Answer:
Use the formula for Arithmetic only if it is Arithmetic: a1+ (n-1)d
a represents the first number in the sequence, n represents the number, and d represent common difference
Use the formula for geometric sequence: an=a1r the exponent of r to n-1
an represents the nth term you are trying to find, a1 represents the first number, r represents the common ratio, and n-1 is just the nth term minus 1.
Once you figure out if the sequence is arithmetic or geometric you one of those formulas.
Answer:
x=5
Step-by-step explanation:
3x^2=75
x^2=25
x=5
Step-by-step explanation:
Because 2x and 40° are complementary angles.

Answer:
Value of given expression
when p = -4 and q = 2 is -4.
Step-by-step explanation:
Given expression ,
We have to evaluate the value of the expression when p = -4 and q = 2
Consider the expression given 
To find the value a the given value just put the values in the given expression
becomes 
Solve further to get its value,


Thus, value of given expression
when p = -4 and q = 2 is -4.
Answer:
i think its c ...........