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algol [13]
3 years ago
10

Evaluate the rational expression. Express your answer as an integer, simplified fraction, or a decimal rounded to two decimal pl

aces. If the expression does not represent a real number, indicate not a real #.​

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

-3

Step-by-step explanation:

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A bee's wings can beat about 6.48 * 10 ^ 5 times an hour. How is this number written in standard form?
luda_lava [24]

Answer:

648000 times/hr

Step-by-step explanation:

6.48 * 10^5
Move the decimal 5 times to the right.
The answer you should get is 648000 times per hour.

8 0
3 years ago
Understanding the Pythagorean Theorem – Finding an Unknown Hypotenuse (find the distance of the mechanical webbing needed by Spi
barxatty [35]

Answer:

100√65 yds

Step-by-step explanation:

The Pythagorean Theorem is a^2+b^2=c^2. In this case a=700, b=400, and c is the unknown.

  • 700^2+400^2=c^2
  • 490000+160000=c^2
  • 650000=c^2
  • c=√650000

√650000=√(100^2•65)=100√65

7 0
3 years ago
(4.8 x 10^9) divided (8 x 10^6)<br> Give your answer in standard form
Romashka-Z-Leto [24]

Answer:

1.67×10^-3

=(8×10^6)/(4.8×10^9)

=1.67×10^6-3

=1.67×10^-3

8 0
3 years ago
Alayna worked 44 hours last week. Her hourly rate is $9.00. Alayna’s gross pay for last week was $
Leni [432]

Answer:

$396

Step-by-step explanation:

Alayna's hourly rate (or pay per hour) is $9.

She worked 44 hours in total last week. To solve, multiply 44 with 9

44 x 9 = $396

Alayna's gross pay for last week was $396.

~

6 0
3 years ago
Read 2 more answers
melissa is driving along a highway at a constant soeed of 65 mph. how long does it take her to travel 90 miles?
Umnica [9.8K]

Answer:

1.4 hours or 83 minutes

Step-by-step explanation:

90 mi / 65 mph = 1.4 hr

4 0
3 years ago
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