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sergeinik [125]
2 years ago
13

Answer the following:4-(-3),-2-(-7),-9-(-4)

Mathematics
2 answers:
Elina [12.6K]2 years ago
4 0

the first one is 7

the second one is 5

the third one is -5

Romashka [77]2 years ago
3 0

Answer:

4 – (– 3) = 4 + 3 = 7

-2 – (– 7) = -2 + 7 = 5

-9 – (– 4) = -9 + 4 = -5

<u>-TheUnknownScientist</u><u> 72</u>

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If you know that nine to the third power = 729, describe how to find nine to the fourth power without having to multiply four 9s
Alecsey [184]
Remember
(x^m)(x^n)=x^{m+n}

so
(9^3)(9^1)=9^{3+1}=9^4
9^3=729
so

(729)(9)=9^4
that's how yo do it, muliply 9 by 729
5 0
4 years ago
A equals 12 B equals 5 C equals
Damm [24]

Answer: 17

Step-by-step explanation:

A+B=C

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7 0
3 years ago
2. When Professor Rodríguez conducted the proofreading study, the average number of errors detected in the print and computer co
Amanda [17]

Answer:

Answer in explanation

Step-by-step explanation:

In this question, we are asked to determine what could have happened if the same experiment carried out by two academicians turned out to five different results statistically.

What majorly could have caused this is the difference in sample size. In a scientific experiment, the term sample size refers to how many individual observations are present.

Due to this difference in sample size, an experiment conducted with more sample size is expected to yield a greater amount of degree of freedom.

Thus, the small differences between the groups of observations are likely to be statistically significant.

3 0
4 years ago
What is the area of a rectangle 8 units long and 2 units wide?
asambeis [7]

Answer:

16 units

Step-by-step explanation:

The formula for area of a rectangle is Area = length * width

The problem statement gives the following information:

Length = 8 units

Width = 2 units

Plugging in we get

Area = 8 * 2

Area = 16 units

4 0
4 years ago
2x+7-5x&lt;28 inequality
alisha [4.7K]

Answer:

3x / 2

5x/9 + 10

6x - 4

x = 3y + 8

Associative Pr

operty of addition

3H + 4D + 5C = 85

(6 + t) / 3x

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1 =< x <= 10

x = 6 or x = 1

x > 7

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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