Answer:
y = -2 ( (x^2) + (2*x*5) + (5^2)) - 30
y = -2 ( x^2 + 10x + 25) - 30
y = -2x^2 - 20x - (2*25) - 30
y = -2x^2 - 20x - 50 - 30
y = -2x^2 - 20x - 80
As far as I'm aware, you can't use the distributive property for a simple multiplication problem. However, the answer to 9 x 76 is 684. Hope this helped!
-TTL
Answer:
f(x) = 8 + 0.25x
Step-by-step explanation:
The minimum cost is $8, for up to 4 pounds.
The added cost is ($0.25/oz)(x), where x is trhe ounces over 4 pounds
The total cost is the sum of these two:
f(x) = 8 + 0.25x
Hello!
To find our answer, we will want to multiply our circumference by 15. The reason why is because the circumference is the distance around the circle, or tire in this case. If it goes around 15 times it will have traveled this distance 15 times.
Therefore, we find our circumference, multiplying pi by our diameter. It appears that the total height is 26 in.
26
≈81.68
Note that it wants us to round for the nearest FOOT. Therefore, we divide our answer by 12 and round to the nearest whole number.
81.68/12≈6.81≈7
Therefore, it will have traveled 7 feet.
I hope this helps!
Let the number of article be x,
let the machine required be y
x/42=63
x/y=54
x=63*42
x=54*y
∴42×63=54y
y=49