-6a - 4a + 7a = -10a + 7a = -3a, that isn't 5a;
b. False
Answer:
C = 28.048
Step-by-step explanation:
Circumference = 2pi(r)
Area = pi(r)^2
62.6 = pi(r)^2
r^2 = 62.6/pi
r^2 = 19.926
r = 4.464
Therefore, circumference = 2pi(4.464)
= 28.048
Answer:
1/100000
Step-by-step explanation:
1/10*1/10*1/1000=1/100*1/1000=1/100000
Answer:
JK - 20
Step-by-step explanation:
As JLM is a square triangle, so that we have the formula to calculate the corner ∡LMJ
We have tan∡LMJ = LJ/ JM =45/60 = 0.75
+) As ∡LMK = ∡KMJ => tan ∡LMK = tan ∡KMJ
+) ∡LMK + ∡KMJ = ∡LMJ
We have the formula: tan (x+y) =
=> tan (∡LMK + ∡KMJ) =
As tan (∡LMK + ∡KMJ) = tan ∡LMJ = 0.75
=> = 0.8
=> 0.75 - 0.75 x = 2tanKMJ
As 0 < ∡KMJ < => tan KMJ > 0
=> tan KMJ = 1/3
As JKM is also a square triangle
=> We have tan∡KMJ = JK/JM
=> 1/3 = JK/JM
=. JK = JM x (1/3) = 60 x (1/3) = 20
So JK = 20
289*7=2023, so your answer is 2022 and 2024