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Lorico [155]
2 years ago
5

In question 1, you found the cubes of both positive and negative numbers. Does x3 = 8 have two solutions as x2 = 4 does? Why or

why not?
Mathematics
1 answer:
Temka [501]2 years ago
4 0
No it doesn’t. This is because if you have a negative number and multiply it by itself 3 times, you’ll still have a negative number (-1 times -1 times -1 is still -1). On the other hand, if you take a negative number and multiply it by itself twice (-1 times -1) you’ll have the answer that is positive (1).
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In a class of 20 students, the number of boys was the number of girls. How many girls were in the class?
Zielflug [23.3K]

Answer:

10

Step-by-step explanation:

Because if the number of girls is the same as the boys you just devide 20 by 2 and get 10

3 0
3 years ago
1.) Determine whether each number is irrational or rational.
nalin [4]

Answer:

1/3 is rational its nonterminating but it repeats

6.99999 rational its nonterminating and it repeats also

7.48331 is irrational because its non terminnating  and it does not repeat

Step-by-step explanation:

8 0
3 years ago
Write a linear equation for slope: 0; y-intercept: -8
Novosadov [1.4K]

Answer:

x = -8

Step-by-step explanation:

Since there is no slope, there is no need for a y variable to appear in your final equation. The graph will cross y = -8 horizontally. So therefore, x = -8

This is a pretty short explanation, but there's not too much to it. Hope this helped :)

5 0
3 years ago
Need steps on how to factor 3x^4 + x^3 + 6x^2 + 2x
ella [17]

Answer:

3x times 3x times 3x times 3x + x^3 + 3x times 2x times 3x times 2x + 2x

or

x^3 + 2x^3 + 3x^6

Step-by-step explanation:

3x^4 + x^3 + 6x^2 + 2x

3x times 3x times 3x times 3x + x^3 + 6x times 6x + 2x

3x times 3x times 3x times 3x + x^3 + 3x times 2x times 3x times 2x + 2x

x^3 + 2x^3 + 3x^6

5 0
3 years ago
Sam has an I-tunes card to purchase music after purchasing 7 songs his balance on the card is 41.25. The balance of the card was
NNADVOKAT [17]

Answer:

93.75

Step-by-step explanation:

well think about this he purchased 7 songs then he is left with $ 41.25 on his card then he bought 18 songs for 27.50 would tell you how much was used what it wants is for you to figure out the starting number using the  equation 7+18= 25 and 41.25+27.50= 68.70. which would make 68.70+ 25= 93.75  

6 0
3 years ago
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