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2 years ago

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judi is making a rope ladder. she uses 1/2 yard of rope for each step. how many steps can she make with 6 yards of rope? show yo

ur work.

2 answers:

Arisa [49]2 years ago

8 0

Answer:

12 steps for this problem.

Step-by-step explanation:

We have been given that Judi is making a rope ladder. She uses 1/2 yard of rope for each step.

Since Judi makes each step of ladder with 1/2 yard of rope, so one yard of rope will make two steps.

Therefore, Judi can make 12 steps of ladder from 6 yards of rope.

Veseljchak [2.6K]2 years ago

7 0

Answer:

12 steps.

Step-by-step explanation:

6 / (1/2)

= 12 steps

Hope this helped!

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A bag contains only red, green, brown and yellow marbles.

faltersainse [42]

Brown = 2x because of the equation done

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2 years ago

Let: u, v, w \varepsilon R3<br><br> 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

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

So

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

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

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

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

as required.

4 0

3 years ago

Please help and show work

castortr0y [4]

The three angles make a total of 180
(2x+7) +(3x+2)+41=180
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5x=130
x=26
so angle B is 2*26+7=59 degree

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2 years ago

The functions f and g are defined as follows.

olganol [36]

Step-by-step explanation:

Substitute x=7in function f

Substitute x= - 2 in function g

f(7)= - 2(7)+4

= -10

g(-2)= 3(-3)+5

= - 4

Brainliest please~

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2 years ago

If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

$(x - x)^2 + (y-b)^2 = r^2$

<em><u>First we will find the centre, (a , b): </u></em>

<em><u /></em> $a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1$ <em><u /></em>

<em><u>Find radius:</u></em>

$Radius, r = \frac{Diameter}{2}$

Diameter is the distance between (-1, 4) and (3, -2)

$diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\$

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Therefore , $r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units$

<em><u>Equation of the circle is : </u></em>

$(x - 1)^2 +(y-1)^2 = 13$ <em><u></u></em>

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2 years ago