Simplify the expression: 3g - g + 69
2 answers:
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Answer:
A)
Step-by-step explanation:
1) Plug 2 sets of points into slope formula to find the slope:
2) Write the slope as a decimal:
3) Plug the slope and two points into point slope form:
4) Distribute 1.3 to x and 0:
5) Add 10 to both sides:
9514 1404 393
Answer:
C. 837
Step-by-step explanation:
The remaining angle is ...
C = 180° -A -B = 180°-62° -67° = 51°
The law of sines tells us that the length AC is ...
AC/sin(B) = AB/sin(C)
AC = AB·sin(B)/sin(C) = 40·sin(67°)/sin(51°)
Using the area formula given, we now have ...
area = 1/2(AB)(AC)sin(A)
= (1/2)(40)(40·sin(67°)sin(62°)/sin(51°) ≈ 836.7
The area of the triangle is about 837 square units.
