Answer:
<u>k = 1.5</u>
Step-by-step explanation:
To find the value of k, at first we will find the point of intersection of the lines
y =2x –5 and y = –x+1
Solve the equations to together by equating the values of y
So, 2x - 5 = -x + 1
Solve for x
3x = 6 ⇒ x = 6/3 = 2
So, y = -x + 1 = -2 + 1 = -1
So, the point of intersection of the lines ⇒ (2,-1)
line y = kx –4 pass through the point of intersection of the lines
so, line y = kx –4 pass through the point (2,-1)
So, at x = 2 , y = -1
∴ -1 = 2k - 4
Solve for k
-1 + 4 = 2k
2k = 3
k = 3/2 = 1.5
<u>So, the value of k is 1.5</u>
(A) f(s) = -5s + 8500
To find out when the plan will land set the f(s) = 0
(B) f(s) = -5s + 8500
f(s) = -5s + 8500
0 = -5s + 8500
-8500 = -5x
-8500 / -5 = -5x / -5
1700 = x
x = 1700
So when the altitude is at 0, which we used for f(s) = 0, it would take 1700 seconds for the plan to land or crash or explode like a bomb and the rest I will leave to your imagination....
Also, we can convert the seconds to hours. 1700 / 60 = 28.33 hr
The range is the values of y, or the values of f(x)
multiple every number in the { } by 3.2, you will get the range.
the answer is A
Answer: the answer is rounded to the whole number is 8 then x 7 is 56 squared cm.
Step-by-step explanation:
Answer:
-1.8
Step-by-step explanation:
m= y2 - y2over x2 - x1
m= -1 - 8 over 1 - 6 = -1.8
m= -1.8