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3 years ago

The function f(x)=(2/5)x is shown on the coordinate plane.

1 answer:

5 0

None of these answer choices are correct. As X decreases f of x decreases without bound as X increases f of x increases without bound look to be sure you copied the question right

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Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds a

kirill115 [55]

Answer:

12 feet per second.

Step-by-step explanation:

Please consider the complete question.

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds after she jumps for the bone can be represented $h(t)=-16t^2+20t$ .

What is Spot's average rate of ascent, in feet per second, from the time she jumps into the air to the time she catches the bone at t=1/2?

We will use average rate of change formula to solve our given problem.

$\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}$

$\text{Average rate of change}=\frac{h(\frac{1}{2})-h(0)}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot(\frac{1}{2})^2+20\cdot \frac{1}{2}-(-16\cdot(0)^2+20\cdot (0))}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot\frac{1}{4}+10-(0)}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{-4+10}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{6}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{2\cdot 6}{1}$

$\text{Average rate of change}=12$

Therefore, Spot's average rate of ascent is 12 feet per second.

3 0

3 years ago

Add. Enter a number only as your answer in the space provided<br><br><br> Please I really need help

Andreas93 [3]

Answer:0

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

If there were six dogs and five of them died how many will be life over. ( im not stupid im just bored)

Mariulka [41]

I believe it would be one lol

3 0

3 years ago

Read 2 more answers

What are the solutions of the equation ( X -25 )^ 2 equals 36

fgiga [73]

Answer:

x = 31, x = 19

Step-by-step explanation:

$(x-25)^2=36\\\sqrt{(x-25)^2}=\sqrt{36}\\x-25=6 or -6\\\\x-25=6\\x=31\\\\x-25=-6\\x=19$

5 0

2 years ago

What is the domain of the function y = 3 l n x graphed below? On a coordinate plane, a curve starts in quadrant 4 and then incre

VladimirAG [237]

Answer:

<h2>X greater-than 0</h2>

Step-by-step explanation:

The given function is

$y=3ln(x)$

Which is a logarithm function. An important characteristic of logarithms is that their domain cannot be negatice, because the logarithm of a negative number is undefined, the same happens for x=0.

Therefore, the domain of this function is all real numbers more than zero.

The image attached shows the graph of this function, there you can notice its domain restriction.

So, the right answer is the first choice: x greater than 0.

5 0

3 years ago