Answer:
The other solution is 12.
Step-by-step explanation:
Break the solution into groups: (x^2+2x)+(-12x-24)
Factor out the x^2 from the first group to get x(x+2)
Factor out the -12 out of the second group to get -12(x-12)
Here we get (x-12)(x+2)
You can see solutions are -2 and 12.
Answer:
290
Step-by-step explanation:
f(x) = 
f(10) = 
= 3 * 100 - 10
= 300 - 10
= 290
Answer:
Step-by-step explanation:
<u>It looks like</u>
<u>Cross-multiplication:</u>
- 4m(m+7) = 9*18
- 2m(m+7) = 9*9
- 2m^2 + 14m = 81
- 2m^2 + 14m - 81 = 0
Here is the quadratic equation
Answer:
8/13
Step-by-step explanation:
<em>Step 1 : Write all the data</em>
Total number of students = 26
Number of girls in class = 10
Number of boys in class = 26-10 = 16
<em>Step 2 : Find the probability</em>
Probability of pulling out a boy's name = <u>number of boys in class</u>
Total number of students in class
= 16/26
<em>Simplify :</em>
16/26 = 8/13
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