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SVETLANKA909090 [29]
3 years ago
12

Which of these relations are functions? Select all that apply​

Mathematics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

TOP 2, and bottom right

Step-by-step explanation:

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Linear equations substitution
Nataly_w [17]
For example, y=x+4 and y=5x+2.
That would mean that x+4=y=5x+2.
Simplify it to x+4=5x+2.
x=5x-2
-4x=-2
x=1/2.
Now, plug x into one of the equations.
y=x+4
y=1/2+4
y=9/2.
Therefore, the POI is (1/2,9/2).
6 0
3 years ago
Need Help again ASAP!<br><br> And also, do you know da wey?
Free_Kalibri [48]
The answer is A and B
Because if you look closely it says trucks to SUV's 
It says truck first so the trucks would be 7 and the SUV's would be 2


4 0
3 years ago
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Prove : (sec θ - tan θ )^2 = 1 - sin θ /1+sin θ
labwork [276]
(sec x - tan x)^2 \\  \\ = sec^2x - 2 sec x tan x + tan^2 x \\  \\ =(1+tan^2 x) - 2 sec x tan x +tan^2 x \\  \\ =1 - 2 sec x tan x + 2 tan^2 x \\  \\ = 1 - 2tan x(sec x - tan x) \\  \\ =1 - \frac{2 sin x}{cos x} (\frac{1-sin x}{cos x}) \\  \\ = 1 - \frac{2 sin x (1-sin x)}{cos^2 x} \\  \\ =1 - \frac{2 sin x (1-sin x)}{1-sin^2 x} \\  \\ =1 - \frac{2 sin x (1-sin x)}{(1-sin x)(1+sin x)} \\  \\ =1-\frac{2 sin x}{1+sin x}
3 0
2 years ago
1.<br> (k — 7)(k – 1) =<br> 0
LenaWriter [7]

Answer:

K = 7 or 1

Step-by-step explanation:

(7-7)(7-1)=0

(1-7)(1-1)=0

3 0
2 years ago
Lesson 12 Ratios of Fractions and Their Unit Rates
slava [35]

Answer:

tttt5556689

Step-by-step explanation:

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