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steposvetlana [31]
1 year ago
12

(3.85 x 103) - (1.4 x 102) In scientific notation I need ASAP plss Ill give points

Mathematics
1 answer:
Arisa [49]1 year ago
7 0
Scientific Notation: 3.45 x 10^5
E Notation: 3.45e5
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The original price of a toaster is $18.00. If the toaster is marked down 25%, what is the new price?
Alla [95]

Answer:

$13.50

Step-by-step explanation:

First, we got to multiply $18 by 25% or .25

$18 x .25 = $4.50

Lastly, we just subtract $4.50 from $18.

$18 - $4.50 = $13.50

5 0
3 years ago
The volume of a box is 400in3. if the height is 10in and the length is 8in, what is the width of the box (volume=l•w•h)
tankabanditka [31]
10•8=80
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6 0
3 years ago
Please help with questions<br> 1d) and 1e)<br><br> Any help is much appreciated thanks
Anestetic [448]

Answer:

1d 6.742     1e 6

Step-by-step explanation: By sketching out the graph you can see the positive x intercept to find 1d

You can also replace h with 25 and isolate t to find 1e

5 0
2 years ago
Plz help! read the instructions and write a proper answer and if you don't i will report you! And the first one to answer right
ahrayia [7]

Answer:

1 = 0.61, 2 = 1.13

Step-by-step explanation:

The first is 25 + 25 + 10 + 1. This is 61 cents which is 0.61 of 1 dollar. The second is 100 + 10 + 1 + 1 + 1. This is equal to 113, 0r 1.13

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2 years ago
You want to create a 99% confidence interval with a margin of error of .5. Assuming the population standard deviation is equal t
miss Akunina [59]

Answer:

Sample size minimum is 60

Step-by-step explanation:

given that you want to create a 99% confidence interval with a margin of error of .5.

The population  standard deviation is equal to 1.5

i.e. \sigma = 0.5

Confidence level = 99%

Since population std deviation is known, we can use Z critical value for finding margin of error

Z critical value for 99% = 2.58

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2.58*\frac{1.5}{\sqrt{n} }=0.5\\\sqrt{n} =7.74\\n =59.90\\n=60

8 0
3 years ago
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