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Lina20 [59]
3 years ago
11

Which number system BEST describes this set? {-10, 0, 28 7 , 102.9} A) integers B) natural numbers C) rational numbers D) irrati

onal numbers
Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0
Answer: The best choice would be: Rational Numbers

The 4 numbers in this list only all belong to the set of rational numbers. All of the other sets can be crossed off.

First, 102.9 is not an integer, so we can't select choice A.

Second, 0 is not a natural number, so we can't select choice B.

Third, none of the numbers are irrational, so we can't select choice D.

The only choice left is choice C - rational numbers.
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angles x y z are all acute because they are less than 90 degrees

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4 0
3 years ago
Read 2 more answers
13 and 4/87 to the nearest half
Arte-miy333 [17]

Answer:

13

Step-by-step explanation:

4/87 is around 0.046

13+0.046=13.046

13.046 to the nearest half is 13

3 0
2 years ago
A ball is thrown straight up from the top of a building that is 400 ft high with an initial velocity of 64 ft/s. The height of t
otez555 [7]

Answer:

The time(s) the ball is higher than the building: Interval (0,4)

Step-by-step explanation:

s(t)=-16t^2+64t+400

Determine the time(s) the ball is higher than the building:

s(t)>400

-16t^2+64t+400>400

Subtracting 400 both sides on the inequality:

-16t^2+64t+400-400>400-400

-16t^2+64t>0

Multiplying the inequality by -1:

(-1)(-16t^2+64t>0)

16t^2-64t<0

Fatorizing: Comon factor 16t:

16t(16t^2/16t-64t/16t)<0

16t(t-4)<0

t is greater than zero:

t>0→t-4<0→t-4+4<0+4→t<4

Then t>0 ant t<4:

Solution = (0, Infinite) ∩ (-Infinite, 4)

Solution = (0,4)


7 0
3 years ago
What is 4 min;seconds in a unit
mart [117]
4 mins is 240 seconds
8 0
3 years ago
The lions won 16 games last year. This year they won 20 games what is the percent increase
AnnZ [28]

The percent increase is 25%.

Step-by-step explanation:

Given,

Games won last year = Old value = 16

Games won this year = New value = 20

Difference = New value - Old value

Difference = 20-16 = +4

The positive sign indicates increase.

Percent increase = \frac{Difference}{Old\ value}*100

Percent increase = \frac{4}{16}*100

Percent increase= \frac{400}{16}

Percent increase = 25%

The percent increase is 25%.

Keywords: percentage, division

Learn more about division at:

  • brainly.com/question/10708697
  • brainly.com/question/10710410

#LearnwithBrainly

6 0
3 years ago
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