Answer:
- 9x² - 12x + 10
Step-by-step explanation:
5g(x) - f(x)
= 5(2 - x) - (9x² + 7x) ← distribute both parenthesis
= 10 - 5x - 9x² - 7x ← collect like terms
= - 9x² - 12x + 10
3/8x - 1/2x = 3
3/8x - 4/8x = 3
-1/8x = 3
-x = 24
x= -24
Total area of canvas used in the cunstruction of the tent = 551 - 1 = 550 meters square.
Area of a cone = πr(r + sqrt(h^2 + r^2))
22/7 * 7(7 + sqrt(h^2 + 7^2)) = 550
7 + sqrt(h^2 + 49) = 550/22 = 25
sqrt(h^2 + 49) = 25 - 7 = 18
h^2 + 49 = 18^2 = 324
h^2 = 324 - 49 = 275
h = sqrt(275) = 16.58
The volume of the tent is the volume of a cone with base radius of 7 meter and height of 16.58 meter.
Volume of a cone = 1/3 πr^2h
= 1/3 * 22/7 * 7^2 * 16.58 = 851.3 m^3
Answer:
your perimeter will be 40cm
Answer:
b
Step-by-step explanation:
because they are asking for twice the sum which equals 2 and then the unknown numbers are x
