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Karo-lina-s [1.5K]
3 years ago
7

Han is cycling at a speed of -8 miles per hour; if he starts at the same zero point, what will his position be after 45 minutes?

How much higher is -200 m than 450 m?
Mathematics
1 answer:
seraphim [82]3 years ago
8 0

Answer:

-6 mph

Step-by-step explanation:

45 is 3/4hour so -8 times 3/4= -24/4=-6mph

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The length of the room is 2½ times the breadth. The perimeter of the room is 70 m. What are the length and breadth of the room?
irakobra [83]

Answer:

length=25m

breadth=10m

Step-by-step explanation:

2.5units+2.5units+1unit+1unit=7units

70/7=10

length=10x2.5=25

breadth=10

(sorryy im not really sure but i hope it helps :D)

3 0
4 years ago
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F(t)=-16t^2+144t. After how many seconds does the toy rocket hit the ground?
Margarita [4]
9 seconds
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Than solve for “t”
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7 0
3 years ago
Pls answer correct<br> for class 9 only
Len [333]

Answer:

hope it helps

Step-by-step explanation::

a) Consider a body having initial velocity 'u'. Suppose it is subjected to a uniform acceleration 'a' so that after time 't' its final velocity becomes 'v'. Now, from the definition of acceleration we know that:  

Acceleration =  Time taken  Change in velocity  or Acceleration =  time taken

                Final velocity- Initial velocity    

So, a=  t v−u

​ at=v−u  and, v=u + at  

where v= final velocity of the body

u= initial velocity of the body

a= acceleration

and t= time taken  

(b) Initial velocity, u=54km/h=15m/s

Final velocity, v=0m/s

Time, t=8s

Acceleration, a=?

a=  t v−u

​  =  8 0−15

​  =  8 −15 ​  m/s  2

=−1.875m/s  2

4 0
3 years ago
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Hatshy [7]
<span>c.consistent and independent </span>
6 0
4 years ago
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Helga [31]
The answer is C.

The first step in a math problem with distribution involved is to take care of the parentheses (PEMDAS). This means you have to distribute 3/4 to the (x - 8).

I hope this helped!
8 0
3 years ago
Read 2 more answers
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