Which is the graph of the given function?

Mathematics

1 answer:

Schach [20]3 years ago

4 0

ANSWER

The correct choice is A.

EXPLANATION

The given cosine function is:

$f(t) = 2 \cos( - 4t)$

This function has an amplitude of 2.

Hence it must have range,

-2≤f(t)≤2

It has a period of

$\frac{\pi}{2}$

Hence the function must complete one cycle on the interval,

[0,½π],

[½π,π],

etc.

The negative sign shows a reflection in the y-axis but since the cosine function is even, the function retraces itself.

The correct choice is A

You might be interested in

PLEASE HURRY I'M BEING TIMED

kobusy [5.1K]

Answer:

i think the answer is D my guy

Step-by-step explanation:

do you need the steps??

mark brainliest :p

6 0

3 years ago

hugo is saving for a new baseball glove. he saves $10 the first week, and $6 each week for the next 6 weeks. the expression 10 +

BigorU [14]

So if Hugo has saved $10 the first week and $6 for the next 6 weeks the answer would be $46.

you can either add up 6 six times or you can multiple 6 by 6.
6+6+6+6+6+6=36 or 6×6=$36

then you add the $10 from the first week & the $36 from the $6 you saved for 6 weeks to get your final answer of $46.
$36+$10=$46

5 0

3 years ago

The Pythagorean Theorem what is this????????

raketka [301]

I’m also struggling with that but it’s the perimeter of a right triangle

3 0

3 years ago

Please help, this is due soon!

Oliga [24]

Before outlier : 7.25
After outlier : 4

7.25 - 4 = 3.25

So the mean decreases by 3.25 when the outlier is removed.

6 0

3 years ago