so hmmm on average on the last 7 test, you get 82, so hmmm we could say that on each of the 7 tests you got 82, so you got 82, 7 times.
now, let's say in the 8th test, you get a grade of "g", now, if we were to get an average of all 8 tests, that means the average will simply be (82*7) + "g", and we know that's 84, so
Answer:
270 centimeters squared
Step-by-step explanation:
A = H x W / 2
A = 18 x 30
A = 270
From 11 A.M. to 2 P.M. because that is when the line is constantly straight
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
AB:
d = sqrt
( (−5−2)^2 + (−2−(−8))^2)
d = sqrt( (−7)^2 + (6)^2 )
d = sqrt(49+36)
d = sqrt(85)
d = 9.219544
BC:
d = sqrt
( (−7−(-5))^2+(3−(−2))^2
)
d = sqrt( (−2)^2 + (5)^2 )
d = sqrt(4+25)
d = sqrt(29)
d = 5.385165
AC:
d = sqrt
( (−7−(2))^2+(3−(−8))^2
)
d = sqrt( (−9)^2 + (11)^2 )
d = sqrt(81+121)
d = sqrt(202)
d = 14.21267
DE:
d = sqrt
( (−11−(-9))^2+(12−7)^2
)
d = sqrt( (−2)^2 + (5)^2 )
d = sqrt(4+25)
d = sqrt(29)
d = 5.385165
EF:
d = sqrt
( (−2−(-11))^2+(1−12)^2
)
d = sqrt( (9)^2 + (-11)^2 )
d = sqrt(81+121)
d = sqrt(202)
d =14.21267
DF:
d = sqrt
( (−2−(-9))^2+(1−7)^2
)
d = sqrt( (7)^2 + (-6)^2 )
d = sqrt(49+36)
d = sqrt(85)
d = 9.219544
Yes, the triangles are congruent because the lengths are the same.
