H= 8 cos 45° = 8/√2 .......answer !!
I can't understand your options so ......by the way ...answer is 8/√2 or you can say 4√2 !!
Answer:
25km/hr (take the word train as bus )
Step-by-step explanation:
Answer
Let x km/hr be the constant speed of the train,
Then Time taken to cover 300km=
x
300
hrs
Time taken to cover 300km when the speed is increased by 5km/hr=
x+5
300
hours
It is given that the time to cover 300km is reduced by 2 hours
∴
x
300
−
x+5
300
=2
⇒
x(x+5)
300(x+5)−300x
=2⇒2x
2
+10x=1500
⇒x
2
+5x−750=0⇒x
2
+30x−25x−750=0
⇒(x+30)(x−25)=0⇒x=25orx=−30
But x cannot be negative. Therefore x=25
Hence, the original speed of the train is 25km/hr
Answer:
×
Step-by-step explanation:
×
as scientific notation is equal to ×
Answer: The height of the chest is 11/24
Step-by-step explanation:
Step-by-step explanation:
Given expression
8(5s)
The expression equivalent to the given expression is
B. 5(s 8)
D . 40s
Hope it will help :)❤
