1. Number that adds up to -12 and multiplied by the same # that gives u -13. Set it up like this because both are negative so, u need 1 negative and 1 positive.
(x-13)(x+1)
2. Same rule applies. GCF
8y(4y+1)
3. (x+3)(x-3)
Answer:
He must start his journey by 11 AM
Step-by-step explanation:
Speed of Toshi while walking up the mountains is 1.5 kilometres per hour
Speed of Toshi while walking down the mountains = 2 * Speed of Toshi while walking up the mountains = 3 kilometres per hour
Time taken to travel 9 Km in the upward direction by Toshi = 9 Km/1.5 kilometres per hour = 6 hours
Time taken to travel 9 Km in the downward direction by Toshi = 9 Km/3 kilometres per hour = 3 hours
He will take total 6 hours + 3 hours = 9 hours to travel 18 Km distance
Thus, He must start his journey by 11 AM
To solve this problem, let us first define what
probability means in this case. It would be:
Probability = (number of colors to choose from) / (total
number of colors)
There are a total of 5 colors on the spinner. The number
of colors to choose from spins 1 to 8 would be 5 out of 5, while for the last
spin 9 the number of colors to choose from would only be brown so that would be
1 out of 5. The total probability would be the product of the probability of
each spins, therefore:
<span>Probability = 1st spin * 2nd spin * 3rd
spin * 4th spin * 5th spin * 6th spin * 7th
spin * 8th spin * 9th spin</span>
Probability = (5/5) *(5/5) *(5/5) *(5/5) *(5/5) *(5/5) *(5/5)
*(5/5) * (1/5)
Probability = 0.2
<span>There is a 20% chance to get brown on the last spin.</span>
Answer:
2/(7a) < x < 7
Step-by-step explanation:
The product of roots of ax² +bx +c is c/a. In this case, that means the second root of the equation is ...
... 2/(7a)
Since a < 0, the parabola opens downward and 2/(7a) < 0. The quadratic function will be positive between the two roots, on the interval ...
... 2/(7a) < x < 7
