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nignag [31]
2 years ago
7

PLEASE HELP!!!

Mathematics
1 answer:
Brums [2.3K]2 years ago
6 0

Answer:

  • 2.21 gallons

Step-by-step explanation:

<u>Area of sides:</u>

  • 2(10*3 + 1/2(14 + 10)*6) = 204 square feet

<u>Area of the bottom:</u>

  • 20(3 + 10 + 5 + 10 + 6) = 680 square feet

<u>Total area:</u>

  • 204 + 680 = 884 square feet

<u>Paint needed:</u>

  • 884 / 400 = 2.21 gallons
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Daniel [21]

Answer:

x=12.5

Step-by-step explanation:

0.7x times (-1.4)=-3.5

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Ans:12.5

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3 years ago
Kate Kevin and Levi are comparing how fast they can run. Kate was able to run 5 miles in 47.5 minutes. Kevin was able to run 8 m
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Consider the following set of vectors. v1 = 0 0 0 1 , v2 = 0 0 3 1 , v3 = 0 4 3 1 , v4 = 8 4 3 1 Let v1, v2, v3, and v4 be (colu
Alona [7]

Answer:

We have the equation

c_1\left[\begin{array}{c}0\\0\\0\\1\end{array}\right] +c_2\left[\begin{array}{c}0\\0\\3\\1\end{array}\right] +c_3\left[\begin{array}{c}0\\4\\3\\1\end{array}\right] +c_4\left[\begin{array}{c}8\\4\\3\\1\end{array}\right] =\left[\begin{array}{c}0\\0\\0\\0\end{array}\right]

Then, the augmented matrix of the system is

\left[\begin{array}{cccc}0&0&0&8\\0&0&4&4\\0&3&3&3\\1&1&1&1\end{array}\right]

We exchange rows 1 and 4 and rows 2 and 3 and obtain the matrix:

\left[\begin{array}{cccc}1&1&1&1\\0&3&3&3\\0&0&4&4\\0&0&0&8\end{array}\right]

This matrix is in echelon form. Then, now we apply backward substitution:

1.

8c_4=0\\c_4=0

2.

4c_3+4c_4=0\\4c_3+4*0=0\\c_3=0

3.

3c_2+3c_3+3c_4=0\\3c_2+3*0+3*0=0\\c_2=0

4.

c_1+c_2+c_3+c_4=0\\c_1+0+0+0=0\\c_1=0

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3 years ago
The difference of 2 and the product of 3and k
allsm [11]
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MrRa [10]

Answer:

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Step-by-step explanation:

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d.smaller than the standard deviation

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