3 years ago

∀ set A:(A⊆A)Select one:TrueFalse

Mathematics

1 answer:

SashulF [63]3 years ago

4 0

Answer:

True

Step-by-step explanation:

You're claiming that every set is a subset of itself.

That's trivially true, because

$A\subseteq A$

requires that every element of A is also an element of A, which is tautologically true.

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Evaluate the function found in the previous step at X =-3

babunello [35]

$x-5y=-4x-2y$

In order to evaluate the given function at x = -3, simply replace "x" in the function with -3 and solve.

$-3-5y=-4(-3)-2y$

Multiply -4 and -3 in the function above.

$-3-5y=12-2y$

Add 3 on both sides of the equation.

$-3-5y+3=12-2y+3$ $-5y=15-2y$

Add 2y on both sides of the equation.

$-5y+2y=15-2y+2y$ $-3y=15$

Divide both sides of the equation by -3.

$\frac{-3y}{-3}=\frac{15}{-3}$ $y=-5$

Therefore, at x = -3, the value of y = -5. Hence, f(-3) = -5.

Answer:

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Which expression can be used to determine 50% of 42? 42-2 ,42÷2,42÷10,42-10

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Answer:

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Step-by-step explanation:

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∀ set A:(A⊆A)Select one:TrueFalse​

∀ set A:(A⊆A)Select one:TrueFalse