Answer:
The mean is all the numbers added together divided by the number of numbers. Greater the numbers the greater the mean. Since the goal of the game is to have as few centimeters away as possible the lowest number (107 or Robin) is winning
Step-by-step explanation:
9514 1404 393
Answer:
- (f×g)(x) = 2x^2 +2x
- (f×g)(x) = 6y^2 -11y -35
Step-by-step explanation:
The distributive property applies.
1. (fg)(x) = f(x)·g(x) = (2x)·(x +1)
(f×g)(x) = 2x^2 +2x
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2. (fg)(x) = f(x)·g(x) = (2y -7)·(3y +5) = 2y(3y +5) -7(3y +5)
(f×g)(x) = 6y^2 -11y -35
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<em>Additional comment</em>
Please note in problem 2 that the function argument is x and the variable in the given expressions is y. This means the function value is exactly and only <em>6y^2 -11y -35 for any value of x</em>. It does not change when x changes. (We suspect a typo.)
Problem 15
The general format for these types of problems is
A/B = C/D
One way to set things up is to notice how the horizontal sides are 15 and 6 for the large and small triangles respectively. So A/B = 15/6
At the same time, we can say C/D = 20/x since the longer diagonal is 20 and the shorter diagonal is x (notice how we divide in the same order of long over short)
A/B = C/D updates to 15/6 = 20/x
Cross multiply to solve for x
15/6 = 20/x
15*x = 6*20
15x = 120
x = 120/15
x = 8
<h3>Answer: x = 8</h3>
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Problem 16
A = Long horizontal side = x
B = Short horizontal side = 24
A/B = x/24
C = long diagonal side of larger triangle = 20+12 = 32
D = short diagonal side of smaller triangle = 20
C/D = 32/20
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A/B = C/D
x/24 = 32/20
20x = 24*32
20x = 768
x = 768/20
x = 38.4
<h3>Answer: x = 38.4</h3>
side notes:
- 38.4 = 38 & 2/5 as a mixed number
- 38.4 = 192/5 as an improper fraction
Answer:
y = -5x + 9
Step-by-step explanation:
-850 feet,
-1200+800-450,
Assuming that it started at 0