In the expansion of the function e sinx , the coefficient of x is (a)-2 (b) 2 (c) 3/2 (d) None of these​

Step-by-step explanation:

just draw diagram properly and then answer will come correct

Given

• height of the wooden platform equal to 50 m
• angle of elevation 30°
• angle of depression is 60 degree

To find

• the height of the hill
• the distance between the hill and the point where the girls stands.

Solution

from the figure we can write, considering the triangle ABD

tan30 = AD/BD

or, tan30 = AD/d

or, d = AD/tan30

or, d= √3AD ....(1)

considering the triangle BDC

tan60 = DC/BD

or, tan60 = 50/d

or, d= 50/√3

or, d = 28.86m

distance of the girl from the hill is 28.86m

using equation 1

AD = 28.8/√3

Or, AD = 16.6m

therefore the height of the hill, AD + 50

Or, 16.6 + 50 = 66.6 m

Explanation:

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pubchem CID-171918

Answer:

sister will we become siblings

because your thoughts and thinking is legendry

we achieve highest goals in our life

Answer:

The correct Answers would be:

(i) walking

(ii) to study

(iii) to visit

(iv) swimming

(v) to walk

Hope this helps you!

Explanation:

Please check the question, as it will be "infinitives" and not "infinites".

Answer:

5 hours

Step-by-step explanation:

Distance 1 = 250km

Speed 1 = 25km/h

Time 1 = Distance 1 ÷ Speed 1

= 250/25

= 10 hours

Time 2 = 560/70

= 8 hours

Time 3 = 720/40

= 18 hours

Time 4 = 450/90

= 5 hours

Time 5 = 840/120

= 7 hours

Time 6 = 360/30

= 12 hours

Total Distance

= 250 + 560 + 720 + 450 + 840 + 360

= 3180km

Total Time

= 10 + 8 + 18 + 5 + 7 + 12

= 60 hours

Average Speed = Total Distance ÷ Total Time

=> x = 3180 ÷ 60

=> x = 53km/h

Time Taken To cover the next distance

= (53 + 4x) ÷ x

= (53 + 4 × 53) ÷ 53

= (53 + 212) ÷ 53

= 265/53

= 5 hours