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3 years ago

The empty set (or null set) is a subset of _____ set(s

Mathematics

1 answer:

sashaice [31]3 years ago

4 0

The empty set is a subset of EVERY set

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Solve each inequality and graph it’s solution

asambeis [7]

$13 < x+12\leq20\ \ \ \ |-12\\\\1 < x\leq8\to x\in\left(1,\ 8\right>\\---------------------\\33\geq5+7x\geq12\ \ \ \ |-5\\\\28\geq7x\geq17\ \ \ \ |:7\\\\4\geq x\geq\dfrac{17}{7}\\\\4\geq x\geq2\dfrac{3}{7}$

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3 years ago

Two less than 3 times a number is the same as the number plus 10.

Neporo4naja [7]

10-7= 3 3+7=10 because if u subtract 10 by 7 gives u 3

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3 years ago

A circle has a circumference of 34 54 cm. What is the area of the circle to the nearest whole centimeter? Use 3.14

inysia [295]

Answer:

Step-by-step explanation:

We know that the Circumference = 3454 cm

And we also know that the formula for the Circumference of Circle is,

$2\pi \times r$

So we can put the equation this way,

$3454 = 2\pi \times r$

So we can solve for 'r'

$3454 = 2 \times 3.14 \times r \\ 3454 = 6.28r \\ r = \frac{3454}{6.28} \\ r = 550$

Now we have radius and we can solve for the area of the circle,

$\pi \times {r}^{2}$

$3.14 \times 550 \times 550 \\ = 949850$

We can convert this to meter,

9498.5 m

I am not sure if this is correct just let me know thanks :)

8 0

3 years ago

Please help answer and explain am begging you

Airida [17]

1,6,7 are positive
2,9 are negative
3,4,5,8 are undefined

7 0

3 years ago

Read 2 more answers

1/4 plus 4/9 divided by -2/3<br> NO MIXED NUMBERS

Mrac [35]

Answer:

The answer is -.17 and that is rounded to the nearest hundredth.

Step-by-step explanation:

Let me know if you need it!

7 0

3 years ago