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stiks02 [169]
3 years ago
5

Steve earned a 96% on his first math test, a 74% on his second test, and a 85% on his third test. What is his test average?

Mathematics
1 answer:
masya89 [10]3 years ago
6 0

Answer:

The average is 85%

Step-by-step explanation:

To find the average, we add up all the numbers.  Then we divide by the number of numbers

Average = (96+74+85) / 3

                 = 255/3

                 =85

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The [Detroit] Pistons did not lose because of the lack of ability. They are an all-around better team. They lost because of the
Alex Ar [27]

Answer:

The Pistons lost due to the law of averages

Step-by-step explanation:

Premise 1: The Detroit Pistons are a better all-around team than the San Antonio Spurs

Conclusion 1: The Pistons did not lose [ the 2005 NBA finals ] due to lack of ability.

Premise 2: The Pistons will beat the Spurs two out of three times, and the Spurs will beat one out of three times

Premise 3: The Pistons won the series ' 5th and 6th games — two in a row, and if they had won the final game they would have won three out of three.

Conclusion 2: The Pistons lost due to the law of averages

8 0
3 years ago
10. Given a = 7, b = 6, and c = 10, use the Law of Cosines to solve for A. Round your answer to the nearest degree.
tia_tia [17]

Answer:

10) 44° (nearest degree)

11) 136.6 units² (nearest tenth)

12) 47.8 units² (nearest tenth)

Step-by-step explanation:

Please see the attached pictures for the full solution.

6 0
3 years ago
For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?
STatiana [176]

Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

z=\frac{x-\mu}{\sigma}

Top 60% means greater than 40%.

Let us find z-score corresponding to normal score to 40% or 0.40.

Using normal distribution table, we got a z-score of -0.25.

Upon substituting our given values in z-score formula, we will get:

-0.25=\frac{x-500}{100}

-0.25*100=\frac{x-500}{100}*100

-25=x-500

-25+500=x-500+500

x=475

Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.

3 0
3 years ago
Roger completed a probability experiment with a coin. He flipped the coin 32 times, and it landed on tails eight times. He looke
Vsevolod [243]
This is easy!
The overall amounts of flips is 32, which puts it on the bottom. It gave you a number of times you flipped it and received 8.

Giving us 8/32
which is 1/4 and in percentage form it is 25%
6 0
3 years ago
If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question... ​
solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

  • 3x - 2y = 9
  • 27x^3 - 8y^3 = 1377

And we need to find the prove that ,

  • xy = 4

We know a identity as ,

  • (a-b)^3 = a^3-b^3-3ab(a-b)

On cubing both sides of the given equation,

  • (3x-2y)^3 = 9^3

Simplify and then substitute ,

  • 27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729

  • 1377 - 18xy (9) = 729

  • 162xy = 1377-729

  • xy =\dfrac{648}{162}

  • xy = 4

Hence Proved !

8 0
3 years ago
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