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3 years ago

13

The formula for the volume of a cone is . find the radius, to the nearest hundredth, of a cone with a height of 3 in. and a volu

me of 12 in.3.

1 answer:

QveST [7]3 years ago

8 0

Andjdmsbshskdndkdmdnxkdmebdosndn

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Always, sometimes, or never true?

pantera1 [17]

Answer:

Sometimes true, because x could be anything

Step-by-step explanation:

7 0

2 years ago

Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).

Licemer1 [7]

<u>coordinates of the point are (2,6) and (3,4)</u>

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB = $\frac{1k}{2k}$ = ratio 1:2

now

finding p

for this

$(m_1,m_2)=(1,2)$

For AB

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

now by using division formula

$(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)$

similarly

Q divides AB

Ratio of AQ and QB = $\frac{2k}{1k}$ = ratio 2:1

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

$(m_1,m_2)=(2,1)$

by using division formula

$(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)$

4 0

2 years ago

A paper clip is 2.35 cm. How many meters long is the clip?

sineoko [7]

The answer is 0.0235

3 0

3 years ago

Read 2 more answers

Can a line segment have two midpoints ?

zzz [600]

Actually, no they cannot. The midpoint is the single point at the very center of the line segment. Since no segment can have multiple centers, they cannot have more than a single midpoint. Sorry :3

Hope this helped!! :D

5 0

3 years ago

Read 2 more answers

nata0808 [166]

$\sf \vec{w}=16km$
$\sf \vec{s}=9km$

Total distance

$\\ \sf\longmapsto PQ=16km-9km$

$\\ \sf\longmapsto PQ=7km$

4 0

2 years ago