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3 years ago

Why might campers lost in the woods retrace their steps

Mathematics

1 answer:

Nana76 [90]3 years ago

4 0

To hopefully find their way back to where they began or hopefully to a place to stay hydrated like a river or stream

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Find the total surface area of cube whose volume is 27000cm^2

Furkat [3]

5400 is ur answer .

ans: 5400 is the surface area

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2 years ago

A shipping tube is shaped like a right triangular prism. The bases are equilateral triangles with edges of 5 inches and a height

Dovator [93]

168 is the answernis it ok

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2 years ago

△ABC ~ △DEF What is the scale factor between them?

VMariaS [17]

2/3

6x = 4
x = 2/3

The scale factor can be determined by using similar sides

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2 years ago

Use a matrix to solve the system:

Romashka-Z-Leto [24]

Answer:

(2.83 , 1 , 4)

Step-by-step explanation:

$2x+2y-z=4\\4x-2y-2z=2\\3x+3y-4z=-4\\$

Rewrite these equations in matrix form

$\left[\begin{array}{ccc}2&2&-1\\4&-2&-2\\3&3&-4\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\$

we can write it like this,

$AX=B\\X=A^{-1}B$

so to solve it we need to take the inverse of the 3 x 3 matrix A then multiply it by B.

We get the inverse of matrix A,

$A^{-1}=\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right] \\$

now multiply the matrix with B

$X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\$

4 0

2 years ago

Round 74952 to the nearest 1000

stellarik [79]

75,000 is the answer!

If this was the appropiate answer make sure to mark as the brainliest!
-procklown

6 0

3 years ago

Read 2 more answers