A = L * W
L = 3x + 5
W = x - 2
A = (3x + 5)(x - 2)
A = 3x(x - 2) + 5(x - 2)
A = 3x^2 - 6x + 5x - 10
A = 3x^2 - x - 10 <====
Answer:
True statements are:
C. The water level decreased by \abs{-12} inches.
E. The water level experienced a change of 12 inches.
Step-by-step explanation:
A change in the water level of a swimming pool is recorded a -12 inches.
Now, from the above statements, we have to choose options statements that are true.
A. The water level increased by 12 inches. This is false.
B. The water level increased by \abs{-12} inches. This is also false.
C. The water level decreased by \abs{-12} inches. This is a true statement.
D. The water level has a height of -12 inches. This is again a false statement.
E. The water level experienced a change of 12 inches. This is a true statement. (Answer)
Answer: 5, 15
Step-by-step explanation:
Given
Mr. Ramirez purchased 20 concert tickets
The total price of 20 tickets is
Concert ticket costs for adults and for children
suppose there are x adults and y children
Solving (i) and (ii) we get
So, there are 5 adults and 15 children
You can use some graph tools to draw three regressions for given data. On the attached diagram you can see:
- linear function - black line;
- quadratic function - red curve;
- exponential function - blue curve.
Since
you can conclude that for the given data the best fit is exponential function with rule
Answer: correct choice is C.
<span>30 square units.
The area of a parallelogram is
A= bh
where
A = area
b = base
h = height
Any side of a parallelogram can be used as the base. The height of a parallelogram is a perpendicular line from the base to the opposite side of the parallelogram. If needed, you can replace the opposite line segment with a line that overlays the line segment and continues to infinity in both directions.
Given the 4 points, the line segments (4,1) to (10,1) and (8,-4) to (2,-4) are the most interesting. Both of those lines have a slope of 0, which makes finding the distance between those two lines trivial. The height is simply the difference in their y-coordinate values. So
h = 1 - (-4) = 1 + 4 = 5
And the length of the base is the difference between their x-coordinates. (You can use either line for the base). So
b = 10 - 4 = 6
So the area is
A = bh
A = 6 * 5
A = 30</span>