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Anna35 [415]
2 years ago
11

A home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 998.25 cubic fe

et. The cost of wall paint is $0.12 per square foot and the cost of ceiling paint is $0.18 per square foot. Find the room dimensions that result in a minimum cost for the paint. g

Mathematics
1 answer:
AlladinOne [14]2 years ago
6 0

Answer:

the room dimensions that result in a minimum cost for the paint is;

x = 11 ft

y = 11 ft

z = 8.25 ft

Step-by-step explanation:

Shown in the attachment;

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Plss help which is the same value as 20% of 45??
Eduardwww [97]

Answer:

A, B and D

Step-by-step explanation:

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1 year ago
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0=4t-16t^2 Solve this please
vaieri [72.5K]

Answer:

\large\boxed{t=0\ \vee\ t=\dfrac{1}{4}}

Step-by-step explanation:

4t-16t^2=0\qquad\text{divide both sides by 4}\\\\\dfrac{4t}{4}-\dfrac{16t^2}{4}=\dfrac{0}{4}\\\\t-4t^2=0\\\\t(1-4t)=0\iff t=0\ \vee\ 1-4t=0\\\\1-4t=0\qquad\text{subtract 1 from both sides}\\\\-4t=-1\qquad\text{divide both sides by (-4)}\\\\t=\dfrac{1}{4}

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3 years ago
What is the answer to a and b please and thank you
vagabundo [1.1K]
A.) according to the graph, Austin appears to be burning 10 calories per minute. If you look at a perfect point on the graph, which I chose (50,5) and you do x over y or calories per minute, you get a unit rate of 10 calories per minute.

b.) Since you have already found the unit rate in question a, your slope would be 10. 
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3 years ago
if you deposit $8000 into an account paying 9% annual interest compunded semi anually how long will it take for your money to do
Anna007 [38]

Answer:

7.87 years

Step-by-step explanation:

#First we determine the effective annual rate based on the 9% compounded semi annual;

i_m=(1+i/m)^m-1\\\\=(1+0.09/2)^2-1\\\\=0.09203

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

A=P(1+i)^n\\\\A=2P, i=i_m\\\\16000=8000(1.09203)^n\\\\2=1.09203^n\\\\n=\frac{log \ 2}{log \ 1.09203}\\\\=7.87324\approx7.87 \ yrs

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4 0
3 years ago
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Mnenie [13.5K]

Answer:

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Step-by-step explanation:

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total is 2+3 = 5 liters

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orange = 3/5

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total = 7

pineapple = 3/7

orange = 4/7

Get a common denominator to compare

5 and 7 = 35

tropical punch

pineapple = 2/5 *7/7 = 14/35

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Jo

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Jo will have both a stronger pineapple and orange taste than the tropical drink and the orange will be stronger than the pineapple in her drink

5 0
3 years ago
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