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3 years ago

Which statement BEST models the equation

Mathematics

1 answer:

Alex777 [14]3 years ago

8 0

Answer:

b A train backed up 7 feet and then moved

forward 7 feet.

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Which of the following equations is not exponential? a)y = 1x b)y = (1/2)x c)y = -2x

Y_Kistochka [10]

I'm not sure but y=1x

3 0

3 years ago

PLEASE DIE TODAY I NEED MY GRADE UP it is not 12.5 this is my last attempt I think 15 points

Volgvan

Answer:

25%

Step-by-step explanation:

1/2 ×1/2

=1/4

=0.25

which is 25%

7 0

3 years ago

Can someone solve this for me?

pickupchik [31]

9514 1404 393

Answer:

y = 0
A all real numbers
E y > 0
infinity

Step-by-step explanation:

1. The horizontal asymptote is the y-value the function approaches, but does not reach. That value is y = 0. This equation is the equation of that asymptote.

2. The domain is the horizontal extent of the graph. It covers "all real numbers." (A)

3. The range is the vertical extent of the graph. As we said in part 1, the value y = 0 is never reached, so the vertical extent (range) is y > 0 (E).

4. The graph extends upward indefinitely as x extends to the left indefinitely. That is, y → infinity.

7 0

3 years ago

John is standing on a set of bleachers and throws a baseball into the air. the baseball lands on the field. the height of the ba

Aleonysh [2.5K]

Answer:

2 m/s

Step-by-step explanation:

Given the graph of the baseball thrown into air.

John throws the baseball into the air from a given height and then the baseball reaches a maximum height and then comes back to ground.

The height of the baseball (in metres) is modeled by the function graph with respect to time.

To find:

The average rate of change of height of the ball from the point the ball is thrown to the maximum height.

Solution:

Here, the average rate of change can be found by dividing the distance between the two points with the change in time.

The starting time is 0 seconds.

The starting height is 3 metres.

The ending time is 2 seconds i.e. at which the ball reaches the maximum height.

The height is 7 metres.

Therefore, the average rate of change is:

$\dfrac{\text{Change in height}}{\text{Change in time}}\\\Rightarrow \dfrac{7-3}{2-0}\\\Rightarrow \dfrac{4}{2}\\\Rightarrow 2\ m/s$

7 0

3 years ago

A tree and a building stand side by side. The 5-foot tall tree cast a shadow of 12 feet. If the building is 80 feet tall, how lo

SpyIntel [72]

Answer:

The shadow of the building = 192 ft.

Step-by-step explanation:

∵ There is a proportional relation between the heights of the tree and the building and their shadows

∴ Height tree/height building = shadow tree/shadow building

$\frac{5}{80}=\frac{12}{x}$

x = $\frac{(80)(12)}{5}$ = 192 ft ⇒ x is the length of the shadow of the building

3 0

3 years ago