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juju323261
21.08.2019 •
Mathematics
13. which best describes the classification
for the following number set?
{ 3, 12, 35, 56}
18. v
for tt
a. rational numbers
b. whole numbers and rational numbers
c. integers and whole numbers
d. rational numbers, whole numbers,
and integers
Solved
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Ответ:
Option d.
Step-by-step explanation:
We know that:
- Integers contains positive numbers, negative numbers and zero.
- A rational number is that number that can be written in the following form:
Where "a" and "b" are integers (
).
- A Whole number is any of the numbers {
}
Given the number set:
{
}
These numbers are Rational numbers, because:
And, since they are positive, they are Whole numbers and Integers.
Ответ:
In this case, we are looking for the hypotenuse. The question tells us the distance of one leg, 7 ft. Since the angle for the ladder and the wall is also 45 degrees, the second leg must also be 7 ft.
Plug this into the pythagorean theorem (a^2+b^2=c^2) where c is the hypotenuse.
49+49=c^2
98=c^2
c=approx 9.899
The final answer is about 9.899 ft