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s2008m [1.1K]
3 years ago
15

APCAL AB!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0

Answer:

y=-10x+89

Step-by-step explanation:

Remember that the derivative tells us the slope of the tangent line at a given point.

So, we want to find the equation of the tangent line to f(x) at x=8.

We are given that f'(8) is -10.

In other words, the slope of the tangent line to f(x) at x=8 is -10.

We also know that f(8)=9. In other words, we have the point (8,9).

So, we can use the point-slope form to figure out the equation:

y-y_1=m(x-x_1)

Substitute -10 for m and let (8,9) be (x₁, y₁). So:

y-9=-10(x-8)

Distribute the -10:

y-9=-10x+80

Add 9 to both sides:

y=-10x+89

And we're done!

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Hi boys can you help me pls!!!!!!!
goblinko [34]

Answer: OPTION A.

Step-by-step explanation:

Given the following function:

h(x)=-\frac{1}{4}x^2+\frac{1}{2}x+\frac{1}{2}

You know that it represents the the height of the ball (in meters) when it is a distance "x" meters away from Rowan.

Since it is a Quadratic function its graph is parabola.

So, the maximum point of the graph modeling the height of the ball is the Vertex of the parabola.

You can find the x-coordinate of the Vertex with this formula:

x=\frac{-b}{2a}

In this case:

a=-\frac{1}{4}\\\\b=\frac{1}{2}

Then, substituting values, you get:

x=\frac{-\frac{1}{2}}{(2)(-\frac{1}{4}))}\\\\x=1

Finally, substitute the value of "x" into the function in order to get the y-coordinate of the Vertex:

h(1)=y=-\frac{1}{4}(1)^2+\frac{1}{2}(1)+\frac{1}{2}\\\\y=0.75

Therefore, you can conclude that:

<em> The maximum height of the ball is 0.75 of a meter, which occurs when it is approximately 1 meter away from Rowan.</em>

7 0
3 years ago
Evaluate the function: h(x)= √5x for x = 10. Write your answer in simplest form.
Gnom [1K]

Answer:

5\sqrt{2}

Step-by-step explanation:

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5 0
3 years ago
Which of the following will result in a rational number? Select all that apply.
Vladimir [108]

Answer:

B. 645−5√7

Correct me if iam wrong

8 0
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baherus [9]

Answer:

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Step-by-step explanation:

In a direct proportional relationship, as one object gets larger, the other object gets larger as well. This fits that definition, as when the amount of video games bought increases, so does the amount of money spent.

5 0
3 years ago
Geometry: Help this makes no sense I don’t think there’s enough info needa find x
umka2103 [35]
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8 0
2 years ago
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