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Masja [62]
3 years ago
9

Please help will give brianliest. Find QR

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

I think its 4.7

Step-by-step explanation:

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Jovian decided to collect data to determine if students' heights and their shoe sizes are correlated. He determined the data to
Phantasy [73]

Answer:

A strong positive correlation

Step-by-step explanation:

A strong correlation when the correlation coefficient is close to 1 or -1. If the correlation coefficient is close to positive 1, then it is a positive strong correlation coefficient. If the correlation coefficient is close to negative 1, then it is a negative strong correlation coefficient.

7 0
3 years ago
Solving a System: No Solution
umka21 [38]

Answer 15

Step-by-step explanation:

21 minus 5 is 16 munus 1 is 15 duh

6 0
3 years ago
Hey guys i need help plz will give brainlist
nadya68 [22]

Step-by-step explanation:

Effective resistance in the 30Ω and 40Ω parallel circuit = 1 / (1/30 + 1/40) = 120/7 Ω.

20Ω + 10Ω = 30Ω

Effective resistance in the 50Ω and (20Ω + 10Ω) parallel circuit = 1 / (1/50 + 1/30) = 75/4 Ω.

Now we can add the resistances up:

Effective resistance for circuit

= 120/7 Ω + 75/4 Ω = 1005/28 Ω.

Hence I = V / R

= 9.0V / (1005/28 Ω) = 0.25A. (2s.f.)

5 0
3 years ago
If a multiple regression analysis is based on 10 independent variables collected from a sample of 125 observations, what is the
Anuta_ua [19.1K]

Answer: 114

Step-by-step explanation:

The value of the denominator in the calculation of the multiple standard error "MSSE' of estimate is given by "n-k-1 " , where n= Total observations , k = total independent variables such that MSSE=\dfrac{SSE}{n-k-1}

Given : A multiple regression analysis is based on 10 independent variables collected from a sample of 125 observations.

i.e. Total observations : n= 125

Total independent variables : k=10

Then, the value of the denominator in the calculation of the multiple standard error of estimate would be (125)-(10)-1 =114

Therefore , the value of the denominator in the calculation of the multiple standard error of estimate = 114 .

5 0
3 years ago
What is the perimeter of a square with an area of 81 cm2
tatyana61 [14]

Answer:

36 cm

Step-by-step explanation:

6 0
3 years ago
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