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ozzi
3 years ago
12

In which set are all of the numbers solutions to the inequality x < -3?

Mathematics
1 answer:
Murljashka [212]3 years ago
6 0

Don’t you just love inequalities?  Of course I can only hear you saying “not really…inequalities stink!”  Well I know you may not like inequalities but you need to know how to work with them.   All right let me stress some points:

* the solution to an inequality is more than a single number;  inequalities have solution sets (many/infinite number of solutions).   As an example lets consider the inequality   x > 5  what can the value of x be?  i.e. what numbers are greater than 5? clearly an infinite amount of numbers are greater than 5 so we need to express the solutions to inequalities in a different way other than writing out all the numbers greater than 5 – that would take a lot of paper and with global warming….you get the idea.    So to deal with this little issue we graph the solution of an inequality on a number line.

other important points:

*  we simplify inequalities using the same steps as solving equations

* when dividing/multiplying both sides of an inequality by a negative number you need to reverse the inequality symbol; example  >  would turn into < .

* when graphing your solution <, > symbols use open circles;  <=,  >= symbols fill in the circle.

* make sure you can solve linear equations before taking on inequalities- good luck and may the force be with you!!

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Hey yall! i dont need the math just the answers!
Inessa05 [86]

Answer:

13A. 14, 48, 50

13B. both mulitpled by 2?

13C. 56, 125

14. Yes

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A small combination lock on a suitcase has 55 ​wheels, each labeled with the 10 digits 0 to 9. How many 55 digit combinations ar
den301095 [7]
Suppose a_n is the number of possible combinations for a suitcase with a lock consisting of n wheels. If you added one more wheel onto the lock, there would only be 9 allowed possible digits you can use for the new wheel. This means the number of possible combinations for n+1 wheels, or a_{n+1} is given recursively by the formula

a_{n+1}=9a_n

starting with a_1=10 (because you can start the combination with any one of the ten available digits 0 through 9).

For example, if the combination for a 3-wheel lock is 282, then a 4-wheel lock can be any one of 2820, 2821, 2823, ..., 2829 (nine possibilities depending on the second-to-last digit).

By substitution, you have

a_{n+1}=9a_n=9^2a_{n-1}=9^3a_{n-2}=\cdots=9^na_1=10\times9^n

This means a lock with 55 wheels will have

a_{55}=10\times9^{54}

possible combinations (a number with 53 digits).
7 0
3 years ago
You flip a coin, and then roll a number cube twice. Find the probability of the event.
uysha [10]

No. It doesn’t, the square root is different than the approximate length.

3 0
3 years ago
What is the equation of the line x–3y=18in slope-intercept form?
masha68 [24]

Answer:

the answer would be done like this

Step-by-step explanation:

you have to get y by itself so you would need to move the x to the right of the equal sign

once you move anything to the opposite side it switches, so positive becomes negative vice versa

-3y=-x+18

you need to make sure you have positive 1 y so you would divide y by -3 to make it 1

everything else is multiplied by -3 as well

so the answer would be y=⅓x-6

3 0
2 years ago
Read 2 more answers
PLS HELP!! A student randomly guesses the answers to two true-false questions. Describe and correct the error in finding the pro
Nitella [24]

Answer:

The student was wrong. The probability is actually 1/4.

Step-by-step explanation:

Let's say you have question A and question B. You could have incorrect on A, and incorrect on B. Or, you could have incorrect on A, but a correct on B. Or, you could have an incorrect on B, but a correct on A. Or, both could be correct. <em><u>Since there are 4 different possibilities, the actual probability is 1/4.</u></em>

6 0
2 years ago
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