it would be 13
Step-by-step explanation:
The statement (d) Alaric's maths grade is the response variable is correct because maths grade is a dependent variable.
<h3>What is an explanatory variable?</h3>
It is defined as the variable which is independent. They show the expected results and the result is known as the response variable which is dependent on the explanatory variable.
We have given:
Alaric wants to determine if he can get a better grade in maths by studying for longer periods of time.
The duration of the experiment is 4 weeks which is known or constant.
But the number of hours she studied is a variable, and it is independent.
The maths grade is the dependent variable which is on the number of hours Alaric study variable.
Thus, the statement (d) Alaric's maths grade is the response variable is correct because maths grade is a dependent variable.
Learn more about the explanatory variable here:
brainly.com/question/19522839
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Answer:
1. You can prove that a line parallel to one side of a triangle divides the other 2 sides proportionally by using the Triangle Proportionality Theorem.
2. You prove the base angles are congruent by constructing the angle bisector through the vertex angle of an isosceles triangle. By constructing the angle bisector, we designed two congruent triangles and then used CPCTC to show that the base angles are congruent.
Step-by-step explanation:
Answer:
4, tell me if wrong
Step-by-step explanation:
c² = b² + a²
now, 5x5 = 25
3 x 3 = 9
25 - 9 =
4