Answer:
Step-by-step explanation:
A quick way to divide by 0.5 or ½ is to double the number (or multiply number by 2). The reason for this is that two halves go into a whole.
Answer:
30
Step-by-step explanation:
538 = 540
509 = 510
40 - 10 = 30
Answer:
$37.85
Step-by-step explanation:
Here the price is $34.98 and there's an 8.2% tax on that. To obtain the after-tax amount due, multiply $34.98 by (1 + 0.082), or 1.082, obtaining:
1.082($34.98) = $37.85 (rounded to the nearest cent)
Answer:
- f−1=log3x. Explanation: y=3x ⇒log3y=log3(3x) (logarithms of both side are equal) ⇒x=log3y ⇒f−1=log3x.Step-by-step explanation:
Answer:
![y = -\frac{3}{2}x](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B3%7D%7B2%7Dx)
Step-by-step explanation:
Given
Passes through: (-4,6)
Slope: -3/2
Required
The equation and graph
The equation is calculated as:
![y = m(x - x_1) + y_1](https://tex.z-dn.net/?f=y%20%3D%20m%28x%20-%20x_1%29%20%2B%20y_1)
Where
![m = -\frac{3}{2}](https://tex.z-dn.net/?f=m%20%3D%20-%5Cfrac%7B3%7D%7B2%7D)
![(x_1,y_1) = (-4,6)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%20%3D%20%28-4%2C6%29)
So, we have:
![y = -\frac{3}{2}(x --4) + 6](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B3%7D%7B2%7D%28x%20--4%29%20%2B%206)
![y = -\frac{3}{2}(x +4) + 6](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B3%7D%7B2%7D%28x%20%2B4%29%20%2B%206)
Open bracket
![y = -\frac{3}{2}x -6 + 6](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B3%7D%7B2%7Dx%20-6%20%2B%206)
![y = -\frac{3}{2}x](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B3%7D%7B2%7Dx)
See attachment for graph