Answer:
=53
Step-by-step explanation:
a=5-b &. a=9+b
combine
5-b=9+b
-4=2b
b= -2
thus, a=7
(-2)^2 + (7)^2
4+49
=53
Answer:
6 hrs and 20 min
Step-by-step explanation:
7x(5/6)+(3/6)=35/6+3/6=38/6
38/6 simplified is 6 2/6 or 6 1/3
in hrs and minutes, this is 6 hrs and 20 minutes
Answer:
her total was 11.
Step-by-step explanation:
X=-2/5
Steps:
6^x/3 +2 = 6^-14x/3
x/3+2 = -14x/3.
x +6 = -14x (multiply both sides by 3)
x = -14x - 6 (Substract 6 from both sides)
x + 14x = -6 (add 14x to both sides)
15x = -6 (collect like terms)
x = -2/5 (divide both sides by 15)
Answer:
earth C≈40030.17
moon C≈10917.03
the difference in their circumference is 29113.14 km
Step-by-step explanation: