The answer is <span>16x2 − 8x + 1
</span>
To be a perfect square trinomial, the rule must be used:
(a - b)² = a² - 2ab + b²
Let's check all choices
A. a = 7x, b = 4
(7x - 4)² = 49x² - 56x + 16
B. a = 2a, b = 5
(2a - 5)² = 4a² - 20a + 25
C. a = 5b, b = √10
(5b - √10)² = 25b² - 10√10 b + 10
D. a = 4x, b = 1
(4x - 1)² = 16x² - 8x + 1
CORRECT
Answer:
$469887
Step-by-step explanation:
you should use compound interest formula which is
A=P(1+r/100) ^t
A = 242800 ( 1 + 0.045 ) ^ 15
when you punch this into a calculator you will get 469886.5771.....
when you round it off to a whole number the answer is $469887
Answer:
Step-by-step explanation:
Two things to note;
1. Since there's only one 2 or hearts and one 3 of clubs
2. The first card is replaced after it's drawn
Probability of 2 of hearts = 1/52
Probability of 3 of clubs = 1/52
They both have the same probability of being drawn.
Answer:
12. 1 second, 35 ft; 2 seconds, 32 ft
13. (t, y) = (1.4 seconds, 37.6 feet)
14. 37.6 ft; the vertex is the highest point
Step-by-step explanation:
12. You have properly answered question 12.
After 1 second, the height is 35 feet; after 2 seconds, it is 32 feet.
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13. My method of choice is to plot the graph on a graphing calculator and let it show me the coordinates of the vertex when I highlight that point. (See attached.) The vertex is ...
(t, y) = (1.4, 37.6)
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14. The graph is a graph of height when the object is launched with a vertical velocity of 45 ft/s. So, the maximum of the graph will correspond to the maximum height of the object. The vertex is that maximum point, and its y-coordinate is that maximum height.
The maximum height is 37.6 feet.
Answer:
I think it is
Step-by-step explanation:
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