Step-by-step explanation:
1 week = 7 days
given 7 days = 14 hours of practice
and let x be the number of hours spent on practicing and y the number of days.
from the above expression we can have the equation,
![y = \frac{x}{2}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7Bx%7D%7B2%7D%20)
using the equation when y = 10,
![\frac{x}{2} = 10 \\ x = 2(10) \\ = 20](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B2%7D%20%20%3D%2010%20%5C%5C%20x%20%3D%202%2810%29%20%5C%5C%20%20%3D%2020)
Answer:
A = 5x² + 6x + 1
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A =
h (a + b)
where h is the height and a, b the parallel bases, thus
A =
(x + 1)(6x - 5 + 4x + 7)
=
(10x + 2)(x + 1)
= (5x + 1)(x + 1) ← distribute using FOIL
= 5x² + 6x + 1
Answer:
y = 3sin(πx/7) - 2
Step-by-step explanation:
Max swing is 1 - (-5) = 6, so A = 6/2 = 3
wave is shifted down two units, so C = -2
y = -2 when x = 0 so sine wave is a good choice as sin0 = 0
Wavelength is 14 units so k = 2π/14 = π/7
No she is not correct
80 x.70 is 56 as you wrote, and it says 70% wait LESS THAN 30 minutes
On the left of the graph, time, you go to 30 minutes and the patients are much less (21) than 56 patients
ANSWER: No