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Karolina [17]
3 years ago
13

The radius of a certain molecule is about 1.21.2 angstroms. One angstrom is 0.000000010.00000001 cm. What is the diameter of thi

s molecule in​ centimeters?
Mathematics
1 answer:
Ad libitum [116K]3 years ago
6 0
Ok the diameter would be 0.000000024cm 

because 1.2 x 0.00000001 = 0.000000012 

that is the radius so we multiply by 2 to get the diameter 

0.000000012 x 2 = 0.000000024
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I travel 1/10 mile in 1/2 second. how many can i travel in one second
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2/10 miles

Step-by-step explanation:

2 x 1/10 = 2/10

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Addy bought a new shirt and she had a 20% off coupon . The coupon took $8.25 off of the price of her shirt. What did she pay wit
zloy xaker [14]

Answer:

$33

Step-by-step explanation:

Given: Addy had 20% off coupon.

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Lets assume the original cost of shirt be "x".

We know Addy had 20% off coupon, which help to reduce the price of shirt by $8.25.

∴ We can form an equation to know the original price of shirt.

⇒\frac{20}{100} \times x= \$ 8.25

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⇒x= 8.25\times 5

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8 0
3 years ago
Please help with this!!! Im so confused, I will mark brainliest if right!! Explain
devlian [24]

Answer: Yes these triangles are similar

Step-by-step explanation:

First lets write down what we know just to make life easier

x=9

TL should be similar to CH

LY should be similar to KH

The angles should be equal due to SAS

So the first thing we know is true is the fact that they have equal angles. Now we have to find out if the sides are similar or if they change by the same ratio to the other. If TL is similar to CH and TL=25  and CH=10 what is the change in size or dilation. Division should do the trick so 25/10=2.5 so TY is greater than CH by a factor of 10. Which means that LY should also be greater than KH by a factor of 2.5. If we are told that x=9 than side LY or 4(9)-1=35 and KH 9+5=14

So side KH is 14 and LY is 35. Now to check if they are similar then KH should be greater by a factor of 2.5. If this is not true than the sides are not similar.  35/2.5=14

Since 35 divided by 2.5 is 14 we can tell both sides TL and LY are greater than KH and CH by a factor of 2.5

Hope this helps.

8 0
3 years ago
The sum of two numbers is 39. The sum of twice the larger number and three times the smaller number is 93. Find the smaller numb
ExtremeBDS [4]

Answer:3 * (n + 4) = 93

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n = 27

Step-by-step explanation:

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3 years ago
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