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aleksandrvk [35]
3 years ago
14

The table represents the function f(x). What is f(3)?

Mathematics
1 answer:
Minchanka [31]3 years ago
5 0

Answer:

f(3) = 9

Step-by-step explanation:

In the given figure,

when x=3,

f(x)=9

substituting x=3 in f(x),

=> f(3)=9

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velikii [3]
You can consider the tree perpendicular to its shadow, therefore you get a triangle rectangle of which you know the two legs and you need to find the angle between the shadow and the hypothenuse, opposite to the tree.

In this case, the angle α can be easily found with trigonometry:
tan α = (opposite side / adjacent side) 

Therefore:
α = tan⁻¹ (tree / shadow) = tan⁻¹ (10 / 14) = 35°

NOTE:
tan⁻¹ is sometimes found written as arctan.


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3 years ago
The probability of winning a game is 15%. If you play 20 times, how many times should you expect to win?
alex41 [277]
You should expect to win at least 3 times.
Hope this helps!
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3 years ago
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Will the product of - 3x ^ 3 + 2x - 4 and x ^ 3 + x - 2 be the same as the product of x ^ 3 + x - 2 2 and - 3x ^ 3 + 2x - 4 Expl
Advocard [28]

Answer:s

Step-by-step explanation:

4 0
3 years ago
A company sells widgets. The amount of profit, y, made by the company, is
denis23 [38]

Answer:

449.25 units

Step-by-step explanation:

The amount of profit, y, made by the company, is  related to the selling price of each widget, x, by the given equation as follows :

y=-x^2+51x-201 ...(1)

For maximum profit,

Put dy/dx = 0So,

\dfrac{d}{dx}(-x^2+51x-201)=0\\\\-2x+51=0\\\\x=\dfrac{51}{2}\\\\x=25.5

Now put x = 25.5 in equation (1).

y=-(25.5)^2+51(25.5)-201\\\\y=\$ 449.25

so, the required answer is 449.25 units.

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3 years ago
A washer and a dryer cost $1020.00 combined. The washer costs $70.00 more than the dryer. What is the cost of the dryer?
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Answer:475 and 545

Step-by-step explanation:

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