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Keith_Richards [23]
3 years ago
6

Is -9 a irrational number

Mathematics
1 answer:
GalinKa [24]3 years ago
4 0
-9 is a rational number. Rational numbers are numbers that can’t be written as a simple fraction like pi (3.14...etc)
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Please help I'm almost out of time ​
Serhud [2]

Answer:

3/2

Step-by-step explanation:

move the 3x to the other side and divide it by 2

3 0
3 years ago
Find the area of the trapezoid.
riadik2000 [5.3K]

Answer:

36

Step-by-step explanation:

(Top bottom plus bottom bottom )× height divided by 2

(4+6)*6÷2=36

5 0
3 years ago
Read 2 more answers
Two groups went bowling. Here are the scores from each group.
vladimir2022 [97]

Answer:

Group A has greater variability

Step-by-step explanation:

Group A: 80, 100, 190, 110, 70, 90, 130

The variability of group A data :

Taking the range :

Maximum  = 190 ; Minimum = 70

Range = Maximum - Minimum ; 190 - 70 = 120

Group B : 50, 110, 100, 120, 107, 140, 150

The variability of group B data :

Taking the range :

Maximum  = 150 ; Minimum = 50

Range = Maximum - Minimum ; 150 - 50 = 100

Hence, Group A has greater variability

6 0
3 years ago
An airplane pilot over the Pacific sights an atoll at an angle of depression of 5. At this time, the horizontal distance from th
Vlad1618 [11]
X=4629*tan(5)=404.98
=405 meters
8 0
3 years ago
Read 2 more answers
The number of ways in which 4 squares can be chosen at random on a chess board such that they lie on a diagonal line?.
wariber [46]

The number of ways is 364 if the number of ways in which 4 squares can be chosen at random.

<h3>What are permutation and combination?</h3>

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

It is given that:

On a chessboard, four squares are randomly selected so that they are adjacent to each other and form a diagonal:

The required number of ways:

= 2(2[C(4, 4) + C(5, 4) + C(6, 4) + C(7, 4)] + C(8, 4))

= 2[2[ 1 + 5 + 15+35] + 70]

= 364

Thus, the number of ways is 364 if the number of ways in which 4 squares can be chosen at random.

Learn more about permutation and combination here:

brainly.com/question/2295036

#SPJ4

5 0
2 years ago
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