All categories

1 year ago

Will give you brilliantest

Mathematics

1 answer:

Zina [86]1 year ago

6 0

I don’t know but maybe 2

You might be interested in

100 points link down below! no off sight links please no I don't knows just a thing that state all the answers Ill give you anot

dolphi86 [110]

Answer:

All of the questions?

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

What percent less parakeets are there then dogs

viktelen [127]

There are 66.666666 etc..... so if you round you get
67%

5 0

3 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

Which is the best estimate for the length of the car 4 kilometers 4tons 4kilograms 4meters

Ad libitum [116K]

4 meters

tons and grams are mass measurements
kilometer is closer to a mile measurement
so the only one that makes sense is 4 meters

3 0

3 years ago

Read 2 more answers

How many one and one-halves are in six?

sergeinik [125]

1 and 1/2 is the same as 1.5 and 1.5 * 4 is 6 so I would say 4

6 0

3 years ago