3 years ago

Question 1 or 10

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

Answer:

C. y-2 = 4(x+1)

Step-by-step explanation:

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Find the volume of a cylinder with a diameter of 8 inches and a height that is 3 times the radius. Use 3.14 for pi round answer

masha68 [24]

Answer:

603.19

Step-by-step explanation:

v=π $r^{2} h$

pi is 3.14

Radius= Diameter/2= 4, so r square= 16

Height= Radius*3=12

So volume= 3.14*16*12=603.19

6 0

2 years ago

If the acceleration of an object is given by dv/dt = −2v, Find the position function s(t) if v(0) = 7 and s(0) = 0.

kirill [66]

Answer:

Step-by-step explanation:

Given that acceleration of an object is

$\frac{dv}{dt} =-2v\\\frac{dv}{v} =-2dt\\ln v = -2t+C\\$

is the solution to the differential equation

Since v(0) =7

we get ln 7 = C

Hence $lnv = -2t+ln 7\\v=7e^{-2t}$

since velocity is rate of change of distance s we have

$v=\frac{ds}{dt} =7e^{-2t}\\s= [tex]s(t) =\frac{-7}{2} (e^{-2t})+C)[$

substitute t=0 and s=0

$C=7/2$

So solution for distance is

$s(t) =\frac{-7}{2} (e^{-2t}-1)$

4 0

3 years ago

What is 7.55×8 please show work

iVinArrow [24]

Is this Long multiplication?

7 0

3 years ago

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The midpoint of is point P at (−16,6). If point A is at (−10,8), what are the coordinates of point B? (−42,20) (−22,4) (−13,7) (

statuscvo [17]

Answer:

B (-22 , 4)

Step-by-step explanation:

-16=(-10+x)/2

*2 *2

-10+x=-32

+10 +10

x=-22

6=(8+y)/2

*2 *2

12=8+y

-8 -8

4=y

so B(-22, 4)

6 0

3 years ago

Y-4x=3 in slope intercept form

Alecsey [184]

Step-by-step explanation:

y - 4x = 3

Writing in slope intercept form that is y = mx + c

y = 4x + 3

Hope it will help :)

4 0

3 years ago

Read 2 more answers