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Multiple choice. If the sequence is 9, 16, 25, 36, 49 choose the correct expression. A. n^2 B. (3n)^2 C. (n+2)^2

Fist draw a table of the sequence with each number's corresponding n value.1 2 3 4 5 9 16 25 36 49Now draw a table for each option and see if it matches, it is important to remember to carry out the sum with...
LC
Answered by Lavana C. • Maths tutor
2780 Views

If 3x =15 and x+y =7 what is (3y)^2?

First divide 15 by 3 to find xx= 15/3 = 5Now use x to find yx +y = 7 substitue x. 5+y=7y= 7-5= 2Now you know x=5 and y=2 use this to calculate the answer, remembering to do the sum within the brackets first....
LC
Answered by Lavana C. • Maths tutor
3064 Views

What is an obtuse and acute angle?

An obtuse angle is an angle which is bigger than a right angle (90 degrees) but less than a straight like (which is 180 degrees). An acute angle is an angle which is bigger than 0 degrees and less than a rig...
SV
Answered by Sam V. • Maths tutor
4019 Views

Margret wants to share £36 in a ratio of 3:4 between her two grandchildren, Anna and Katie. How much money will Katie get?

36/12 = 33x4 = 12Katie gets £12
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Answered by Martha N. • Maths tutor
4366 Views

If y = 15 + 5(x + 2), and x = 6, what is y?

Because we're told that x = 6, we can just rewrite the original equation but replace the x with a 6. So: y = 15 + 5(6 + 2) 6 + 2 = 8, so we can rewrite this again as: y = 15 + 5(8) 5(8) is just another way o...
AH
Answered by Alfie H. • Maths tutor
2825 Views