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Anna007 [38]
3 years ago
8

Find the sum: -21 + (-13) + (-9). A. -43 B. -25 C. 1 D. 4

Mathematics
2 answers:
Akimi4 [234]3 years ago
4 0
The answer is A. -43. All of thos additions of minus values are made substraction afterwards.
Alja [10]3 years ago
3 0
If you would like to solve - 21 + (- 13) + (- 9), you can calculate this using the following steps:

- 21 + (- 13) + (- 9) = - 21 - 13 - 9 = - 43

The correct result would be A. - 43.
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Using the figure below, select the two pairs of alternate interior angles.
algol [13]

Answer:

B :point 2 and point 3

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
For a large data set of a average student grades, the third quartile Q3 is found 78.5 . What does the mean when we say that 78.5
xz_007 [3.2K]

Step-by-step explanation:              

We are told that for a large data set of a average student grades, the third quartile Q3 is found 78.5.

Since we know that third quartile represents the number such that 75% of the data is less than this number. Third quartile is the middle value between median and the highest value of a data set. Third quartile is also known as upper quartile. Third quartile splits lower 75% data from highest 25% of data.

Therefore, third quartile represents that 75% of student grades are less than 78.5 and 25% of students grades are greater than 78.5.


3 0
3 years ago
PLEASE ANSWER THIS IT'S 30 POINTS
sergey [27]

Answer:

Step-by-step explanation:

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5 0
2 years ago
Suppose you are given that p = 2q+1 and that p = 8.
iVinArrow [24]

Answer:

We conclude that the following statements can be proved such as:

  • 2q+1 = 8    

Step-by-step explanation:

Given the expression

p = 2q+1

Given

p = 8

IF WE SUBSTITUTE p=2q+1 in p=8

Now, substituting p = 2q+1 in the expression p=8

p = 8

2q+1 = 8         ∵ p = 2q+1

Therefore, we conclude that the following statements can be proved such as:

  • 2q+1 = 8    
3 0
3 years ago
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