I think it is d not sure tho
Answer:
$66.50
Step-by-step explanation:
Given that
she bought seven 1.45 rolls
Three 7.60 sweet loaves
and four 8.40 sweet rolls
We need to find out how much she paid in total
So,
= 7 × 1.45 + 3 × 7.60 + 4 × 8.40
= $10.15 + $22.80 + $33.60
= $66.50
Hence, she paid in total of $66.50
The same would be considered and relevant
X= <span>√(54-3x)
square both sides:
x^2=54-3x
bring everything to the left:
x^2 + 3x - 54= 0
solve using quadratic formula:
x= (-3 +/- </span>√(9- 4(-54)))/2=
(-3+/- <span>√(9+216))/2=
(-3 +/- </span><span>√225/2=
(-3 +/- 15)/2=
two options:
1) x= (-3+15)/2= 12/2=6
2) x= (-3-13)/2= -18/2= -9</span>
Answer:
244
Step-by-step explanation:
![544 - 300 = \\ 244](https://tex.z-dn.net/?f=544%20-%20300%20%3D%20%20%5C%5C%20244)
We are given :
Length = 4 + x
Width = x
Height = x² + 1
![Volume = Length * width * height](https://tex.z-dn.net/?f=%20Volume%20%3D%20Length%20%2A%20width%20%2A%20height%20)
Multiplying length , width and height,
![V = (4+x)(x)(x^{2} +1)](https://tex.z-dn.net/?f=%20V%20%3D%20%284%2Bx%29%28x%29%28x%5E%7B2%7D%20%2B1%29%20)
![=(x^{2} +4x )(x^{2} +1)](https://tex.z-dn.net/?f=%20%3D%28x%5E%7B2%7D%20%2B4x%20%29%28x%5E%7B2%7D%20%2B1%29%20)
Using foil method,
![=x^{4} +x^{2} +4x^{3} +4x](https://tex.z-dn.net/?f=%20%3Dx%5E%7B4%7D%20%2Bx%5E%7B2%7D%20%2B4x%5E%7B3%7D%20%2B4x%20%20)
So the highest power is 4 here.
Answer : The polynomial that represents the volume of Box 3 has a degree of 4.