Answer:
x=35
Step-by-step explanation:
4x+4+x+1=180, because straight lines add up to 180°
5x+5=180°
5x=180-5
5x=175 divide
35
Often the easiest method of solving a quadratic equation is by factoring. Factoring means finding expressions that can be multiplied together to give the expression on one side of the equation. ... The equation x2+x−6=0 x 2 + x − 6 = 0 is in standard form.
Answer:
504
Step-by-step explanation:
Using the definition
n
= 
where n! = n(n - 1)(n - 2).... × 3 × 2 × 1
Thus
9
=
← cancel the terms of 6! on numerator/denominator, leaving
= 9 × 8 × 7 = 504
Answer: 4
Step-by-step explanation:
Simply plug in each answer choice
320(pi)= 1005.309
pi x 4^2 x 20= 1005.309