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Papessa [141]
3 years ago
11

1. Solve the problem [(–7 + 2) + 4] – 3 = ?

Mathematics
1 answer:
Anna11 [10]3 years ago
4 0

For number 3 it is D


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There where 16 more nickels than dimes in the purse. If there where 100 coins total, how many nickels were there?
choli [55]
76
100 - 16 = 69 so the x axis would carry the 4 and make it 76
6 0
3 years ago
7th grade math help me please :))
KatRina [158]

Answer:

40

Step-by-step explanation:

s = 2;

h = 4

Surface area = 2s² + 4sh

                     = 2*2² + 4 * 2 * 4

                    = 2 *4 + 32

                    = 8 + 32

                  = 40 sq. units

7 0
3 years ago
Matrix a is a 6 × 5 matrix. which order of matrix can be multiplied by matrix a to create matrix ab?
mezya [45]

Order (B) 5 × 6 of the matrix can be multiplied by matrix a to create matrix ab.

<h3>What is a matrix?</h3>
  • A matrix is a rectangular array or table of numbers, symbols, or expressions that are organized in rows and columns to represent a mathematical object or an attribute of such an object in mathematics.
  • For instance, consider a matrix with two rows and three columns.

To find the order of matrix:

  • We must first check the dimension of two matrices, say matrix A by matrix B, before we may multiply them.
  • Multiplication is achievable if the number of columns in the first matrix, A, equals the number of rows in the second matrix.
  • Dimension is assigned to the provided matrix: 6 × 5
  • This means the given matrix contains six rows and five columns.
  • As a result, the second matrix MUST have 5 rows in order for multiplication to be POSSIBLE.
  • The only matrix with 5 rows among the above alternatives is the matrix with dimension (B) 5 × 6.

To prove:

  • In other words, the inner products of the dimensions should be equal.
  • That is; (a × b)(b × a) is possible but (a ×b)(c × b) is impossible.
  • The dimensions of the matrix are given by, row × column.

Therefore, order (B) 5 × 6 of the matrix can be multiplied by matrix a to create matrix ab.

Know more about matrix here:

brainly.com/question/24079385

#SPJ4

7 0
2 years ago
At a carnival Tom bought 27 tickets. If he used 9 tickets trying to win the ring toss game, what is the ratio of tickets he has
Triss [41]
2/3.  He has 18/27 tickets after he used 9.  18/27 = 2/3
6 0
4 years ago
Choose the correct reason for each algebraic statement. A. Subtraction Property of Equality B. Combine like terms C. Distributiv
Artemon [7]

Answer:

b

Step-by-step explanation:

hope this helps

6 0
3 years ago
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