Answer:
$0.95
Step-by-step explanation:
Given that weight of the function = x
Given that cost of the postage for mail having weight less than or equal to 1 oz = $0.44
then to find the equation can be written as
C(x)=0.44 where 0<x<=1
Similarly we can write equation for other parts
C(x)=0.61 where 1<x<=2
C(x)=0.78 where 2<x<=3
C(x)=0.95 where 3<x<=3.5
Now we can write them together as piecewise function as shown in below:
to graph that we just draw horizontal lines for each as none equation contains x on the right side .
3.48 oz is less that 3.5 so we will use $0.95.
Answer: x = 0 y = –3
Step-by-step explanation:
We can solve this system by substitution.
use the second equation as a value for x.
Then substitute that value in place of x in the first equation and solve for y.
6x - 5y = 15 becomes
6(y + 3) - 5y = 15 Distribute 6 × parentheses
6y + 18 - 5y = 15 combine like terms
6y -5y + 18 = 15
y + 18 = 15 Subtract 18 from both sides.
y =15 -18
y = –3
Use this value for y in either equation to solve for x
6x - 5(-3) = 15
6x + 15 = 15 Subtract 15 from both sides, divide by 6 (seems silly!)
x = 0
OR in he second equation,
x = -3 + 3
Again, x = 0
x-intercept is (2,0)
y-intercept is (0,-5)
Step-by-step explanation:
Danielle plans to graph the linear equation 5x-2y=10 by plotting the x-intercept and y-intercept.
Finding x-intercept
X-intercept: Substitute 0 for y and then solve for x. Write your answer in the form (__, 0)
Putting y=0
So, x-intercept is (2,0)
Finding y-intercept
Y-intercept: Substitute 0 for x and then solve for y. Write your answer in the form (0, __)
Putting x=0
So, y-intercept is (0,-5)
Keywords: Solving Equations
Learn more about solving equations at:
#learnwithBrainly
Answer:
True
Step-by-step explanation:
