Tobias is lifting weights and records the total number of reps he does every day. Suppose A represents the number of reps and B represents the day. Which of the following accuratelydescribe this situation?
A. A is a function of B and B is a function of A
B. A is a function of B
C B is a function of A
D. Neither is a function of the other
Answers
Final answer:
The number of reps Tobias does depends on the day, thus 'A' is a function of 'B'. The number of reps in itself does not determine the day, so 'B' cannot be a function of 'A'. The correct answer is 'A is a function of B'
Explanation:
In this situation, each day Tobias lifts weights, he carries out a certain number of reps. So, the number of reps (A) he does is dependent on the day (B), hence, A is a function of B. It simply means that for every day (input), there's a corresponding number of reps (output). It is not necessarily true that for each specific number of reps, there is a specific day. Hence, B cannot be said to be a function of A. Therefore, the correct answer is 'A is a function of B'.
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Answer:
Step-by-step explanation:
Answers
Answer:
- maximum: 50
Step-by-step explanation:
The negative coefficient of x^2 tells you the parabola opens downward. (Any even-degree polynomial with a negative leading coefficient will open downward.)
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1. Factor out the leading coefficient from the x-terms
-1(x^2 +14x) +1
2. Add the square of half the x-coefficient inside parentheses, subtract the same amount outside parentheses.
-1(x^2 +14x +49) -(-1·49) +1
3. Simplify, expressing the content of parentheses as a square.
-(x +7)^2 +50
4. Compare to the vertex form to find the vertex. For vertex (h, k), the form is
a(x -h)^2 +k
so your vertex is ...
(h, k) = (-7, 50) . . . . . . . . . a = -1 < 0, so the curve opens downward. The vertex is a maximum.
The maximum value of the expression is 50.
1) 3.38
2)13.99
3)12.59
4)16.09
Answers
Answer:
12.59
Step-by-step explanation:
took the got dam tst
Answers
Answer:
(a) The critical value of t at P = 0.01 and 15 degrees of freedom is 2.602.
(b) The critical value of t at P = 0.05 and 19 degrees of freedom is -1.729.
(c) The critical value of t at P = 0.025 and 12 degrees of freedom is -2.179 and 2.179.
Step-by-step explanation:
We have to find the critical t values for each of the following levels of significance and sample sizes given below.
As we know that in the t table there are two columns. The horizontal column is represented by the symbol P which represents the level of significance and the vertical column is represented by the symbol '' which represents the degrees of freedom.
(a) A right-tailed test of a population mean at the α=0.01 level of significance with 15 degrees of freedom.
So, here the level of significance = 0.01
And the degrees of freedom = n - 1 = 15
Now, in the t table, the critical value of t at P = 0.01 and 15 degrees of freedom is 2.602.
(b) A left-tailed test of a population mean at the α=0.05 level of significance with a sample size of n = 20.
So, here the level of significance = 0.05
And the degrees of freedom = n - 1
= 20 - 1 = 19
Now, in the t table, the critical value of t at P = 0.05 and 19 degrees of freedom is -1.729.
(c) A two-tailed test of a population mean at the α=0.05 level of significance with a sample size of n = 13.
So, here the level of significance = = 0.025 {for the two-tailed test}
And the degrees of freedom = n - 1
= 13 - 1 = 12
Now, in the t table, the critical value of t at P = 0.025 and 12 degrees of freedom is -2.179 and 2.179.
Answers
Answer:
Your answer is C
Step-by-step explanation:
Supplementary angles are angles that come out to 180 degrees when added.
90+90=180