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2 years ago

Judy is trying to stack books on a shelf that is 20 inches tall. If each book is 4/5 inches thick, how many

Mathematics

1 answer:

Leviafan [203]2 years ago

5 0

49 because she can stack more ty

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Calculate the infant mortality rate (per 1,000 live births) from the following data:

Feliz [49]

Answer:

ahsbbsnssisiskak sjsnsnaan

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3 years ago

If a+b+c =0 show that a³+b³+c³= 3abc

slega [8]

Answer:

Step-by-step explanation:

a+b+c=0, a+b=-c,a+c=-b, b+c=-a

(a+b+c)^3=(a+b+c)^2*(a+b+c)=(a^2+b^2+c^2+2ab+2ac+2bc)*(a+b+c)=

a^3+ab^2+ac^2+2a^2b+2a^2c+2abc+a^2b+b^3+bc^2+2ab^2+2abc+2b^2c+a^2c+b^2c+c^3+2abc+2ac^2+2bc^2=a^3+b^3+c^3+3a^2b+3a^2c+3ac^2+3ab^2+3bc^2+3b^2c+6abc=

a^3+b^3+c^3+3a^2*(b+c)+3c^2(a+b)+3b^2(a+c)+6abc=

a^3+b^3+c^3+3a^2*(-a)+3c^2*(-c)+3b^2*(-b)+6abc=

a^3+b^3+c^3-3a^3-3c^3-3b^3+6abc=

6abc-2a^3-2b^3-2c^3=2(3abc-a^3-b^3-c^3)=

2*[3abc-(a^3+b^3+c^3)]=0

so 3abc-(a^3+b^3+c^3)=0

so a^3+b^3+c^3=3abc

7 0

2 years ago

PLEASE PLEASE PLEASEEEEE HELP!!!

IRINA_888 [86]

Step-by-step explanation:

Volume of cylinder

= πr²h

= π×3²×6

= 54π

= 169.56units³

5 0

2 years ago

Read 2 more answers

Anybody...Help!!!!!!!!!!!

Sloan [31]

Simple...

when they ask for the rate of change they ask for slope -->>

Using $\frac{ y_{1} - y_{2} }{ x_{1} - x_{2} }$ to find the rate of change for (-3,0) and (-2,-5)

$\frac{0--5}{-3--2}$

$\frac{0+5}{-3+2}$

$\frac{5}{-1}$

m=-5

Thus, your answer.

4 0

2 years ago

What is 857/45 as a mixed number? having trouble with sixth grade math.

barxatty [35]

<span>857/45 as a mixed number is </span>19 2/45

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2 years ago