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Sonbull [250]
3 years ago
8

Simplify the expression. write the answer using scientific notation. (0.4 x 10^-6 (0.7 x 10^-2

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0
Answer to the problem above is...
2.8 x 10^-9
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Joshua has $560. He wants to buy a laptop that costs $320 as well as a case for the laptop that costs $65 and is currently on sa
Igoryamba

Answer:$154.73

Step-by-step explanation:

Take 65 and multiple .15 and that will give you the 15% off of the case. When u do that you get 9.75 so then 65-9.75= 55.25 multiply .08 for the sales tax on the case = 4.42 add to 55.25= 59.67 then add the sales tax for the laptop 320 multiplied by .08 = 25. 60 for a total of 345.60 then add that to 59.67 = 405.27 then u have to subtract that from 560 and Josh has $154.73

6 0
4 years ago
Solve for x<br> 3(5x + 4) - 20 - 13x = -4
Strike441 [17]
<span>3(5x + 4) - 20 - 13x = -4
first use the distributive property with </span><span>3(5x + 4)

15x+12-20-13x=-4
combine like terms

2x-8=-4
add 8 to both sides

2x=4
divide both sides by 2

x=2</span>
8 0
3 years ago
Read 2 more answers
Any credit)
Mumz [18]

Answer: $4,365.10

Step-by-step explanation:

Ok, we know that:

The account starts with $2350

There is a simple interest of 3.75% (or 0.035).

Then after one year, the amount in the account will increase by 3.75%, this means that the amount will be:

$2350 + 0.035*$2350 = (1.035)*$2350.

After another year, we have the same increase (but applied to the new amount in the account):

(1.035)*$2350 + 0.035*(1.035)*$2350. = (1.035)^2*$2350

And so on.

You already can see the pattern here, the amount of money in the saving account after N years will be:

M(N) = $2350*(1.035)^N.

Now we can answer:

what is the balance of the account if it earns a  simple interest of 3.75% for 18 years?

Just replace N by 18 in that equation:

M(18) = $2350*(1.035)^18 = $4,365.10

6 0
3 years ago
What is the exact distance from (−1, 4) to (6, −2)?
vladimir1956 [14]
D = √(x2 - x1)^2 + (y2 - y1)^2) = 
= √(6 + 1)^2 + (-2 - 4)^2)  =
= √ (7^2 + 6^2) = 
= √(49 + 36)  =
= √85
5 0
3 years ago
What is a photographic film​
otez555 [7]

Its a plastic film you use if you want to get pictures out immediately from the camera.

8 0
4 years ago
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