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3 years ago

8

Identify all the sets to which the number 3.1214122144 belongs

1 answer:

marishachu [46]3 years ago

4 0

The set of numbers that 3.1214122144 belongs to is called the Irrational numbers. We know this because this number it is not an integer, since it has a fractional part and also is not a whole number. Rational numbers can be decimals but they are terminating decimals. This number is irrational because <span>is a non ending decimal number.</span>

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Which is true about the solution to the system of inequalities shown? y less than or equal to 1/3x-1 and y less than or equal to

tekilochka [14]

Y≤x/3-1 AND y≤x/3-3

So for BOTH inequalities to be true:

y≤x/3-3

4 0

3 years ago

In a highschool, 2/5 of the boys make up 250 students. how many boys are there in the high school?

stiv31 [10]

Answer:100 boys

Step-by-step explanation:

250 / 5 is 50.

50 x 2 is 100.

3 0

2 years ago

Help please:Suppose that x and y inversely, and x=10 when y=8 write the function that models the inverse variation

jarptica [38.1K]

SOLUTION

From the question, we are told that y varies inversely as x

This is mathematically written as

$\begin{gathered} y\propto\frac{1}{x} \\ \propto\text{ is a sign of proportionality } \end{gathered}$

Now, we will remove the proportionality sign and replace it with equal to sign =

If we do this, we will intoduce a constant k

$\begin{gathered} y\propto\frac{1}{x} \\ y=k\times\frac{1}{x} \\ y=\frac{k}{x} \end{gathered}$

So we have the formula

$y=\frac{k}{x}$

We will substitute the values of x for 10 and y for 8 into the formula to get k, we have

$\begin{gathered} y=\frac{k}{x} \\ 8=\frac{k}{10} \\ k=8\times10 \\ k=80 \end{gathered}$

Now, we will substitute k for 80 back into the formula to get the inverse function, we have

$\begin{gathered} y=\frac{k}{x} \\ y=\frac{80}{x} \end{gathered}$

Hence the answer is option C

7 0

1 year ago

Pls help picture provided :}

Liono4ka [1.6K]

Answer:

not sure but positive 3?

4 0

2 years ago

Read 2 more answers

If a box has a surface area of 680 and the length and width are 10. What is the height?

Molodets [167]

10x10=100

680/100=6.8

10x10x6.8=680

the answer is 6.8

8 0

3 years ago