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3 years ago

Which expression is equivalent to this expression? x(2x + 3)

Mathematics

1 answer:

Valentin [98]3 years ago

7 0

Use distributive property: a(b + c) = ab + ac

x(2x + 3) = (x)(2x) + (x)(3) = 2x² + 3x

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Dwayne earns $11.45 per hour.Last week he worked 38 1/4 hours.how much did he earn last week?

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$2,000

Step-by-step explanation:

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Determine the vertex of the function f(x) = 3(x − 2)2 + 1.

anastassius [24]

The vertex point of the function f(x) = 3(x - 2)² + 1 is (2 , 1) ⇒ answer A

Step-by-step explanation:

Any quadratic function represented graphically by a parabola

1. If the coefficient of x² is positive, then the parabola open upward

and its vertex is a minimum point

2. If the coefficient of x² is negative, then the parabola open

downward and its vertex is a maximum point

3. The standard form of the quadratic function is: f(x) = ax² + bx + c

where a, b , c are constants

4. The vertex form of the quadratic function is: f(x) = a(x - h)² + k,

where h , k are the coordinates of its vertex point

∵ The function f(x) = 3(x - 2)² + 1

∵ The f(x) = a(x - h)² + k in the vertex form

∴ a = 3 , h = 2 , k = 1

∵ h , k are the coordinates of the vertex point

∴ The coordinates of the vertex point are (2 , 1)

The vertex point of the function f(x) = 3(x - 2)² + 1 is (2 , 1)

Learn more:

You can learn more about quadratic function in brainly.com/question/1357167

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3 years ago

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Step-by-step explanation:

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PLEASE, I NEED HELP! I will not accept nonsense answers, but I will give the person a BRAINLIEST if you get it correct.

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Answer: The last choice is correct. Edna can score 5 times as many points in the next level as in the level she has reached

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You can see the exponential pattern

For what it's worth, two views of the graph of the equation are attached

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3 years ago

WILL NAME brainliest

kolezko [41]

Answer:

$x=13$

Step-by-step explanation:

By the definition of an angle bisector, we have that $8x-23=5x+16$ .

We can add $23$ to both sides to get $8x=5x+39$ .

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