Answer:
option C
Step-by-step explanation:
we have
using a graphing tool
see the attached figure N
The range is the interval--------> (-∞,8]
case A) 
using a graphing tool
The range is the interval--------> [-8,∞)
case B) 
using a graphing tool
The range is the interval--------> [8,∞)
case C)
using a graphing tool
The range is the interval--------> (-∞,8]
case D) 
using a graphing tool
The range is the interval--------> (-∞,-8]
The slope of the function is $400.
<h3 /><h3>Definition of slope of a function</h3>
The slope of a function is the rate of change of the dependent variable with respect to the independent variable. The equation that represents a function is: y = mx + b
Where:
- y = dependent variable
- m = independent variable
- x = slope
- b = constant
Looking at the total money raised, the amount of money increases by 400. This is the slope.
To learn more about slope, please check: brainly.com/question/2491620
Answer:
2.8828283e+16
Step-by-step explanation:
Answer:
Step-by-step explanation:
I uploaded a picture hope it helps
Answer:
13 l of 15%, 13 l of 25%, 26 l of 70%
Step-by-step explanation:
solutions:
final solution:
This includes 0.45*52l= 23.4 l acid
Let's assume:
- amount of 15% solution= x
- amount of 25% solution= y
- amount of 70% solution= z
- and we have z=2y
so there are 2 equation:
or
- x+y+2y= 52 ⇒ x+3y= 52 ⇒ x= 52- 3y
- 0.15x+1.65y=23.4
- 0.15*(52-3y)+1.65y=23.4
- 7.8-0.45y+1.65y=23.4
- 1.2y=23.4-7.8
- 1.2y= 15.6
--------
- x= 52- 3*13= 13 l
- z= 2y= 2*13= 26 l
