Answer:
The length of AB is 
units
Step-by-step explanation:
The rule of the distance between two points (x1, y1) and (x2, y2) is
∵ The endpoints of AB are (-4, 5) and (2, -7)
→ Let point (-4, 5) be (x1, y1) and point (2, -7) be (x2, y2)
∴ x1 = -4 and y1 = 5
∴ x2 = 2 and y2 = -7
→ Substitute them in the rule above to find the length of AB
∵ 
∴ 
∴ 
∴ The length of AB is units
Answer:
37.5 g
Step-by-step explanation:
The final solution will contain 3% × 100 g = 3 g of solute. This amount of solute will be found in w grams of 8% solution, where ...
... 3 = 0.08 × w
... 3/0.08 = w = 37.5 . . . . . grams of 8% solution
Answer:
7:2
7/2
Step-by-step explanation:
7:2 is also equivalent to 7/2
The volume is 810 ft^3= 9*10 *x
810=90x
x=810/90
x=9 feet is the long
Use point slope form
y - y1 = m(x - x1)
where:-
m = slope of 2x - y = 8 which is 2, x1 = 5 and y1 = 5:-
y - 5 = 2(x - 5)
y - 5 - 2x = -10
y - 2x = -5 <----- Answer
