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elena-s [515]
3 years ago
11

I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
nata0808 [166]3 years ago
5 0
The answer to the problem is D pls give brainliest
Aleonysh [2.5K]3 years ago
3 0
The answer would be D yeahhhhhh
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How many moles are in a sample of 3.01 x 10^18 formula units of sodium hydroxide (NaOH)?
Lunna [17]

Step-by-step explanation:

We can use the formula to find the number of moles. As ,

:\implies n = No. of particles/ N_A

:\implies n = 3.01× 10¹⁸/6.022 × 10²³

:\implies n = 1/2 / 10⁵

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4 0
2 years ago
In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be su
prisoha [69]

Answer:

1568

Step-by-step explanation:

The computation of the minimum sample size is shown below:

Given that

Error E = 11

The population standard deviation \sigma =217

Confidence level 1-α = 95%

Now following formula should be used

n > (Zalpha ÷ 2 × sigma ÷ E)^2

As we know that

Zalpha ÷ 2= 1.96

Now the sample size is

n> (1.96 × 202  ÷ 10)^2

= 1568

6 0
2 years ago
One number is 9 more than another. if the sum of the two numbers is 171, find the two numbers
allochka39001 [22]
Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171
4 0
3 years ago
What makes "24" using the numbers "4 4 6 5"
pashok25 [27]

Answer:

4 and 6

Step-by-step explanation:

4 and 6

8 0
3 years ago
Read 2 more answers
Geoffrey and his babysitter spent 20 minutes preparing dinner, 2 hours and 30 minutes playing board games, and half an hour maki
harkovskaia [24]
200 minutes 
20 + 60 + 60 + 30 + 30 = 200
6 0
3 years ago
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