MATHEMATICS HIGH SCHOOL

Which expression is undefined? A.0 ÷ 5

B.(3 - 3)
_____
7


C. 8
_____
(-2+2)


D. (0 - 12)
_____
-6​

Answers

Answer 1
Answer:

Answer: C

Work: So, after you simplify that equation, it's 8/0. You Cannot divide zero like that. You can divide 0/8, but you can't with 8/0. I hope this wasn't to confusing, and Happy Holidays! :)

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A swimmer swam 48 kilometers in d days. What is the value of d if the swimmer swam an average of 3.2 kilometers daily?

Answers

D = 15!

48 kilometers divided by 3.2 kilometers = 15. To prove this, 3.2 multiplied by 15 equals 48. 

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Answers

A linear function is a function whose highest power of the variables is 1.

The length of a field in feet is a function f(n) of the length nin yards. Write a function rule for this situation.

Answers

Given:

The length of field is n yards.

The length of a field in feet is a function f(n).

To find:

The function rule for this situation.

Solution:

We know that,

1 yard = 3 feet

Using this conversion, we get

n yard = 3n feet

The length of field is n yards. So, the length of the field is 3n feets.

The length of a field in feet is a function f(n). So,

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In a​ week, 12 hens laid 60 eggs. What is the unit rate for eggs per​ hen? The unit rate is ______ ​egg(s) per hen

Answers

Answer:

5 eggs per hen is the answee

Answer:

5

Step-by-step explanation:

I divided 60 by 12

The radius of the earth’s orbit is 150,000,000,000 meters. What is this number in scientific notation?

Answers

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Please help me... I don't understand why I got it wrong(

Answers


You did the first step correctly ... even admirably !
You zeroed in on finding 'x' with laser-like precision, and
you knocked it out of the park.
Then, from there ... you fell off the deep end.

There's no reason that  (3x + 18)  has to be equal to 2(y+6).
In fact, they add up to 180°, so you could have used that
and solved for 'y'.

BUT ... (5x + 2) and 2(y+6) are "vertical angles", and THEY
are equal.

So   2 (y+6) = 5x + 2

       2 (y+6) = 102

          (y+6) = 51

           y       = 45 .
 
You got the answer y=78 by substituting x=20 into the top angle, 3x+18.
But the angle 3x+18 is not equal to the angle with the y variable.
They are supplementary angles (equal 180) but are not necessarily equal.
The angle that equals 2(y+6) is the angle opposite to it, 5x+2 (Vertical angle theorem).
So you should have substituted 20 into 5x+2
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