Answer:
44
Step-by-step explanation:
Let x and y be the total number of questions in part 1 and part 2 exams respectively.
For part 1:
Number of correct question = 4/5 of the total number of question in part 1


For part 2:
Number of corrected question = 2/3 of total number of question in part 2


So, the total umbers of the questions on Stephanie's exam
=x+y
=20+24
=44
Hence, the total umbers of the questions on Stephanie's exam was 44.
Answer: 1/12
Step-by-step explanation: 1/4 x 3 = 1/12
We will solve each expression step by step:
<span>
Expression 1:
-12x4 + 7x3 + 6x4 - 2x3
x4 (-12 + 6) + x3 (7-2)
-6x4 + 5x3
Answer:
5x ^ 3 - 6x ^ 4
Expression 2:
-5x3 + 7x4 + 4x4 - 8x3
x4 (7 + 4) + x3 (-5-8)
11x4 - 13x3
Answer:
11x ^ 4 - 13x ^ 3
Expression 3:
-2x4 - 10x3 + 4x4 - 2x3
x4 (-2 + 4) + x3 (-10-2)
2x4 - 12x3
Answer:
2x ^ 4 - 12x ^ 3
Expression 4:
15x3 - 15x4 + 13x4 - x3
x4 (-15 + 13) + x3 (15-1)
-2x4 + 14x3
Answer:
14x ^ 3 - 2x ^ 4
Expression 5:
7x4 - 15x3 + 12x3 - 2x4
x4 (7 - 2) + x3 (-15 + 12)
5x4 - 3x3
Answer:
5x ^ 4 - 3x ^ 3</span>
Answer:
21:9, 14:6, 28:12
Step-by-step explanation:
literally just multiplying them by the same number:
7*3 : 3*3 = 21:9
etc.
It would be 3 because the slope of the given line is -1/3 and a line perpendicular is the negative reciprocal so 3/1 or 3. Hope this helps!