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katrin2010 [14]
3 years ago
6

Serial numbers for a product are to be made using 2 letters followed by 2 digits. The letters are to be taken from the first 6 l

etters of the alphabet, with no repeats. The digits are taken from the10 digits , with no repeats. How many serial numbers can be generated?
Mathematics
1 answer:
Butoxors [25]3 years ago
4 0

Answer:

0

Step-by-step explanation:

0

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It is True 200% legit!

Step-by-step explanation:

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3 years ago
multiply the polynomials. What is the coefficient of the last term? −4m(2m3 −6m2 + m − 5) = −8m4 +24m3 −4m2 ___m
lesya692 [45]
+20m . Hope i helped
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Solve the inequality |2h-3| >1
mel-nik [20]

Answer:

\large\boxed{h>2\ \vee\ h

Step-by-step explanation:

|2h-3|>1\iff2h-3>1\ \vee\ 2h-34\ \vee\ 2h2\ \vee\ h

5 0
3 years ago
Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 If the system has infinitely many solutions, y
choli [55]

Answer:

The set of solutions is \{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number}  \}

Step-by-step explanation:

The augmented matrix of the system is \left[\begin{array}{ccccc}3&6&6&-9\\-2&-3&-3&3\end{array}\right].

We will use rows operations for find the echelon form of the matrix.

  • In row 2 we subtract \frac{2}{3} from row 1. (R2- 2/3R1) and we obtain the matrix \left[\begin{array}{cccc}3&6&6&-9\\0&1&1&-7\end{array}\right]
  • We multiply the row 1 by \frac{1}{3}.

Now we solve for the unknown variables:

  • x_2+x_3=-7, x_2=-7-x_3
  • x_1+2x_2+2x_3=-2, x_1+2(-7-x_3)+2x_3=-2 then x_1=12

The system has a free variable, the the system has infinite solutions and the set of solutions is \{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number}  \}

6 0
3 years ago
The original price of a skateboard was $25. New owners of the store raised the price to
Paha777 [63]
Answer:
D. 20%
Explain:
30-25=5
5/25= 20%
4 0
2 years ago
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