Answer:
Option (3) will be the answer.
Step-by-step explanation:
Area of a triangle = 
= 
Since, m∠A + m∠B + m∠C = 180°
60° + 60° + m∠C = 180°
m∠C = 180° - 120°
m∠C = 60°
Therefore, ΔABC is an equilateral triangle.
AB ≅ BC ≅ AC ≅12
Sin 60° = 
CD = 6√3
Now area of ΔABC = 
= 
= 62.35
≈ 62.4 square units
Therefore, Option (3) will be the answer.
Answer:
g = j - 12
Step-by-step explanation:
Let's say Jessie installed j axles. Convert words to math:
- "12 more" = + 12
- "the number of engine blocks her friend Gus installed yesterday" = g
Put it together: g + 12. This is equal to j: j = g + 12. Solve for g:
j = g + 12
g = j - 12
Positive,
because 2*12 equals to 24, and 24 is positive!
Answer:
9
Step-by-step explanation:
The range is the biggest number minus the smallest number
The biggest number in this set is 10
The smallest number is 1
10-1=
9
Answer:
35/7 or 5
Step-by-step explanation:
so you multiply 5 and 9 which is 45- 10 which is 35 but then its 5-(-2) which when doing this a variable minus a negative makes it a positive so then its 5+2 which is 7 then you have 35/7 or 5
