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Mashutka [201]

3 years ago

" class="latex-formula">

Mathematics

1 answer:

Fed [463]3 years ago

8 0

3.605
is the answer.

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Someone help me please

Ludmilka [50]

Answer:

I think the answer may be D. I am not certain but I would choose D.

Step-by-step explanation:

6 0

4 years ago

The acceleration of an object falling through the air will decrease at a rate of 15% per second due

Flura [38]

Answer:

$a=9.8(0.85)x^{t}$

Can you give me brainllest please and thank you

7 0

3 years ago

Choose the letter of the equation for<br> the graph.

andreev551 [17]

The graphed trigonometric function is the one in option a.

<h3>Which is the equation of the graph?</h3>

The key parts that we can see on the graph are:

The midline is y = 1.

From this we know that the correct option is either a or b.

at x = 0, f(x) = 0.

Now we can evaluate options a and b in x = 0 and see which one is equal to zero.

for a:

y = sin(0 - pi/2) + 1 = sin(-pi/2) + 1 = -1 + 1 = 0

for b:

y = cos(0 + pi/2) + 1 = 0 + 1 = 1

Then we can see that option a is the correct option.

If you want to learn more about trigonometric functions:

brainly.com/question/8120556

#SPJ1

4 0

2 years ago

Is this answer correct if not send help

Aleonysh [2.5K]

I believe that is correct

5 0

3 years ago

Which of these is an odd function?

Yakvenalex [24]

Answer:

$f(x)=2x^3+x$

Step-by-step explanation:

An odd function <em>f</em> is one where $f(-x)=-f(x)$ . We can interpret this is meaning: reflecting the graph horizontally $f(-x)$ has the same effect as reflecting it vertically $-f(x)$ . The only graphs that meet this requirement are ones with reflectional symmetry across the line y = x, so we can immediately elimate the functions $f(x)=3x^2+7$ and $f(x)=5x^2-6$ , which have horizontal symmetry, but not the kind of symmetry we're looking for.

That leaves us with $f(x)=2x^3+x$ and $f(x)=4x^3+2x^2$ . One feature of exponents we can utilize is that -1 to an even power is 1, while -1 to an odd power is -1. If we want $f(-x)=-f(x)$ , we need to flip the signs of <em>all </em>the coefficients, and we can only do that if all the powers of x are odd. The only function with only odd powers of x is $f(x)=2x^3+x$ , and plugging in -x to the function reveals that

$f(-x)=2(-x)^3+(-x)\\f(-x)=-2x^3-x=-(2x^3+x)=-f(x)$

So $f(x)=2x^3+x$ the only odd function on the list!

3 0

3 years ago