2x^2 + 14x = -12
Step 1: Subtract -12 from both sides.
2x^2 + 14x - (-12) = -12 - (-12)
2x^2 + 14x + 12 = 0
Step 2: Factor the left side of the equation.
2(x + 1)(x + 6) = 0
Step 3: Set Factors equal to 0.
x + 1 = 0 or x + 6 = 0
x = -1 or x = -6
Answer:
x = -1 or x = -6
Hope this helps. : )
To answer the question raised in this case we can make a rule of three, knowing that 100% of adults surveyed equals 1013. Then we have:
1013 ---------> 100%
x ----------------> 47%
Where "x" represents the number of adults corresponding to 47%.
Thus rounding we have that 476 adults think that cell phones are quite annoying.
We need to round because we are talking about people and becauseof that we must round to the nearest integer.
ANswer:
476 adults
Let,
the pay for 40 hours be "x",
Since the weekly pay is directly proportional to the number of hours she works at the record store,
using ratio and proportion, we can write, Using cross multiplication,
So, the amount of pay for 40 hours of work is $290
Okay. So I find it easiest to calculate the full area as if the shape was a rectangle, then subtracting open space. We already know that length is 100, so now we just need to find width. 50 + 25 + 50 + 25 + 50 = 200. 200 x 100 =20,000. So now we just need to find the areas of open space and subtract. Both spaces have a length of 75 and a width of 25. 25 x 75 = 1875. There were 2 spaces, and 1875 x 2 = 3,750. 20,000 - 3,750 = 16,250.
The area of the figure is 16,250 feet.
Answer:
increase by 100%
Step-by-step explanation:
100% of 0.5 is 0.5 therefore 0.5+0.5=1