Answer:
Step-by-step explanation: she can have four people go and have the last 4 dollers can go in to her buying the lanes
Answer:
x^3-x^2-17x+12
Step-by-step explanation:
(x+4)(x^2-5x+3)
x^3-5x^2+3x+4x^2-20x+12
x^3-5x^2+4x^2+3x-20x+12
x^3-x^2-17x+12
Answer:
B
Step-by-step explanation:
$5.20 is about $5.00, 21 is about 20, so $5.00 * 20 *4 = $400.
Checking this: $5.20 * 21 * 4 = $436.80
Answer:
C. ![\frac{3}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B2%7D%20)
Step-by-step explanation:
To find the value f b, we need to compare the exponents.
The given exponential equation is:
![( {x}^{2} {y}^{3} )^{3} = ( {x} {y}^{a} )^{b}](https://tex.z-dn.net/?f=%28%20%7Bx%7D%5E%7B2%7D%20%20%7By%7D%5E%7B3%7D%20%29%5E%7B3%7D%20%20%3D%20%28%20%7Bx%7D%20%20%7By%7D%5E%7Ba%7D%20%29%5E%7Bb%7D)
Recall and apply the following rule of exponents.
![( {x}^{m} )^{n} = {x}^{mn}](https://tex.z-dn.net/?f=%20%28%20%7Bx%7D%5E%7Bm%7D%20%20%29%5E%7Bn%7D%20%20%3D%20%7Bx%7D%5E%7Bmn%7D)
We apply this rule on both sides to get:
![{x}^{2 \times 3} {y}^{3 \times 3} = {x}^{b} {y}^{ab}](https://tex.z-dn.net/?f=%7Bx%7D%5E%7B2%20%5Ctimes%203%7D%20%20%7By%7D%5E%7B3%20%5Ctimes%203%7D%20%3D%20%20%20%7Bx%7D%5E%7Bb%7D%20%20%7By%7D%5E%7Bab%7D)
Simplify the exponents on the left.
![{x}^{6} {y}^{9} = {x}^{b} {y}^{ab}](https://tex.z-dn.net/?f=%7Bx%7D%5E%7B6%7D%20%20%7By%7D%5E%7B9%7D%20%3D%20%20%20%7Bx%7D%5E%7Bb%7D%20%20%7By%7D%5E%7Bab%7D)
Comparing exponents of the same variables on both sides,
![b = 6 \: and \:\: ab = 9](https://tex.z-dn.net/?f=b%20%3D%206%20%5C%3A%20and%20%5C%3A%5C%3A%20ab%20%3D%209)
![\implies \: 6b = 9](https://tex.z-dn.net/?f=%20%5Cimplies%20%5C%3A%206b%20%3D%209)
Divide both sides by 6.
![b = \frac{9}{6}](https://tex.z-dn.net/?f=b%20%3D%20%20%5Cfrac%7B9%7D%7B6%7D%20)
![b = \frac{3}{2}](https://tex.z-dn.net/?f=b%20%3D%20%20%5Cfrac%7B3%7D%7B2%7D%20)
Answer:
i cant see it
Step-by-step explanation: