3 years ago

Which of the following ordered pairs is a solution of x + y = 1?

Mathematics

1 answer:

a_sh-v [17]3 years ago

6 0

-2,-6 seems like the right anwser to me

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You went to 23 houses trick or Treating and you get 3 pieces of Candy at each house how much candy do you have Total ?

GenaCL600 [577]

Answer:

69 Pieces of candy

Step-by-step explanation

So you get 3 pieces of candy at every house. And you do that 23 more times. We can right that out as 23*3. Which is 69.

6 0

3 years ago

4. In the spinner below, the pointer stopped on the blank region. What color should the blank region be so

Tju [1.3M]

Red because there are more reds

4 0

3 years ago

If the sin 90° = 1, then the cos 0° = _____. (1 point)

Cloud [144]

sin 90° = 1

cos 0° = 1

There's a simple formula : sin θ = cos (90°- θ) or cos θ = sin (90°- θ) 

So : cos 0° = sin (90° - 0°) = sin 90° = 1

7 0

4 years ago

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The area of each square is 16 square units find the perimeter of a figure

vivado [14]

area=length*width

4*4=16

4+4+4+4=16

the perimeter is also 16

6 0

3 years ago

If f (n)(0) = (n + 1)! for n = 0, 1, 2, , find the taylor series at a=0 for f.

Pie

Given that $f^{(n)}(0)=(n+1)!$ , we have for $f(x)$ the Taylor series expansion about 0 as

$f(x)=\displaystyle\sum_{n=0}^\infty\frac{(n+1)!}{n!}x^n=\sum_{n=0}^\infty(n+1)x^n$

Replace $n+1$ with $n$ , so that the series is equivalent to

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}$

and notice that

$\displaystyle\frac{\mathrm d}{\mathrm dx}\sum_{n=0}^\infty x^n=\sum_{n=1}^\infty nx^{n-1}$

Recall that for $|x|$ , we have

$\displaystyle\sum_{n=0}^\infty x^n=\frac1{1-x}$

which means

$f(x)=\displaystyle\sum_{n=1}^\infty nx^{n-1}=\frac{\mathrm d}{\mathrm dx}\frac1{1-x}$
$\implies f(x)=\dfrac1{(1-x)^2}$

5 0

3 years ago