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gizmo_the_mogwai [7]
2 years ago
6

100 POINTS!

Mathematics
1 answer:
ElenaW [278]2 years ago
5 0
All positive real numbers and 0
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During a school event, Noah is selling pizza at the food stand for $1.25 per slice.
Eddi Din [679]

Answer:

1. When he sold 20 slices of pizza at $1.25 each, he made $20

  When he sold 50 slices of pizza at $1.25 each, he made $62.5

2. 96 slices of pizza. You would get that by dividing 120 by 1.25, as he needs to make $120, and each slice costs $1.25

7 0
3 years ago
Someone please help ASAP will give brainliest
algol13

√0.02 is rational

√2 is rational

√2 is irrational

√1/2 is rational

6 0
3 years ago
Is matrix multiplication comutative?
konstantin123 [22]

Answer:

Matrix multiplication is not conmutative

Step-by-step explanation:

The matrix multiplication can be performed if the number of columns of the first matrix is equal to the number of rows of the second matrix

Let A with dimension mxn and B with dimension nxp represent two matrix

The multiplication of A by B is a matrix C with dimension mxp, but the multiplication of B by A is can't be calculated because the number of columns of B is not the number of rows of A. Therefore, you can notice that is not conmutative in general.

But even if the multiplication of AB and BA is defined (For example if A and B are squared matrix of 2x2) the multiplication is not necessary conmutative.

The matrix multiplication result is a matrix which entries are given by dot product of the corresponding row of the first matrix and the corresponding column of the second matrix:

A=\left[\begin{array}{ccc}a11&a12\\a21&a22\end{array}\right]\\B= \left[\begin{array}{ccc}b11&b12\\b21&b22\end{array}\right]\\AB = \left[\begin{array}{ccc}a11b11+a12b21&a11b12+a12b22\\a21b11+a22b21&a21b12+a22b22\end{array}\right]\\\\BA=\left[\begin{array}{ccc}b11a11+b12a21&b11a12+b12a22\\b21a11+b22ba21&b21a12+b22a22\end{array}\right]

Notice that in general, the result is not the same. It could be the same for very specific values of the elements of each matrix.

6 0
3 years ago
Emily is trying a new diet
Xelga [282]
What’s the question?
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6 0
3 years ago
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What is (14,-8)and (7,-6) slope?
bonufazy [111]

Answer:

2/-7

Step-by-step explanation:

Formula for slope given two points is attached.

1) Plug the points into the slope formula:

(-6+8)/(7-14)

2) Simplify:

2/-7

8 0
3 years ago
Read 2 more answers
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