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Paraphin [41]
3 years ago
6

Which of the following relations is a function?

Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

D, sense there are no repeating numbers in the input (Y)

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For the function F defined by F(x)=x2−2x+4, find F(−2).
Kruka [31]

Answer:

12

Step-by-step explanation:

x^2-2x+4  replace -2 for x

-2^2-2(-2)+4

4+4+4

12

4 0
3 years ago
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Plssss it’s due in 5 min answer plsss
Nesterboy [21]
Y=11x+2 should be you answer for the slope
8 0
3 years ago
Y=x^2-3x-6<br><br>x+y=2<br><br><br>Help 50 Points!!! Show Work
Alborosie
X + y = 2 —> y = 2 - x
insert to first equation
2-x=x^2-3x-6
x^2 - 3x - 6 - 2 + x = 0
x^2 - 2x - 8 = 0
(x-4)(x+2) = 0
x = 4 or x = -2
5 0
3 years ago
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Select all of the expression that are equivalent to 4(3x + 14y)
ASHA 777 [7]

Answer:

12x + 64y

Step-by-step explanation:

This is the distributed property. You need to apply it according to this question

8 0
3 years ago
There is a clown's face on the top of a spinner. The tip of his hat rotates to (−2, 5) during one spin. What is the cosine value
uranmaximum [27]
Remark
The point value is (-2,5) So we know the two sides. We need the hypotenuse. We should notice that the x value is minus (-2) and value is y value is plus (5). That means we are in quad 2. Be careful how you read that. (-2,5) is a point. It is not a tangent.

Step One 
Find the hypotenuse.

a = - 2
b = 5
c =  ??

c^2 = a^2 + b^2
c^2 = (-2)^2 + 5^2
c^2 = 4 + 25
c^2 = 29               Take the square root of both sides.
sqrt(c^2) = sqrt(29)
c = sqrt(29)

Step Two
Find the Cosine of the angle.
Cosine(theta) = adjacent / hypotenuse
Cosine(theta) = -2 / sqrt(29)  <<<<<<< Answer

Again, watch out for what you are given.
6 0
3 years ago
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