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3 years ago

In the ordered pair (2,7) what does 7 mean

Mathematics

2 answers:

Snowcat [4.5K]3 years ago

8 0

Not he ordered pair the 7 indicated the y in the y axis( the vertical line on a graph)

maria [59]3 years ago

6 0

7 is the y intercept

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What is the explicit formula for the sequence? 6, 5, 4, 3, 2, . . .

GuDViN [60]

I think that the right answer for this question is 6

6 0

3 years ago

Let: u, v, w \varepsilon R3 Prove: (u x v) * [(v x w) x (w x u)] = [u * (v x w)]2

sweet [91]

Recall that for 3 vectors $a,b,c$ , all in $\mathbb R^3$ , the vector triple product

$a\times(b\times c)=(a\cdot c)b-(a\cdot b)c$

$(v\times w)\times(w\times u)=((v\times w)\cdot u)w-((v\times w)\cdot w)u$

Also recall the scalar triple product,

$a\cdot(b\times c)$

which gives the signed volume of the parallelipiped generated by the three vectors $a,b,c$ . When either $a=b$ or $a=c$ , the parallelipepid is degenerate and has 0 volume, so

$(v\times w)\cdot w=0$

and the above reduces to

$(v\times w)\times(w\times u)=((v\times w)\cdot u)w$

so that

$(u\times v)\cdot[(v\times w)\times(w\times u)]=(u\times v)\cdot((v\times w)\cdot u)w$

The scalar triple product has the following property:

$a\cdot(b\times c)=b\cdot(c\times a)=c\cdot(a\times b)$

Since $(v\times w)\cdot u$ is a scalar, we can factor it out to get

$((v\times w)\cdot u)((u\times v)\cdot w)$

and by the property above we have

$(u\times v)\cdot w=u\cdot(v\times w)$

and so we end up with

$[u\cdot(v\times w)]^2$

as required.

4 0

4 years ago

The circumference (C) C of a swimming pool is 56 feet. Which formula can you use to find the diameter (d) d if you know that C=π

LiRa [457]

Since you are solving for diameter, and the equation is given to you, just isolate the variable for diameter (d).

(C)/π = (πd)/π

d = C/π is your formula you will use.

Plug in 56 for C

d = 56/π

d = ~17.825

3 0

4 years ago

Read 2 more answers

You are playing a game using the spinners shown.

Otrada [13]

Answer and Step-by-step explanation:

You should pick Spinner A. There is a high chance of getting red since there are three pieces of the spinner that has red on it, while Spinner B only has 2 instances of red.

#teamtrees #PAW (Plant And Water)

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3 years ago

Solve 1/5 (x+3)=−(2x+3)

Rasek [7]

Answer:

Step-by-step explanation:

just simplify the LHS first.

You can either multiply 1/5 by (x+3) and then solve

multiply both sides by 5 to get rid of 1/5 on LHS

I will multiply by 5

(x+3)= -10x-15 ( 5*1/5(x+3)= -5(2x+3)

now rearrange the equation

x+3=-10x-15

-10x-15-x-3=0

-11x-17=0

-11x=17

x= -17/11

4 0

3 years ago