The first term of GP, a=4
Common ratio=
=
=-5
r=-5
nth term of GP, an=a
a8=4*
a8=4*
a8=4*-78125
a8=-312500
Answer:
1)Distance covered by cyclist=3.75 miles.
Time =0.3 hours.
Speed= Distance ÷Time
Speed =3.75÷0.3=12.5 miles per hour.
2) Speed = 12.5 miles per hour, Distance = 4.5 miles .
Time = Distance ÷Speed.
Time = 4.5÷12.5=0.36 hours.
Time taken to cover 4.5 miles is 0.36 hours.
Answer:
37/5
Step-by-step explanation:
7 2/5 = 37/5
5x7=35
35+2=37
Multiply the whole number and denominator then, add the numerator and put the sum of that back ontop of the denominator
Example:
W N/D DxW=X X+N= Y
W N/D = Y/D
Area = (5x + 4)(4x - 4)
= 20x^2 - 20x + 16x - 16
= 20x^2 - 4x - 16 Answer
Its G
For the box that contains the plain pencils and pens, the probability of choosing a pencil is 5/8ths chance, or you could turn this into a decimal which is <span>62.5% chances.
For the other box the chance is half and half, so 1/2 or 50%.
I hope this helps! :)
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