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WARRIOR [948]
2 years ago
13

Need help with this.

Mathematics
1 answer:
givi [52]2 years ago
5 0

Answer:

Step-by-step explanation:

You are supposed to pull out the common factor and put it outside the brackets.

42: 6 * 7

54: 6 * 9

So the answer is

6(9 + 7)

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Help 18 points pleaseeeeeeee
Genrish500 [490]
Answer : 9
explanation
8 0
3 years ago
The correlation coefficient between two quantitative variables is approximately 0.6. What does the value of this correlation coe
murzikaleks [220]

Answer:

The model does not fits the data well.      

Step-by-step explanation:

Correlation:

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.

R-square, R^2

  • The quantity R-squared is an indicator of the predictive power of a model.
  • It explains the variation in the dependent variable due to independent variable.
  • It shows how well the model fits the data.
  • R-squared is also known as the  coefficient of determination.

R^2 = \text{(Correlation coefficient)}^2= (0.6)^2 = 0.36 = 36\%

Therefore, only 36% of the variations in the dependent variable is explained by the independent variable in the model which means more than 50% of variation cannot still be explained in the dependent variable.

Hence, the model does not fits the data well.

8 0
3 years ago
Emily's family traveled 3/10of the distance to her aunt’s house on Saturday. They traveled 4/7 of the remaining distance on Sund
WARRIOR [948]

Answer: 4/10 or 2/5

Step-by-step explanation:

Let us represent, the total distance travelled as:

1

Ballio's family traveled 3/10 of the distance to his aunt's house on Saturday.

Distance left to travel = 1 - 3/10

= 7/10

They traveled 4 /7 of the remaining distance on Sunday.

The fraction of the total distance to his aunt's house was traveled on Sunday is calculated as:

4/7 × Distance left to travel

= 4/7 × 7/10

= 4/10

but if i'm wrong then the answer might be 2/5

6 0
2 years ago
Read 2 more answers
Solve this A tourist starts off from town A and travels for 50km on a bearing of N80°W to town B.At town B ,he continues for ano
VLD [36.1K]

Answer:

The point C is 12.68 km away from the point A on a bearing of S23.23°W.

Step-by-step explanation:

Given that AB is 50 km and BC is 40 km as shown in the figure.

From the figure, the length of x-component of AC = |AB sin 80° - BC cos 20°|

=|50 sin 80° - 40 cos 20°|=11.65 km

The length of y-component of AC = |AB cos 80° - BC sin 20°|

=|50 cos 80° - 40 sin 20°|= 5 km

tan\theta= 5/11.65

\theta=23.23°

AC= \sqrt{5^2+11.65^2}=12.68 km

Hence, the point C is 12.68 km away from the point A on a bearing of S23.23°W.

8 0
2 years ago
What is the solution of the equation x − 2 = 29?<br> -31<br> -27<br> 27<br> 31
Allisa [31]

31-2=29 you add 2 to both sides so -2 cancels and you are left with X=31

the answer is 31

5 0
3 years ago
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