Answer:
(- 3, 2 )
Step-by-step explanation:
The solution to the system is at the point of intersection of the 2 lines.
The lines intersect at (- 3, 2 )
Thus the solution is (- 3, 2 )
Circumference of a white oak tree:
C = 90 in.
C = 2 r π
2 r π = 90
r · 6.28 = 90
r = 90 : 6.28
r = 14.33 in ( but it is not r in the formula )
Since the bark is 0.5 in thick: r = 14.33 - 0.5 = 13.83 in
a = r : w = 13.83 : 0.2 = 69.15 years
The widest ring is one that shows 69 years:
r = 69 · 0.2 = 13.8 in
A = r² π = 13.8² · 3.14 = 190.44 · 3.14 = 597.98 in²
Answer: The tree`s age is 69.15 years ( or 69 years and 2 months ) and the area enclosed by the outer circumference of the widest ring is 597.98 in².
Answer:
3/4+2/5=13/20
Step-by-step explanation:
The general rule for estimating is to look at the digit to the right of the digit you want to estimate. Estimating or rounding to the nearest whole number means looking at the digit to the right of the decimal. If you see a digit greater than 5, round up, and if it's less than 5, round down.
Supplementary Angles = 180
180 - 32 = 148
The supplementary angle of 32 would be 148.
Answer:
Angles B and H= Alt exterior angles
Angles D and C= Adjacent angles
Angles B and F= Corresponding angles
Angles C and E= Alt interior angles