74. When dividing by 75, you can have a remainder anywhere from 0 to 74. For example 149/75 is 1 remainder 74, and then 150/75 is 2.
Answer:
A. maximum value at 30
Step-by-step explanation:
−x² + 10x + 5
First, factor out the leading coefficient from the first two terms:
-1 (x² − 10x) + 5
Take half of the next coefficient, square it, then add and subtract the result.
(-10/2)² = 25
-1 (x² − 10x + 25 − 25) + 5
-1 (x² − 10x + 25) + 25 + 5
-1 (x² − 10x + 25) + 30
Factor the perfect square.
-1 (x − 5)² + 30
The equation is now in vertex form. This is a downwards parabola with a vertex at (5, 30). Since the parabola points down, the vertex is a maximum.
Answer:
it takes him 8 hours
Step-by-step explanation:
Step-by-step explanation:
Total number of students =14+12
=26
Probability that a student is a girl
Answer:
1610
Step-by-step explanation:
23 x 14 / 0.2 = 1610
