Urgent! Please answer as quickly as possible. I have no idea whether this is related to mathematics because its an arithmetic progressions question. This is a Secondary one question


Q1. Find the sum of the first N odd numbers.
Q2. Find the sum of the first n natural numbers
Q3. Write down three integers in A.P whose produce is a prime number

Ps help me to solve .

Binomial theorem ~

Expand (1-x+x^2)^5 up to term x^3

Please show your working thank you

Thanks Jieheng .

Pls help me to solve sec 3 a math


Use suitable substituitions to solve each of the following equations.

a) 5^x + 5 = 30(5^x-1)

b) 9^x + 10(3^x) = 3^x+2 + 12

Thanks

Thank you Jieheng.

Thank u jieheng can u pls help me another ques


Solve the simultaneous equations.

2x - 5y= 12
3x - 2y = 7

Thanks

Pls help me to slove sec 3 emath


Factorise each of the following completely.
a) ab^2 - 16a
b) (x^4 - x^2) + (x^2 - 1)
c) m - n - 1 + mn

Thanks! !

Please help to solve sec 3 amath


Use the substitution u =4^x to solve each of the following equations.
a) 2(4^x) + 4^x+2 = 9(4^-0.5)
b) 4^x-1 + 16^x = 66

Please show me the working

Thanks in advance

Thank you for your help Jieheng.

Hi, can someone help me answer these two Secondary 3 Questions…


1. A motorist started driving from Point G to Point H which is 188km apart. he travelled 30km at an average speed of x km/hr for the first part of the journey. The average speed increased by 12km/hr for the rest of the journey. Given that he took 1.5hrs to complete his journey, find the speed for the first part of the journey, giving your answer corrected to three significant figures.

2. A housewife planned to buy 430 worth of vegetables at x cents/kg.

(E) Write down an expression, in terms of x, for the number of kg she planned to buy.

(F) She found that the price of vegetables had decreased by 6 cents/kg. write down an expression in terms of x for the number of kg she can buy for $30 now.

(G) Given that she actually bought 5 5/9kg more than she had planned, form an equation in x and show that it reduces to x^2 - 6x - 3240 =0.

(H) Solve the above equation and use your answer to find the number of kg of vegetables she bought after the price had decreased.

Thank you.

P.S. : Please show the working for the respective questions.