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2 years ago

W Enter the value of x-21. (x - 21) 71

Mathematics

1 answer:

aleksandrvk [35]2 years ago

4 0

Step by step
(x - 21)(71)
=(x + - 21)(71)
=(x)(71) + (-21)(71)

=71x -1491

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Starting with the number 3, build a sequence of 5 numbers.

just olya [345]

Answer:

3, 6, 9, 12, 15

adding 3 each time

3, 9, 27, 81, 243

multiplying by 3 each time

Step-by-step explanation:

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3 years ago

F(x)=x^2-9x+2 evaluate f(-2)

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I believe is your answer
Because u plug in -2 to all x
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3 years ago

What is an Equivalent Expression of 3x+20?

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Step-by-step explanation:

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3 years ago

The chorus club is trying to raise money for new uniforms if the raised $2,486 last year and $3,578 this year,how much money did

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3 years ago

Read 2 more answers

Given the functions f(x) = 4x2 − 1, g(x) = x2 − 8x + 5, and h(x) = –3x2 − 12x + 1, rank them from least to greatest based on the

tangare [24]

Answer:

Option D) h(x), f(x), g(x)

Step-by-step explanation:

we know that

The axis of symmetry of a vertical parabola is equal to the x-coordinate of the vertex of the parabola

Part 1) we have

$f(x)=4x^{2} -1$

This is a vertical parabola open upward

The vertex is a minimum The vertex is the point (0,-1)

The x-coordinate of the vertex is 0

The axis of symmetry is x=0

Part 2) we have

$g(x)=x^{2}-8x+5$

This is a vertical parabola open upward

The vertex is a minimum

Convert the equation into vertex form

$g(x)-5=x^{2}-8x$

$g(x)-5+16=x^{2}-8x+16$

$g(x)+11=x^{2}-8x+16$

$g(x)+11=(x-4)^{2}$

$g(x)=(x-4)^{2}-11$

The vertex is the point (4,-11)

The x-coordinate of the vertex is 4

The axis of symmetry is x=4

Part 3) we have

$h(x)=-3x^{2}-12x+1$

This is a vertical parabola open downward

The vertex is a maximum

Convert the equation into vertex form

$h(x)-1=-3x^{2}-12x$

$h(x)-1=-3(x^{2}+4x)$

$h(x)-1-12=-3(x^{2}+4x+4)$

$h(x)-13=-3(x+2)^{2}$

$h(x)=-3(x+2)^{2}+13$

The vertex is the point (-2,13)

The x-coordinate of the vertex is -2

The axis of symmetry is x=-2

Part 4) Rank their axis of symmetry from least to greatest

1) h(x) -----> axis of symmetry -2

2) f(x) -----> axis of symmetry 0

3) g(x) -----> axis of symmetry 4

h(x),f(x),g(x)

7 0

3 years ago