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devlian [24]
2 years ago
10

Find the accelartion:

Mathematics
1 answer:
bagirrra123 [75]2 years ago
6 0
A. Man runs (> 2.2 m/s is running) uphill at 6 m/s (???) and decelerates to walking at 2.0 m/s near the top, all in 5 minutes, assuming he ran in a straight line.

Acceleration is (final velocity-initial velocity (m/s) )/time (s)
=(2-6)/(5*60)=-4/300= -0.0133 m/s^2

B. Car goes east for 300 km in 45 min.
Velocity 
=300*1000 m  / (45*60) s  due east
=300000/2700 m/s due east
=111.1 m/s due east
(is it an airplane?  A cesna cruises at 63 m/s  (226 km/h) )
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ale4655 [162]
We can split this up into 3 rectangles.  2 vertical ones (8 x 3) and one horizontal one in the middle (5 x (8 - 5)

8 x 3 = 24
24 x 2 = 48

5 x (8-5) = 5 x 3 = 15

now add 48 + 15 = 63 cm^2
6 0
3 years ago
What is the gcf of 30x^2 and 66x^5?
pantera1 [17]

Answer:

6x^2

Step-by-step explanation:

Express as product of prime factors.

30x^2=2\times 3\times 5\times x^2

66x^5=2\times 3\times 11\times x^5

The greatest common factor is the product of the least powers of the common factors.

The GCF is

2\times 3\times x^2=6x^2

4 0
3 years ago
Diego’s history teacher writes a test for the class with 26 questions. The test is worth 123 points and has two types of questio
Tom [10]
I think the answer would be 15, 8•15=120, leaving 3 points left which would be an multiple choice question, hope this helps:))
4 0
3 years ago
 Triangle PQR has two known interior angles of 24°, and 100°.
Tamiku [17]
180-24=5
180-56=34
Both are equal
D
3 0
3 years ago
Read 2 more answers
The cost for a pack of 24 pens is $4.08 . Find the unit price in dollars per pen. If necessary, round your answer to the nearest
Eduardwww [97]

Answer:

The unit price is 0.17 cents per pen.

4 0
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