Answer: 2(12+8) +3
Step-by-step explanation: In the morning they made 12 + 8 airplanes = (12 + 8)
In the afternoon they doubled the number that they made in the morning = 2 (12 + 8)
Finally, you would add 3 to this for the ones that her brother made = 2 (12 + 8) + 3
10x - 3 = 5x + 2
5x = 5
x = 1
RT = ST = 10(1) - 3 = 7
answer
x = 1
RT = 7
ST = 7
Answer:
x= 14, –12
Step-by-step explanation:
The given question might make you believe that it's difficult due to it's frightening digit (168) but in fact in you use the following methods, it's going to be a pieces of cake.
the delta formula:
Δ=b²–4ac===> (–2)²–4(1)(–168)=676
well this can be on of the methods and the other one is
The full square formula:
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now what you need to do is to put this on both side of the equation (½b)²=1