Answer:
10.3
Step-by-step explanation:
d = sqrt ((x2 - x1)^2 + (y2 - y1)^2)
(7,-2)....x1 = 7 and y1 = -2
(-2,3)...x2 = -2 and y2 = 3
now we sub
d = sqrt ((-2 - 7)^2 + (3 - (-2)^2)
d = sqrt ((-9^2) + (5^2))
d = sqrt (81 + 25)
d = sqrt (106)
d = 10.295 rounds to 10.3 <===
Answer:
8. x=450
Step-by-step explanation:
I can only answer 8 sorry qwq
Let's solve this by substitution.
y is given by the 2nd eqn as y = (1/3)x + 7. Subst. (1/3)x + 7 into the first eqn as a replacement for y: x + 9( (1/3)x + 7) = 3.
clear out fractions by mult. all 3 terms by 3: 3x + 9x + 63 = 3
Combine like terms: 12x = -60. Then x = -5
Find y by subst. -5 for x in the 2nd equation: y = (1/3)(-5) + 7
= -5/3 + 35/3 = 30/3 = 10.
Thus, the solution (x,y) of this system is (-5,10).
Answer:
A.
Step-by-step explanation:
Answer:
1.512445e+216
Step-by-step explanation:
