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3 years ago

The graph of the function f is shown. f(0) = A) f(-1) B) f(2) C) f(3) D) f(4)

Mathematics

2 answers:

Nata [24]3 years ago

3 0

Answer:

D) $\displaystyle f(4)$

Step-by-step explanation:

Look at the y-intercept and you will see that its mirror is at f(−4), which is −5.

I am joyous to assist you anytime.

SashulF [63]3 years ago

3 0

Answer: D. f(4)

f(0) means x = 0

so when x = 0, y = -5

when x = 4, f(4) is also equal -5 (y = -5)

so f(0) = f(4) = -5

I hope this is correct and if it is I hope it helps.

I hope you have a great day and remember it doesn't matter what other people say or think about you, you are still and always will be strong, smart, and an amazing person. Have a wonderful day.

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In a study of the relationship between geographical mobility (number of times a person has changed residences) and number of fri

morpeh [17]

Answer:

Option A

Step-by-step explanation:

Given that in a study of the relationship between geographical mobility (number of times a person has changed residences) and number of friends, Pearson's r^2 is reported as .40.

r square, being the coefficient of determination explains the variablity of one variable due to the variability of the other. Here Mobility explains 40% variation in the number of friends is right answer.

Option B is wrong because r = ±6324, so cannot say positive or negative.

Similarly option c is wrong because we are unsure whether negative correlation. Option d is wrong since 16% is not right .

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3 years ago

PLS TRY TO ANSWER ASAP.

Harrizon [31]

Answer:

0.075 m/min

Explanation:

You need to use derivatives which is an advanced concept used in calculus.

1. Write the equation for the volume of the cone:

$V=\dfrac{1}{3}\pi r^2h$

2. Find the relation between the radius and the height:

r = diameter/2 = 5m/2 = 2.5m

h = 5.2m

h/r =5.2 / 2.5 = 2.08

3. Filling the tank:

Call y the height of water and x the horizontal distance from the axis of symmetry of the cone to the wall for the surface of water, when the cone is being filled.

The ratio x/y is the same r/h

x/y=r/h

y = x . h / r

The volume of water inside the cone is:

$V=\dfrac{1}{3}\pi x^2y$

$V=\dfrac{1}{3}\pi x^2(2.08)\cdot x\\\\\\V=\dfrac{2.08}{3}\pi x^3$

4. Find the derivative of the volume of water with respect to time:

$\dfrac{dV}{dt}=2.08\pi x^2\dfrac{dx}{dt}$

5. Find x² when the volume of water is 8π m³:

$V=\dfrac{2.08}{3}\pi x^3\\\\\\8\pi=\dfrac{2.08}{3}\pi x^3\\\\\\ 11.53846=x^3\\ \\ \\ x=2.25969\\ \\ \\ x^2=5.1062$ m²

6. Solve for dx/dt:

$1.2m^3/min=2.08\pi(5.1062m^2)\dfrac{dx}{dt}$

$\dfrac{dx}{dt}=0.03596m/min$

7. Find dh/dt:

From y/x = h/r = 2.08:

$y=2.08x\\\\\\\dfrac{dy}{dx}=2.08\dfrac{dx}{dt}\\\\\\\dfrac{dy}{dt}=2.08(0.035964m/min)=0.0748m/min\approx0.075m/min$

That is the rate at which the water level is rising when there is 8π m³ of water.

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3 years ago

On Monday Greg walks the entire length of a trail that is 3 1/2 miles long on Tuesday he walks the entire length of a trail that

-Dominant- [34]

Answer:

Step-by-step explanation:

3.5+4.6+2.5 = 10.6

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The distance between the points (−5, 1) and (2, −1).

devlian [24]

Here u go :) hope it helps

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A student's cost for last semester at her community college was $2800. She spent $308 of that on books. What percent of last sem

Rudik [331]

You want to divide the cost of the books by the total costs.

308/2800 = 0.11

You then need to convert 0.11 to a percent: 0.11 = 11%

Therefore, 11% of her costs last semester were spent on books.

That’s too much!

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3 years ago