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Pavlova-9 [17]
3 years ago
9

Can anyone help me on these 2 questions

Mathematics
2 answers:
erica [24]3 years ago
6 0

Answer:

Nope lol

Step-by-step explanation:

horsena [70]3 years ago
3 0
A) So to find f(2) this means x=2, and you’re looking for y. On the graph, where x=2, y=3.
This means f(2)=3

b) To find f(x)=0, find where y=0. y=0 at x=5, and y=0 at x=-5.

Hope this makes sense!! If you have any more questions, let me know on the comments.

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dimaraw [331]

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C

Step-by-step explanation:

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7 0
3 years ago
The sum of two numbers is 122. The difference of the first number and twice the second number is 23. Find the two numbers.
Elza [17]

Answer:

One is 89 , the other is 33.

Step-by-step explanation:

Set up a system of 2 equations:

x + y = 122

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8 0
2 years ago
Read 2 more answers
Determine two pairs of polar coordinates for the point (4, -4) with 0° ≤ θ &lt; 360°.
umka2103 [35]
A polar coordinate is that which can be written as (r, θ) where r is the radius and θ is the angle. 

The radius, r, is also the hypotenuse of the right triangle that can be formed. Hence, it can be calculated through the equation,
    
                   r² = x² + y²
If we are to simplify this for the r alone, we have,
                     r = sqrt (x² + y²)

Substituting the known values,
               r = sqrt ((4)² + (-4)²) = 4√2

The x and y can be related through the trigonometric function, tangent. 
      tan θ = y/x
To solve for θ
   θ = tan⁻¹(y/x) = tan⁻¹(-4/4) = -45° = 315°

Hence, the polar coordinate is <em>(4√2, 315°)</em>
5 0
3 years ago
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