Answer:
The answer is the option D
; All real numbers
Step-by-step explanation:
we have
![f(x) = 3x + 2](https://tex.z-dn.net/?f=f%28x%29%20%3D%203x%20%2B%202)
![g(x) =7x + 6](https://tex.z-dn.net/?f=g%28x%29%20%3D7x%20%2B%206)
Calculate f(x)*g(x)
![(3x + 2)*(7x+6)](https://tex.z-dn.net/?f=%283x%20%2B%202%29%2A%287x%2B6%29)
Multiply applying the distributive property
![(3x + 2)*(7x+6)=3x*7x+3x*6+2*7x+2*6\\=21x^{2}+18x+14x+12\\=21x^{2}+32x+12](https://tex.z-dn.net/?f=%283x%20%2B%202%29%2A%287x%2B6%29%3D3x%2A7x%2B3x%2A6%2B2%2A7x%2B2%2A6%5C%5C%3D21x%5E%7B2%7D%2B18x%2B14x%2B12%5C%5C%3D21x%5E%7B2%7D%2B32x%2B12)
The domain of the function is the interval------> (-∞,∞)
All real numbers
Answer:
x=2 and y=6
Step-by-step explanation:
1. Brandi was driving 60mph down the highway. Ratio is 60/1. 60mi per 1 hr
2. Brandi bought 5 apples at the store and 6 oranges. The ratio of apples to oranges is 5:6 or 5 to 6.
3. Brandi has 3 sisters and 1 brother. Ratio of sisters to brothers is 3:1 or 3 to 1.
4. Brandi has 20 shirts and 10 pants in her closet. The ratio of shirts to pants is 20:10 or 20 to 10.
5. Brandi has 12 boys in her class and 13 girls. The ratio of boys to girls is 12:13 or 12 to 13
Hope this helps:)
Answer:
$8,569.12
Step-by-step explanation:
16×14×2+16×18×2+14×18×2=1528