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polet [3.4K]
3 years ago
11

Help in the question above please

Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0

Answer:

A)11

Step-by-step explanation:

These are matrices one dimensional with one column and 3 rows each.

-The product of the matrices is obtained by multiplying the correspond values and summing up;

pq=\left[\begin{array}{ccc}3\\2\\-1\end{array}\right] \times\left[\begin{array}{ccc}5\\-1\\2\end{array}\right] \\\\\\\\=(3\times 5)+(2\times -1)+(-1\times 2)\\\\=15+-2+-2\\\\=11

Hence, the product of p and q is 11

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Translate each verbal phrase into an algebraic expression or equation.
mario62 [17]

Answer:

13) 7 + x/2 = 10

14)  2x - 5 = 7

15) 4x - 1 = 11

16) 6x - 6 = 12

17) x/3 + 10 = 12

18) 2x + 7 = 1

19) 9 + x/7 = 11

20) 8(n - 3)

Step-by-step explanation:

The quotient of x and 2 = x ÷ 2 = x/2

The product is the result of multiplying two or more other numbers

The sum is the result of adding two or more numbers

The difference is the result of subtracting one number from another

13) 7 + x/2 = 10

14)  2x - 5 = 7

15) 4x - 1 = 11

16) 6x - 6 = 12

17) x/3 + 10 = 12

18) 2x + 7 = 1

19) 9 + x/7 = 11

20) 8(n - 3)

7 0
3 years ago
Trip has 15 coins worth 95 cents.Four of the coins are each worth twice as much as the rest. Construct a math argument to justif
const2013 [10]
(11*5)+(4*10)=95
11+4=15
Both are equal to the constraints of the word problem and there for justified.
6 0
3 years ago
Sarah has 128 stickers. alex has 10 fewer stickers than sarah. how many stickers does Alex have.
nikitadnepr [17]
To get your answer you first subtract 10 from 128 which is 118.
4 0
3 years ago
Line segment MN has endpoints M(4,-5) and N(-3,1). Find MN.
pshichka [43]
9.2195444572928873100022742817628. or square root of 85

8 0
3 years ago
If 5x - 8 = 37, then x = 9.​
lyudmila [28]

Answer:

true

Step-by-step explanation:

5x-8=37

5(9)-8=37

45-8=37

37=37

8 0
4 years ago
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