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masya89 [10]
3 years ago
7

Question 5 of 5

Mathematics
1 answer:
Anika [276]3 years ago
6 0

Answer:

yes because 6+13=18 is true

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What is the value of the expression 8.3 × 104 − 2.5 × 103 − 1.9 × 104 written in scientific notation?
bezimeni [28]
Remark work with the two numbers that are 10^4 first. Then add in the one that goes to 10^3

Method one
You could change these all to integers and then take it back to scientific notation.

 83 000
<u>-19 000</u>
  64 000
<u>-   2 500
</u>  61 500 <u /><<<<<< answer

Method two
Keep the scientific notation.
 8.3 * 10^4
<u>-1.9 * 10^4</u>
 6.4 * 10^4
<u>-  .25*10^4</u>  Note the powers of ten must be the same.
  6.15*10^4 <<<<<<<< answer
<u>
</u>Either method works. 
<u>
</u>You could use your calculator to get the right answer. I'm not sure all calculators retain the scientific notation. Test yours to see what it does. Enter 8.3*10y^x 4 *1 = 
<u>
</u>Your calculator might have x^y or ^ to record powers. You may also have EE and one of your keys.
<u>
</u>See if your calculator returns 8.3*10^4 or if it returns 83000<u>
</u>
4 0
3 years ago
Read 2 more answers
Chris can be paid in one of two ways. Plan A is a salary of ​$310 per​ month, plus a commission of ​%7 of sales. Plan B is a sal
melisa1 [442]

Answer:

Plan A is a salary of ​$360 per​ month, plus a commission of 8​% of sales. Plan B is a salary of ​$740 per​ month, plus a commission of 3​% of sales.

Step-by-step explanation:

3 0
3 years ago
Solve this equation 2cos^2x-9cosx-5=0
Nesterboy [21]
2 (n π - i tanh^(-1)(sqrt(2/3))) should be the answer
6 0
3 years ago
What is the slope of the line that crosses through points (0,0) and (1,2). How can Find the answer to the problem?
qwelly [4]

Answer:

The correct answer is m = 2/1 because they first point it reaches is (1,2) and so you insert those numbers (x,y) into the rise and run equation (y/x) and get the answer 2/1.

Hope this helps!

(Hint: M = Slope)



5 0
3 years ago
The following week , tamiko earns a check for 109.60 for working at a fast food restaurant and a small bonus check for 34.15 det
AlexFokin [52]

Answer:

Tamiko will save 86.25

Step-by-step explanation:

Tamiko's earning from fast food restaurant check = 109.60

Tamiko's earning from small bonus check = 34.15

net amount earned by Tamiko = Tamiko's earning from fast food restaurant check + Tamiko's earning from small bonus check

net amount earned by Tamiko = 143.75

As she wants to save \frac{3}{5} of the net amount.

the amount saved = (\frac{3}{5} ) 143.75

                               = 86.25

4 0
3 years ago
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