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gayaneshka [121]
3 years ago
15

Which of these is not a possible r-value?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
7 0

Answer:

a. 1.75

Step-by-step explanation:

r values, or the correlation coefficient  must be between -1 and 1, inclusive

-1 is a perfect negative correlation

0 is no correlation

+1 is a perfect positive correlation

1.75 is not between -1 and 1

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Pls answe quick and correctly
andriy [413]

Answer:

9890

Step-by-step explanation

7×43×30+5×4×43=9890

4 0
2 years ago
Pls help me solve 5.a and 5.b
Tamiku [17]
You would add both totals since they said how much was the bill includingall the totals. So $192.77+ 48.19= 240.96
Since there is 12 people that need to chip in each, you would divide that total by 12.
240.96/12 = $20.08 each person would have to pay
Hope this helped!
3 0
3 years ago
The ratio of two numbers is 4:9. When 5 is subtracted from each of them the new ratio becomes 3:8. Find the numbers.​
natta225 [31]

Answer:

FIRST NUMBER IS 20

AND

SECOND NUMBER IS 45

Step-by-step explanation:

LET THE RATIO BE X

FIRST NUMBER = 4X

SECOND NUMBER = 9X

A/Q,

=}4X - 5 / 9X - 5 = 3 / 8

CRISS CROSS,

=}8 ( 4X - 5 ) = 9X - 5 ( 3 )

=}32X - 40 = 27X - 15

=}32X - 27X = - 15 + 40

=}5X = 25

=}X = 25 / 5

=}X = 5

THEREFORE,

FIRST NUMBER

=} 4X

=} 5 × 4

=} 20

SECOND NUMBER

=} 9X

=} 5 × 9

=} 45

8 0
3 years ago
A teacher randomly selects one student from a group of students. 12 students are wearing a black shirt, 8 are wearing a red shir
Blababa [14]
12+8+8=28
8 students are wearing a blue shirt so the probability is 8/28
7 0
3 years ago
Read 2 more answers
Hiya Guys , Can you help me if you do one answer each Ill give you a thanks and Stars / Rating and A Brainlist , please help !!!
Volgvan

Answer:

I don't know I'm sorry I will tell you another answer asks me to

6 0
2 years ago
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