single nickel in there) </span>

<span>I'd say that you could expect about a 70% packing efficiency, just off the top of my head </span>

<span>2900 * 0.7 => </span>
<span>290 * 7 => </span>
<span>300 * 7 - 10 * 7 => </span>
<span>2100 - 70 => </span>
<span>2030 </span>

<span>I'd expect around 2000 nickels would fill up the bottle quite nicely, supposing you can get the nickels into it.</span>
8 0
3 years ago
Gerrald is designing a plastic container for the Slushie drink company. The container has a hemisphere shaped top and cone shape
Akimi4 [234]
Hbghmymyjrvrv t to get d to rs
8 0
3 years ago
Read 2 more answers
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