Add the coefficients of like terms.
a) (6x³ +8x² -2x +4) + (10x³ +x² +11x +9)
= (6+10)x³ + (8+1)x² + (-2+11)x + (4+9)
= 16x³ +9x² +9x +13
b) (16x³ +9x² +9x +13) + (3x -2)
= 16x³ +9x² + (9+3)x + (13-2)
= 16x³ +9x² +12x +11
From the equation given, the time for the black mamba snake to cover distance d, will be d/16 while that for the the rought-scaled snake would be d/1.5.
Assume that the distance covered by both snakes is 200 meters;
Then,
Time taken by the black mamba is 200/16 = 12.5 seconds, and
Time taken by the rought-scaled snake is 200/1.5 = 133.33 seconds
Clearly the black mamba is faster at 12.5 seconds compared with the rought-scaled snake.
Answer:
9,000
Step-by-step explanation:
180/400 × 20,000 = 9,000
Answer:
it is 37.7
Step-by-step explanation:
The circumference of the circle with a radius of 12 cm = 2(3.1416)(12) = 75.4 cm
The circumference of the semicircle is half that of a circle,
and is therefore (1/2)(75.4) = 37.7 cm.
Answer:
n + 14
I don't know if it's correct but i'm trying to help :)
