Suma a 3 numere este 1.cat este al doilea numar, daca primul este ,iar al treileaeste dublul primului? ?

Hypotheticly a is the first number, b the second and c the last one.

a=9999, c=2a

a+b+c=100 000

if a+1=10 000 (no letter) then c= 2×(a+1-1)=2×(a+1)-2 so

a+1+b+2×(a+1)-2=100 000

b=72 000

the second number is as good as 72 000

you have to put the graph on here with the question

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)