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Reptile [31]
4 years ago
6

Alvin wants to know what his average paddling rate was for a canoe trip to a campsite. On the way there it took him 7 hours agai

nst a river current of 2 km/hr. On the way back, the same distance took him 5 hours with the same 2 km/hr current. Let r= Alvin’s average paddling rate. Express the rates against the current and with the current in terms of r to complete the below table.

Mathematics
1 answer:
borishaifa [10]4 years ago
8 0
Whoa .. that’s a lot
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The Mega Millions lottery is available in multiple states including New Jersey. A Mega Millions ticket consists of 5 different n
shutvik [7]

Using the combinations formula, the probability that you'll win the jackpot is given by:

A. 1/302575350.

<h3>What is the combination formula?</h3>

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by:

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

5 numbers are selected from a set of 70, along with one number from a set of 25, hence the number of combinations is given by:

C_{70,5}C_{25,1} = \frac{70!}{5!65!} \times \frac{25!}{1!24!} = 302575350

Only one combination is correct, hence the probability of winning is given by:

A. 1/302575350.

More can be learned about the combination formula at brainly.com/question/25821700

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6 0
2 years ago
For which equations is 8 a solution? Select the four correct answers.
sveta [45]

Answer:

The answers include

x + 2 =10

x - 4 = 4

3x = 24

Start Fraction x Over 8 End Fraction = 1

Step-by-step explanation:

x + 2 = 10; 8 + 2 = 10

x - 4 = 4; 8 - 4 = 4

3x = 24; 3(8) = 24

Start Fraction x Over 8 End Fraction = 1; 8/8 = 1

5 0
3 years ago
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What are the first two answers? #16 and #17
Luden [163]
Answer to number 16 is 27 and 17 is 2
5 0
4 years ago
Find x<br> 5[x^2]+5[x]-x^2-x=2004
a_sh-v [17]

The answer is either x=\frac{-1}{2}+\frac{1}{2}\sqrt{2005}\\ or x=\frac{-1}{2}+\frac{-1}{2}\sqrt{2005}

To solve: Let's solve your equation step-by-step.

5x2+5x−x2−x=2004

Step 1: Simplify both sides of the equation.

4x2+4x=2004

Step 2: Subtract 2004 from both sides.

4x2+4x−2004=2004−2004

4x2+4x−2004=0

Step 3: Use quadratic formula with a=4, b=4, c=-2004.

x= −b±√b2−4ac /2a

x= −4±√32080 /8

x=\frac{-1}{2}+\frac{1}{2}\sqrt{2005}\\ or x=\frac{-1}{2}+\frac{-1}{2}\sqrt{2005}

4 0
3 years ago
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53 26 11 35 16 61 47 39 50 46 58 10 <br> what is the mean average
bonufazy [111]

Answer:

37.66

Step-by-step explanation:

7 0
4 years ago
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