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german
3 years ago
7

Giving brainliest !!!!!

Mathematics
1 answer:
rjkz [21]3 years ago
7 0
Answer: 92/3(π)

formula for cylinder: π • r^2 • h
formula for sphere: 4/3 • π • r^3

plug in radius value (2) into the formulas and then find sum of the two volumes.
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Alejandro has 128 ounces of dog food.He feeds his dog 8 ounces each day.How many days will the dog food last
AnnyKZ [126]
16 days

Divide 128oz(starting point) by 8(how many you feed everyday)


An equation would look something like this:

x = 128/8

3 0
4 years ago
Read 2 more answers
The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t
zloy xaker [14]

Answer:

103=  p small

plarge = 123

Step-by-step explanation:

We know that the the ratio of the areas is the scale factor squared/

Larger triangle over smaller triangle

72

----- = scale factor ^2

50

simplify by dividing by 2 on top and bottom

36

----- = scale factor ^2

25

Take the square root of each side

sqrt(36)

-------------- = sqrt(scale factor ^2)

sqrt(25)

6

-------------- = scale factor

5

The ratio of the perimeters is the scale factor

p large             6

-------------- = ----------------

 p small                5

Using cross products

6 p large = 5 p small

We know the sum is 226

p large + p small = 226

p large = 226 - p small

We have 2 equation and 2 unknowns

6 p large = 5 p small

Substitute for p large

6 (226 - p small) = 5 p small

1356 - 6 p small = 5 p small

Add 6 p small to each side

1356 = 11 p small

divide by 11

1356/11 =  p small

P large = 226-1356/11

p large = 2486/11-1356/11

plarge = 1130/11

The solution requires whole number answers so

1356/11 =  p small

123.27 which rounds to 123

plarge = 1130/11

plarge = 102.7272 = 103

6 0
3 years ago
Instructions: If varies inversely as and =2 when =8, find when =2. Write the equation using the given information, then use the
grigory [225]

Solution:

Given that;

varies inversely as

\begin{gathered} y\propto x \\ The\text{ expression ecomes the equation below} \\ y=kx \\ Where\text{ k is the constant} \end{gathered}

=2 when =8,

\begin{gathered} y=kx \\ 2=k(8) \\ k=\frac{2}{8}=\frac{1}{4} \\ k=\frac{1}{4} \end{gathered}

The equation becomes

\begin{gathered} y=kx \\ y=\frac{1}{4}x \end{gathered}

The value of when =2

\begin{gathered} y=\frac{1}{4}x \\ y=\frac{1}{4}(2)=\frac{2}{4}=\frac{1}{2} \\ y=\frac{1}{2} \end{gathered}

Hence, y = 1/2

3 0
1 year ago
HELP! PLZ I need to show work too . <br><br><br> -12.5 - (-12)
Mila [183]

Answer:

-0.5

Step-by-step explanation:

-12.5 - (-12) = -12.5 + 12 (because you distribute the minus sign). Then, when adding you get - 0.5

4 0
3 years ago
Read 2 more answers
The labor cost for carpet installation is $4 per square foot. How much will it cost to install new carpeting in 256 square feet
MatroZZZ [7]
So to do this i'm pretty sure you just multiply. 4*256 and you''l get your answer which would be $1024. Don't quote me on that though. :) I hope you get it right.
5 0
4 years ago
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