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Vera_Pavlovna [14]
3 years ago
11

DG's Plumbing and Heating charges $50 plus $65 per hour for emergency service. Bill was billed $440 for an emergency call. How l

ong was the plumber at Bill's house?
Mathematics
1 answer:
spin [16.1K]3 years ago
8 0
The plumber was at Bill's house for 6 hours
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Write the number 0.000938 in scientific notion.
ss7ja [257]
<span>0.000938 in scientific notion.

First we need to move the decimal to its right and we need a number which is between 1-10. 

0.000938
00.00938
000.0938
0000.938
00009.38

We moved the decimal 4 times and to the right so it will be negative. -4.


9.38 </span>× 10^-4

Scientific notation of 0.000938 is 9.38 × 10^-4.

Check:-

9.38 × 10^-4 = <span>0.000938
</span>0.000938 = <span>0.000938
</span>Correct!

<span>Scientific notation of 0.000938 is 9.38 × 10^-4.</span>
6 0
3 years ago
Identify the sequence as arithmetic, geometric, or neither. Explain your answer.
photoshop1234 [79]
Based on the given sequence of numbers above, the best definition of it would be a geometric sequence. It is a geometric sequence because term of the sequence of numbers after the first is found by multiplying the previous one by a fixed, non-zero number, and the sequence shows a common ratio. 
6 0
3 years ago
20 points, Thanks to whoever helps! (and brainliest)
damaskus [11]

Answer:

To find a 20 percent tip quickly, first find 10%, and then multiply it by 2.

Step-by-step explanation:

To find 10%, move the decimal 1 place to the left. So 10% of 53.82 is 5.382. Let's round that to 5.4 to simplify. Multiply it by 2 to get to 20% which is 10.8 and round to the nearest dollar to make $11.

4 0
3 years ago
Assume that ∠A  is an acute angle. If sin A = 0.994, use a calculator to find the measure of ∠A to two decimal places.   The mea
Sedbober [7]
Basically, you are looking for the ARC SINE of .994 which is
 83.72 Degrees
You could also use an online calculator:
http://www.1728.org/trigcalc.htm


8 0
3 years ago
Is 13.654 rational or irrational​
givi [52]

Answer:

Rational

Step-by-step explanation:

Any number that can be represented as a fraction is rational. 13.654 can be represented as the mixed number 13 and 654/1000, making it a rational number.

8 0
3 years ago
Read 2 more answers
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