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sergiy2304 [10]
3 years ago
11

Last week, Kenneth ran a race in 33 seconds. This week he ran the same race and improved his time by 0.04 seconds. How long did

it take Kenneth to run the race this week?
Mathematics
1 answer:
stepladder [879]3 years ago
5 0

it took Kenneth 32.96 seconds to finish the race this week.

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The reduced row-echelon forms of the augmented matrices of four systems are given below. How many solutions does each system hav
vagabundo [1.1K]

Answer:

A. Infinitely many solutions.

Step-by-step explanation:

The row and column numbers are equal in the echelon. This rows have 0001 numbers which indicates that there is free variable at the end. The reduced row echelon has equal number of rows and columns. There are infinitely many solution as the numbers in the rows are zero ending of the free variable 1. If there is no free variable then there will be no solution.

8 0
3 years ago
Currently 1 United States dollar equals 19.25 Mexican pesos. If you exchanged 725 Mexican pesos for US dollars, what amount woul
Irina18 [472]

Answer:

The value of 725 Mexican pesos is equals to 37.66 US dollars

Step-by-step explanation:

Given as :

The value of 1 US dollar equals to 19.25   Mexican pesos

The total amount of Mexican pesos = 725

Now,

∵  19.25  Mexican pesos equals to 1 US dollars

∴    725  Mexican pesos equals to  \frac{725}{19.25} = 37.66 US dollars

Hence The value of 725 Mexican pesos is equals to 37.66 US dollars Answer

5 0
3 years ago
The standard configuration for an Arizona license plate is 3 digits (0 - 9) followed by 3 letters (of 26). If you can not repeat
Anna71 [15]

Answer:

11232000 plates can be made.

Step-by-step explanation:

The order of the digits and of the letters is important. For example, ABC is a different configuration than CBA. So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this question:

3 digits from a set of 10(there are 10 digits from 0 to 9).

3 letters from a set of 26. So

Total:

T = P_{(10,3)} \times P_{(26,3)} = \frac{10!}{(10-3)!} \times \frac{26!}{(26-3)!} = 11232000

11232000 plates can be made.

5 0
3 years ago
There are 8 competitors in each ring for a tae kwon do tournament. If there are 96 competitors in the tournament, how many rings
Marysya12 [62]
All you need to do is divide 96 by 8 and you get 12 as your answer
5 0
3 years ago
Read 2 more answers
Help help help help me pls !,!,!,
Len [333]

Answer:

96

Step-by-step explanation:

First, you find the area of RPQ using 1/2×base×height. That is, 1/2×6×8. And the answer is 24. Then you multiply 24 by 4 to get the area of all the sides excluding the base to get 96.

8 0
3 years ago
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