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2 years ago

To which subsets of the real numbers does the number 22 belong?

Mathematics

1 answer:

Svetllana [295]2 years ago

3 0

Hey there!
The subsets include:
Integers
Rational numbers
Natural Numbers
Whole numbers
Hopefully this helps!

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Hi guys I need help..... <br> How do you move on??

erma4kov [3.2K]

Answer:

There is no specific set way to move on.

Step-by-step explanation:

In most cases, I would say: time. With time wounds will fade; but scars will always be left behind. Do stuff that distracts you, like hobbies and devote yourself to them. Soon enough you'll forget what even happened to you.

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2 years ago

An employee worked for 8 hours on 2 days, 6 hours on 1 day, and 4 hours on 2 day

choli [55]

Answer:

A) 6.0

Step-by-step explanation:

First, total amount of hours, since average is sum of the numbers by how many numbers there is.

Day 1=8x2 hr

Day 2=6x1 hr

Day 3=4x2 hr

which is, 16+6+8=30

then divide 30 by how many days there is, which is 5 days.

30/5=6

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1 year ago

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rusak2 [61]

Answer:

189ish

Step-by-step explanation:

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2 years ago

Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$