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Leto [7]
2 years ago
5

This is a function? O True O False

Mathematics
1 answer:
Oksanka [162]2 years ago
6 0

Answer:

true

Step-by-step explanation:im not really sure

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If a= -3 and b = -8 , find the value of 2a^2 +5|b|
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The answer is 76. 2(-3)=-6 -6(-6)=36. 5 times the absolute value of 8 is 40. 36+40=76
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Factorise 8x+12<br> ffffffffffdfffdfdfd
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andriy [413]
The answer is f(x)=x²+2x when evaluated with -3 gives you the value of 3

Let's check all functions.
1. The function f(x)=x²<span>+2x when evaluated with 3 gives you the value of 3:
  Evaluated with x means that</span> x = 3.
   f(3) = 3² + 2 * 3 = 9 + 6 = 15 
   15 ≠ 3, so, this is not correct.

2. f(x)=x²<span>-3x when evaulated with -3 give you the value of 3
    Evaluated with -3 means that x = -3.
    (f-3) = (-3)</span>² - 3 * (-3) = 9 + 9 = 18 
    18 ≠ 3, so, this is not correct.

3. f(x)=x²<span>+2x when evaluated with -3 gives you the value of 3
</span>    Evaluated with -3 means that x = -3.
    f(-3) = (-3)² + 2 * (-3) = 9 - 6 = 3
    3 = 3, so this is correct.

4. f(x)=x²-3x when evaluated with -3 gives you the value of 3
    Evaluated with 3 means that x = 3.
    f(3) = (3)² - 3 * 3 = 9 - 9 = 0
    0 ≠ 3, so this is not correct.
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3 years ago
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A major car manufacturer wants to test a new engine to determine if it meets new air pollution standards. The mean emission, μ,
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Answer:

Step-by-step explanation:

the appropriate null and alternative hypotheses's are something

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Which equation is a function of x?<br> O x=5<br> O x = {²+9<br> O x2 = 12 +16
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1st one , your welcome
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