4x² + 2x - 30 = 0
<span>
factor out the GCF:
</span>2(2x² + x - 15) = 0
<span>
factor the trinomial completely:
2x</span>² + x - 15 = 0
2x² + 6x - 5x - 15 = 0
2x(x + 3) - 5(x + 3) = 0
(2x - 5)(x + 3) = 0
<span>use the zero product property and set each factor equal to zero and solve:
2x - 5 = 0 or x + 3 = 0
2x = 5 x = -3
x = 2.5
</span><span>The roots of the function are x=-3, x=2.5</span>
Top row: 0, 45, 90, 135, 180, 225, 270, 315, 360, 405, 450, 495, 540
Bottom row: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Answer:
I need the whole question..
Step-by-step explanation:
Have a nice day!
We have to write
![2^2 =4](https://tex.z-dn.net/?f=%202%5E2%20%3D4%20)
In log form
To convert exponential equation to log equation, we have to use the following rule![If \ a^b = c, \ then \ b=log_{a} c](https://tex.z-dn.net/?f=%20If%20%5C%20a%5Eb%20%3D%20c%2C%20%5C%20then%20%5C%20b%3Dlog_%7Ba%7D%20c%20)
So we will get
![If \ 2^2 =4, \ then \ 2 = log_{2} 4](https://tex.z-dn.net/?f=%20If%20%5C%202%5E2%20%3D4%2C%20%5C%20then%20%5C%202%20%3D%20log_%7B2%7D%204%20)
or
![log_{2}4=2](https://tex.z-dn.net/?f=%20log_%7B2%7D4%3D2%20)
And that's the required log form .
Answer:
60 Ways
Step-by-step explanation:
We have 5 cars and have to choose 3 cars to finish the race first.
5 options for 1st car
4 options for 2nd car
3 options for 3rd car
5 · 4 · 3
Hope that helps, tell me if further explanation is needed