Answer: s _< 40
Step-by-step explanation:
The equation that has infinitely many solutions in the options is 21 + 2.5w = 6 +5.7w - 3.2w + 15
<h3 /><h3 /><h3>What is an equation with an Infinitely many solution:</h3>
An equation with infinitely many solutions essentially have same thing on both sides.
Generally, a linear equation has infinitely many solution when the equations are equivalent. Let take for example:
The equation above have infinitely many solution because there is no actual value of y.
Therefore,
2y + 2 = 2y + 2
2 = 2
We can see both sides are equal to each other. So, this is an infinitely many solution.
Therefore, 21 + 2.5w = 6 +5.7w - 3.2w + 15 has an infinitely many solution.
- 21 + 2.5w = 6 +5.7w - 3.2w + 15
- 21 + 2.5w = 6 + 15 + 5.7w - 3.2w
- 21 + 2.5w = 21 + 2.5w
- 21 = 21
- 0 = 0
learn more infinite solution: brainly.com/question/21499734?referrer=searchResults
Now, if the diameter is 8 units, then the radius is half that, or 4.
Answer:
Option d is right
Step-by-step explanation:
We know that a linear correlation is a measure of association between two variables dependent and independent variable. r always lies between -1 and 1 both inclusive. If r is nearer to 0 weak correlation and if |r| is near to 1 there is a stronger correlation.
Positive sign of r implies positive association and negative r implies negative association.
Hence out of the four options given about correlation we have
Option a is right because removal of outliers confirm accurate correlation
Option B is right because only if linear pattern is visible, correlation will be right
Option C is right because only for numerical data r can be calculated
Option d is wrong because correlation lies always between -1 and 1 both inclusive.