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LuckyWell [14K]

4 years ago

6

Plz read the question and answer correct plzzz I need help

1 answer:

Anna35 [415]4 years ago

7 0

I am not sure I can see all of the grey squares. To do this simply count the grey squares in the box and the number of white squares and write them as a ratio in grey:white format. When treated as a fraction (all ratios are fractions no matter what format they are written) the ratio can be reduced.
a. 3:3 or 1:1 when reduced
b. 8:1
c 3:6 or 1:2 when reduced
d. 7:8
e. 24:40 or 3:5 when reduced<span />

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Find the values of a, b, and c.

Hunter-Best [27]

<span>a = 36, b = 118, c = 62

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4 0

3 years ago

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Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer.

Marysya12 [62]

Answer:

This shows 3 pivot position matrixes.

Step-by-step explanation:

The given matrix is:

$\left[\begin{array}{ccc}1&-2&-5\\0&4&3\\-3&3&0\end{array}\right]$

The option D is correct for this matrix.

The matrix is invertible and the given matrix has 3 pivot positions.

The matrix is invertible if its determinant is nonzero.

Multiply the 3rd row by 1/3.we get:

$\left[\begin{array}{ccc}1&-2&-5\\0&4&3\\-1&1&0\end{array}\right]$

Now, add the first row with third row:

$\left[\begin{array}{ccc}0&-1&-5\\0&4&3\\-1&1&0\end{array}\right]$

Replace third row by first row:

$\left[\begin{array}{ccc}-1&1&0\\0&4&3\\0&-1&-5\end{array}\right]$

This shows 3 pivot position matrixes.

Hence, a matrix is invertible and has 3 pivot positions.

7 0

3 years ago

12x=18-6y in slope intercept form

Sidana [21]

Answer: y = -2x +3

slope intercept form: y = mx +b

divide everything by 6.

2x = 3 - y

isolate y by subtracting 3 from both sides

2x - 3 = -y

divide by negative 1 to get positive y

-2x +3 = y

5 0

3 years ago

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1. Un comal de fierro tiene 76 cm de diámetro, ¿cuál será su perímetro? y, ¿cuál es su superficie?

d1i1m1o1n [39]

Answer:

please speak english im not good at spanish im white i can barley read english as it is

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3 years ago

The answer to this question

In-s [12.5K]

Answer: There is no quetion this is not helpful i can't help if i don't no the problem

Step-by-step explanation:

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4 years ago