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IgorC [24]
3 years ago
7

How many terms are in the algebraic expression Negative 2 a minus b? 2 3 4 5

Mathematics
2 answers:
Dimas [21]3 years ago
5 0

Answer:

Step-by-step explanation:

Alex_Xolod [135]3 years ago
4 0

Answer:

2 terms

Step-by-step explanation:

-2 - b is a binomial, having two terms

a plus or minus sign separates terms

3x represents one term

3 + x represents two terms

x - y + 8 represents three terms

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5. What is the solution to the linear-quadratic system of equations?
ch4aika [34]

Answer:

c y=2x^2

Step-by-step explanation:

8 0
2 years ago
Please help me interpret the p-value!
alexandr402 [8]

The correct interpretation of the p-value is given by:

B If the average battery life really is 5 hours, then a sample of 10 observations having a sample mean of 4.25 hours or lower would only occur about 3.8% of the line.

<h3>How to find the p-value of a test?</h3>

It depends on the test statistic z, as follows:

  • For a left-tailed test, it is the area under the normal curve to the left of z, which is the p-value of z.
  • For a right-tailed test, it is the area under the normal curve to the right of z, which is 1 subtracted by the p-value of z.
  • For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is 2 multiplied by 1 subtracted by the p-value of z, which means that the p-value for a two-tailed test is twice the p-value of a one-tailed test.

In this problem, a left-tailed test is used, as we are testing if the mean is less than 5 hours.

The sample mean from the 10 times was of 4.25, and the p-value is of 0.038, which means that the area to the left of Z under the normal curve is of 0.038, that is, a sample mean of 4.25 hours or lower would only occur about 3.8% of the line, hence option B is correct.

You can learn more about p-values at brainly.com/question/13873630

3 0
2 years ago
Someone please answer this
babymother [125]

Answer:

9.4m is the answer.

Step-by-step explanation:

a = 8m

b = 5m

c = ?

According to the Pythagoras theorem,

a² + b² = c²

8² + 5² = c²

64 + 25 = c²

89 = c²

c = 9.433

Rounding off,

c = 9.4m

4 0
3 years ago
A survey of 500 high school students was taken to determine their favorite chocolate candy. Of the 500 students surveyed, 64 lik
Lyrx [107]

Answer:

466 student

Step-by-step explanation:

The number of students that like at most 2 kinds of these chocolate candies can be gotten from subtracting the number of students that like more than 2 candies from the total number of high school students.

Since 34 like all three kinds of chocolate candy, hence:

Number of students that like at most 2 kinds of these chocolate candies = 500 - 34 = 466

466 students like at most 2 kinds of these chocolate candies

6 0
3 years ago
What is the answer to the equation <br> (4 x 6) - 25 + 1
Mashutka [201]
Zero because im smart
5 0
2 years ago
Read 2 more answers
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