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kramer
3 years ago
14

Simplify 7(2.3x10^11) and write in scientific notation

Mathematics
2 answers:
satela [25.4K]3 years ago
6 0
The simplified version:

1.61*10^12

Sorry, but I have no idea what scientific notation is...
Oliga [24]3 years ago
6 0
The answer: 1.4* 10^12
________________________
Explanation:
_____________________
Note: a * (b * c) = (a * b) * c ;
______________________________
7(2.3* 10^11) = (7) * 2.3 * 10^ 11 = 14.1 * 1^ 11;  or 1.4 * 10^12
___________________________________________________
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musickatia [10]

Answer:

Yes

12, 35, 37

16, 30, 34

20, 21, 29

No

18, 24, 42

Step-by-step explanation:

Required

Determine which length form a right triangle

To do this, we make use of Pythagoras theorem where the square of the largest length = the sum of the squares of the other lengths

So:

(1) 12, 35, 37 --- Yes

37^2 = 35^2 + 12^2

1369 = 1225 + 144

1369 = 1369

(2) 16, 30, 34 --- Yes

34^2 = 16^2 + 30^2

1156 = 256 + 900

1156 = 1156

(3) 18, 24, 42 --- No

42^2 =18^2 + 24^2

1764 =324 + 576

1764 =900

1764 \ne 900

(4) 20, 21, 29 -- Yes

29^2 = 20^2 + 21^2

841= 400 + 441

841= 841

3 0
2 years ago
Marcy can make 3 potholders and 8 paper flowers in a day. The following expression, (3 * 2.50 + 8 * 1.25)d represents how much M
frutty [35]

Answer:

(3 * 2.50 + 8 * 1.25) d =

3*2.50 d + 8*1.25 d  

or  

7.50 d + 10 d

8 0
3 years ago
A parallelogram has one angle that measures 50°. What are the measures of the other three angles in the parallelogram?
Sedaia [141]

Answer:

130°, 50°, 130°

Step-by-step explanation:

Two opposite angles of parallelogram are always congruent, so the measure of angle opposite to the angle 50° is 50° too.

Two consecutive angles of parallelogram always are supplementary (add up to 180°), so the angle consecutive to the angle 50° has the measure of

180° - 50° = 130°

Angle opposit to 130° angle has the measure of 130° too.

3 0
3 years ago
Engunun earns $17 per hour training student athletes at Brooklyn university. If Eunguun tutored for 12 hours this month, how muc
adoni [48]

Answer:

204

Step-by-step explanation:

Take the number of hours worked times the amount earned per hour

17*12 =204

3 0
2 years ago
Read 2 more answers
Find the following measure for this figure.<br> Volume =
Rudiy27

Answer:

400 cubic units

Step-by-step explanation:

The volume of a square prism is \dfrac{1}{3} s^2 h. Plugging in the given values, you get:

\dfrac{1}{3}\cdot 10^2 \cdot 12= 400

Hope this helps!

5 0
3 years ago
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