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Ganezh [65]
3 years ago
9

Which of the following is a valid use of the associative property of addition?

Mathematics
1 answer:
Ne4ueva [31]3 years ago
5 0
B is the valid use of the associative property of addition
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((-7,1). (-3,2). (0, -2). (5, -5)}What are the domain and range of the function represented by the set of ordered pairs?
Nina [5.8K]

Answer:

Domain:{-7,-3,0,5}

Range:{1,2,-2,-5}

Step-by-step explanation:

i know because it works for me.

4 0
2 years ago
Evaluate |x|+2.7​ for x=−1.5​ .
Olenka [21]

Answer:

1.2

Step-by-step explanation: Hope it helps

3 0
3 years ago
Let f(x) =-2x-7 and g(x)=-4x+3 find (f•g)(-5)
Ierofanga [76]
F(-5) x g(-5)

f(-5) = -2(-5) - 7
f(-5) = 10 - 7
f(-5) = 3

g(-5) = -4(-5) + 3
g(-5) = 20 + 3
g(-5) = 23

f(-5) x g(-5) = 3 x 23 = 69

Your answer is 69
4 0
3 years ago
How do I do this a second way? I totally forgot because I haven't done it in so long.
ira [324]
You take away the 4 from the 8 which is equal to 4 then you have to barrow from the 2 to make the 4 to 14 and when you    wait you are basically right your calculation is right
5 0
3 years ago
find the Taylor Series for tan−1(x) based at 0. Give your answer using summation notation and give the largest open interval on
enyata [817]

Let f(x)=\tan^{-1}x. Then f'(x)=\frac1{1+x^2}. Note that f(0)=0.

Recall that for |x|, we have

\displaystyle\frac1{1-x}=\sum_{n\ge0}x^n

This means that for |-x^2|=|x|^2, or -1, we have

\displaystyle f'(x)=\frac1{1+x^2}=\frac1{1-(-x^2)}=\sum_{n\ge0}(-x^2)^n=\sum_{n\ge0}(-1)^nx^{2n}

Integrate the series to get

f(x)=f(0)+\displaystyle\sum_{n\ge0}\frac{(-1)^n}{2n+1}x^{2n+1}

\implies\tan^{-1}x=\displaystyle\sum_{n\ge0}\frac{(-1)^n}{2n+1}x^{2n+1}

6 0
3 years ago
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