exam Maths Puzzle Numerical Ability

Use the geometric sequence of numbers 1, 2, 4, 8,... to find the following:

a) What is r, the ratio between 2 consecutive terms?

b) Using the formula for the nth term of a ge

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exam Other Question

I need some help with finding the value of the following: I will need to type out the words cuz computers dont have the signs used,

1.exponent3 square root -64
2.exponent4 suare root 27
3.4+suare root 7 divided by 7 A rectangular lot, whose area is 210 meter square, has one of its longer sides next to a river. The total length of fence surrounding the lot is 42 meter. Find the dimensions of the lot.