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Otrada [13]
3 years ago
7

What is the area of this irregular figure?

Mathematics
2 answers:
VikaD [51]3 years ago
4 0

Answer:

hey man if you figure this out comment back bc i need to know also. sorry and thanks!

Step-by-step explanation:

marishachu [46]3 years ago
3 0

Answer:

A=192cm^2

Step-by-step explanation:  Cut the shape. You now have Shape A and B.

Shape A is 8x8=64cm.

Shape B is 16x8=128cm

128cm+64cm= 192^2

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What is the determinant of the coefficient matrix of this system? <br> 4x-3y=-8 <br> 8x-3y=12
gladu [14]

The coefficient matrix is build with its rows representing each equation, and its columns representing each variable.

So, you may write the matrix as

\left[\begin{array}{cc}\text{x-coefficient, 1st equation}&\text{y-coefficient, 1st equation}\\\text{x-coefficient, 2nd equation}&\text{y-coefficient, 2nd equation} \end{array}\right]

which means

\left[\begin{array}{cc}4&-3\\8&-3\end{array}\right]

The determinant is computed subtracting diagonals:

\left | \left[ \begin{array}{cc}a&b\\c&d\end{array}\right]\right | = ad-bc

So, we have

\left | \left[\begin{array}{cc}4&-3\\8&-3\end{array}\right] \right | = 4(-3) - 8(-3) = -4(-3) = 12

8 0
3 years ago
File:///Users/haroldpagunsan/Desktop/Screen%20Shot%202018-01-26%20at%2012.48.02%20PM.png
Orlov [11]
You can not put this on here :)
5 0
3 years ago
What is the answer to the following algebra question: 2x + 7(4x + 3) =
svlad2 [7]
1) Distribute
2x + 28x + 21

2) Combine like terms
30x + 21

Since there are no more like terms, 30x and 21 cannot be combined. Therefore, the answer is 30x+ 21
6 0
3 years ago
Read 2 more answers
Find a common difference of the arithmetic sequence -2, -1 4/5, -1 3/5, -1 2/5,
elixir [45]

Answer:

The common difference is \frac{1}{5} or 0.2

Step-by-step explanation:

Given:

Arithmetic Sequence -2, -1 4/5, -1 3/5, -1 2/5,

First term      = a₁ = -2

Second term = a₂ = \frac{-9}{5}

Third term     = a₃ = \frac{-8}{5}

Fourth term = a₄ = \frac{-7}{5}

To Find:

Common Difference = d = ?

Solution:

Formula for Common Difference d ,\textrm{common difference}= \textrm{Second Term} -\textrm{First Term}=\textrm{Third Term}-\textrm{Second Term}

\textrm{common difference} = a_{2}- a_{1}= a_{3}- a_{2}=a_{4}- a_{3}

∴ d = \frac{-9}{5}-(-2)\\d=\frac{-9}{5}+2\\d=\frac{1}{5}\\ \therefore d =0.2\\

The common difference is \frac{1}{5} or 0.2

6 0
3 years ago
Round 3897.24 to the nearest thousand​
postnew [5]

Answer:3897

Step-by-step explanation:

7 0
2 years ago
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