Answer:
x - intercepts: -1, -7
Solutions: [is the x-intercepts] -1,-7
Factors: (x+1)(x+7)
Vertex: -4, -9
Axis of symmetry: x = -4
Step-by-step explanation:
Answer:
4 blue dogs
Step-by-step explanation:
Since there are 6 black dogs and 5 white dogs, there is 11 black and white dogs. There is 15 dogs in total, so you subtract 11 from 15, and that is 4. So, 4 dogs are blue.
The new mixture has a total volume of 5 L + 9 L = 14 L.
70% of the 5 L alcohol solution is alcohol, so that it contributed 3.5 L of alcohol to the mixture. The pure water contributed no alcohol. So in the mixture, the concentration of alcohol is
3.5 L / 14 L = 0.25, or 25%
The answer is that x equals 15
Answer:
The correct anwser is 2x+5<4
Step-by-step explanation:
