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3 years ago

I dont understand this i did the study guide but this still doesn't make sense

Mathematics

1 answer:

Serga [27]3 years ago

4 0

The answer should be C

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What is the exact volume of the cone? A. 4071 cm B. on cm C. 150 cm D. 160 cm

Nimfa-mama [501]

Answer:

Step-by-step explanation:

volume of cone=1/3×π×4²×10=160/3 π cm³

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3 years ago

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Y_Kistochka [10]

Answer:

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3 years ago

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melisa1 [442]

Answer:

If x represents the number of weeks for Jennifer, plug in 0 for x since we want to know the balance when it was opened.

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0+30=f(x)

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Step-by-step explanation:

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4 years ago

A box witxh a height (x+5) cm has a square base with side x com. A second box with height (x+2) com has a square base with side

Eva8 [605]

Answer:

x=5.37 cm

Step-by-step explanation:

we know that

The volume of the box is

$V=Bh$

where

B is the area of the base of the box

h is the height of the box

Box 1

we have that

The area of the base is

$B=x^2\ cm^2$

$h=(x+5)\ cm$

The volume of the Box 1

is equal to

$V_1=x^2(x+5)\ cm^3$

$V_1=(x^3+5x^2)\ cm^3$

Box 2

we have that

The area of the base is

$B=(x+1)^2\ cm^2$

$h=(x+2)\ cm$

The volume of the Box 2

is equal to

$V_2=[(x+1)^2(x+2)]\ cm^3$

$V_2=[(x^2+2x+1)(x+2)]\ cm^3$

$V_2=(x^3+2x^2+x+2x^2+4x+2)\ cm^3$

$V_2=(x^3+4x^2+5x+2)\ cm^3$

Equate the equation of Volume 1 to the equation of Volume 2

$(x^3+5x^2)=(x^3+4x^2+5x+2)$

$(5x^2)=(4x^2+5x+2)$

$5x^2-4x^2-5x-2=0$

$x^2-5x-2=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is x=5.37 cm

see the attached figure

8 0

4 years ago

Given the equation -2x+3y=12, find the missing value in the ordered pair 3, Noo linkss plz

astraxan [27]

Answer:

(3,6)

Step-by-step explanation:

-2x+3y=12

Let x = 3

-2(3) +3y = 12

-6+3y = 12

Add 6 to each side

-6+6 +3y = 12+6

3y = 18

Divide each side by 3

3y/3 = 18/3

y = 6

5 0

3 years ago

I dont understand this i did the study guide but this still doesn't make sense ​

I dont understand this i did the study guide but this still doesn't make sense