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Inessa [10]
3 years ago
15

Please help I need to answer this question and I am lost

Mathematics
2 answers:
marin [14]3 years ago
8 0

Answer: vv hvvh hjhbhh

Step-by-step explanation:

kirill115 [55]3 years ago
8 0

Answer:

Step-by-step explanation:

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PLEASE HELP FAST!! WILL GIVE BRAINLIEST TO FIRST ANSWER!​
oee [108]

Answer:

3 okie

Step-by-step explanation:

8 0
3 years ago
Find the Taylor series for f(x) centered at the given value of a. [Assume that f has a power series expansion. Do not show that
juin [17]

Answer:

The Taylor series of f(x) around the point a, can be written as:

f(x) = f(a) + \frac{df}{dx}(a)*(x -a) + (1/2!)\frac{d^2f}{dx^2}(a)*(x - a)^2 + .....

Here we have:

f(x) = 4*cos(x)

a = 7*pi

then, let's calculate each part:

f(a) = 4*cos(7*pi) = -4

df/dx = -4*sin(x)

(df/dx)(a) = -4*sin(7*pi) = 0

(d^2f)/(dx^2) = -4*cos(x)

(d^2f)/(dx^2)(a) = -4*cos(7*pi) = 4

Here we already can see two things:

the odd derivatives will have a sin(x) function that is zero when evaluated in x = 7*pi, and we also can see that the sign will alternate between consecutive terms.

so we only will work with the even powers of the series:

f(x) = -4 + (1/2!)*4*(x - 7*pi)^2 - (1/4!)*4*(x - 7*pi)^4 + ....

So we can write it as:

f(x) = ∑fₙ

Such that the n-th term can written as:

fn = (-1)^{2n + 1}*4*(x - 7*pi)^{2n}

6 0
3 years ago
Which exponential function is graphed here?
jek_recluse [69]

Answer:

y = 5^x

Step-by-step explanation:

y= b*(a)^x + c

c could = 1 but then you would not have an exponential function. c = 0 because the graph follows the x axis up until x = -2. Suppose c = 1. The the graph would follow y = 1 up until x = - 2

When x = 0, y = 1 which means that b. If b is anything but 0 or 1 then the y intercept would be stretched to a different place. If be = 0 then y would = 0.

So the graph is of the form y = a^x

Now when x = 0 the graph, the y intercept is y = a^0  or y = 1 So the y intercept is (0,1)

Now the next point is thing to solve for is a.

When x = 1, y = 5  (read the graph)

y = a^x

5 = a^1

5 = a because a^1 is a.

Answer

y = 5^x.

5 = a^1

4 0
3 years ago
Solve the right triangle
yan [13]

Answer: IXL is meant to be a practice  

Which means it will give you the answer if you get it wrong and won't loose any points or grades  but if you really need help go back to the homepage then start answering questions from NO. 1 and with that the questions will get easier :)

5 0
3 years ago
Write the ratio 15:25 as a fraction in simplest form.
ale4655 [162]

15:25

treat as fraction

\frac{15}{25}

factor

\frac{(3)(5)}{(5)(5)}=

(\frac{3}{5})(\frac{5}{5})=

(\frac{3}{5})(1)=

\frac{3}{5}

5 0
3 years ago
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