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3 years ago

If f(x) = x1/2 and g(x)= 2x^3 - x1/2 - x, find f(x)-g(x)

Mathematics

1 answer:

shusha [124]3 years ago

8 0

Answer: D- f(x) - g(x) = -2 $x^{3}$ + 2 $x^{1/2}$

Step-by-step explanation:

f(x) - g(x) = ( $x^{1/2}$ - x) - (2 $x^{3}$ - $x^{1/2}$ - x)

f(x) - g(x) = $x^{1/2}$ - x - 2 $x^{3}$ + $x^{1/2}$ + x - distribute negative sign

f(x) - g(x) = -2 $x^{3}$ + 2 $x^{1/2}$ - combine like terms ( -x & +x cancel out)

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2 years ago

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Step-by-step explanation:

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3 years ago

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2 years ago

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The Mariners buy jerseys wholesale for $48 and sells for $468. What’s the markup rate?

AlekseyPX

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975%

Step-by-step explanation:

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3 years ago

Lydia graphed ΔXYZ at the coordinates X (0, −4), Y (2, −3), and Z (2, −6). She thinks ΔXYZ is a right triangle. Is Lydia's asser

katrin [286]

Answer:

Option (4)

Step-by-step explanation:

Vertices of the triangle are X(0, -4), Y(2, -3) and Z(2, -6).

Slope of XY ( $m_{1}$ ) = $\frac{y-y'}{x-x'}$

= $\frac{-3+4}{2-0}$

( $m_{1}$ ) = $\frac{1}{2}$

Similarly, slope of XZ ( $m_{2}$ ) = $\frac{-6+4}{2-0}$

( $m_{2}$ ) = (-1)

$m_{1}\times m_{2}=-\frac{1}{2}$

Which should be (-1) if XY and XZ are perpendicular to each other.

Now we can say that XY and XZ are not perpendicular.

Therefore, Lydia's assertion that ΔXYZ is a right triangle is not correct.

Option (4) will be the answer.

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2 years ago