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2 years ago

Which of the sets of ordered pairs represents a function? (1 point)

Mathematics

1 answer:

Lyrx [107]2 years ago

8 0

Answer:

Only B

Step-by-step explanation:

A has 2 pairs with the x as the number 2, so they are not functions.

B has all independent pairs with their own numbers

So only B is the correct answer.

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

$\frac{dh}{dt} =0$

Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

$\frac{dh}{dt}=-16t+40$

For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

$\Rightarrow 16t=40$

$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0

3 years ago

Any help with this plzzz?????

Harrizon [31]

1.
a.11/12=less than one

b. 77/72= greater than one

c.23/60= less than one

d. 31/56= less than one

2. <

8 0

3 years ago

Someone plz help me with this

Phoenix [80]

Answer:

$5y^{6}\sqrt{2}$

Step-by-step explanation:

We want to simplify:

$\sqrt{50y^{12}}$

We rewrite as:

$\sqrt{2\times25 \times (y^{6})^2}$

We split the radical sign to obtain:

$\sqrt{25} \times \sqrt{(y^{6})^2} \times \sqrt{2}$

Simplify the square root for the perfect squares to get:

$5y^{6}\sqrt{2}$

Therefore the simplified form is: $5y^{6}\sqrt{2}$

8 0

2 years ago

Rectilinear motion is A. non existent B. motion in sphere C. motion along a line.

balandron [24]

Answer: The answer is: C.

~ i hope this is correct, if not im sorry, have a gr8 day my friend!~

Step-by-step explanation:

7 0

3 years ago

Help pls. Express your answer as a fraction in<br> simplest form.

Strike441 [17]

Your answer is D since 53 is the total amount of bottle caps and only 2 of them are marked. so that will leave you with a 2/53 chance of getting the prize.

6 0

2 years ago