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Snezhnost [94]
2 years ago
14

Determine whether the solutions to the equations are rational or irrational.

Mathematics
1 answer:
statuscvo [17]2 years ago
8 0

Answer:

Step-by-step explanation:

x^3 = -216 yields 1 real, rational solution:  6

x^3 = 25 yields 1 real solution, but this solution is irrational:

∛-25 = -∛25 ≈ -2.92

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Which of the factors of 120 are composite numbers?
Pani-rosa [81]

Answer:

Find a common prime factor in each of these pairs of numbers

a.21 and 411

6 0
2 years ago
John has a die and a coin. The die is labeled 1 through 6 and the two sides of the coin are heads and tails. The tables below sh
Alenkasestr [34]

Answer:

n = 60

Step-by-step explanation:

Total outcomes, while tossing a coin are 2, given as:

{Heads, Tails}

The probability of getting a heads up, while tossing the coin is:

P(Heads) = Favorable Outcome/Total Outcomes

P(Heads) = 1/2 = 0.5

Now, the total outcomes, while rolling a die are 6, given as:

{1, 2, 3, 4, 5, 6}

5 of these numbers are factors of 12, which are:

{1, 2, 3, 4, 6}

Thus, the probability of getting a factor of 12, while rolling a die is:

P(Factor of 12) = Favorable Outcome/Total Outcomes

P(Factor of 12) = 5/6 = 0.83

So, the probability of getting both heads and factor of 12 will be:

P(Heads and Factor of 12) = P(Heads ∪ Factor of 12)

P(Heads and Factor of 12) = P(Heads) * P(Factor of 12) = 0.5 * 0.83

P(Heads and Factor of 12) = 0.417 = 41.7%

So, for 144 trials, the number of trials in which we get heads and factor of 12, are given by:

n = P(Heads and Factor of 12) * 144

where,

n = no. of trials John would expect to roll a number on the die that is a factor of 12 and toss a coin that lands heads-up out of next 144 trials

n = 0.417 * 144

<u>n = 60</u>

7 0
3 years ago
Students were asked to write 6x5 + 8x - 3x3 + 7x7 in standard form.
dimulka [17.4K]

Answer:

7x^{7} + 6x^{5} - 3x^{3} + 8x

Step-by-step explanation:

Students are asked to write 6x^{5} + 8x - 3x^{3} + 7x^{7} in the standard form.

Now, in the standard form of a polynomial the highest power of the variable takes the leftmost position and the lowest power of the variable takes the rightmost position and the power of variable decreases from left to right.

Therefore, the standard form will be 7x^{7} + 6x^{5} - 3x^{3} + 8x. (Answer)

3 0
2 years ago
Which of the following is a rational number? I give 20 pts!
LenKa [72]

Answer:

It's b. 100

Step-by-step explanation:

10 x 10= 100 = rational number, other include a series of numbers that cannot be written down.

Sorry if this is wrong hope I did the math right. :)

4 0
3 years ago
Use the distributive property to multiply. Simplify your Answer.<img src="https://tex.z-dn.net/?f=%283y%20%2B%205%29%283y%5E%7B2
trapecia [35]
9y^3+6y^2-18y+15y^2+10y-30
9y^3+21y^2-8y-30
3 0
3 years ago
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