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2 years ago

Does this table represent a function? Why or why not? HELP VERY URGENT!!!!!!!!!!!!!!

Mathematics

1 answer:

Digiron [165]2 years ago

6 0

Answer:

vcyhiigxzt7f70pkbonkoonuvf6yixyi8i00ibih8j8j90

Step-by-step explanation:

bibih9

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If x is a positive integer, then x is _____ negative.

faltersainse [42]

A. never

because you are limiting x from 0 to infinite, and all of these are positive.

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2 years ago

Solve (x + 4)2 – 3(x + 4) – 3 = 0 using substitution. u = Select the solution(s) of the original equation.

bezimeni [28]

Answer:

$\dfrac{-5-\sqrt{21}}{2},\ \dfrac{-5+\sqrt{21}}{2}$

Step-by-step explanation:

For the equation $(x+4)^2-3(x+4)-3=0$ use the substitution $u=x+4.$ Then the equation will take look

$u^2-3u-3=0.$

Solve this quadratic equation:

$D=(-3)^2-4\cdot 1\cdot (-3)=9+12=21,\\ \\u_{1,2}=\dfrac{-(-3)\pm \sqrt{21}}{2}=\dfrac{3\pm\sqrt{21}}{2}.$

Thus,

$x+4=\dfrac{3-\sqrt{21}}{2}\text{ or }x+4=\dfrac{3+\sqrt{21}}{2},\\ \\x_1=\dfrac{3-\sqrt{21}}{2}-4=\dfrac{-5-\sqrt{21}}{2}\text{ or }x_2=\dfrac{3+\sqrt{21}}{2}-4=\dfrac{-5+\sqrt{21}}{2}.$

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3 years ago

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A circle with its dimensions, in meters (m), is shown.

vesna_86 [32]

Answer:

84.78

Step-by-step explanation:

also if you dont mind giving me brainliest im trying to rank up, im 1 away. only if u dont mind

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3 years ago

Compare the volumes. write <,> or =.

Otrada [13]

So the 1st cube is 60 ft cubed.

2nd cube is 60 ft cubed.

so they are going to be the same. hope that helped

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3 years ago

If you get it right ill give you brainlist

Shkiper50 [21]

Answer:

non living are computer baseball phone bear living are tree human fern and bacteria the rest i.d.k

Step-by-step explanation:

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3 years ago

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