Answer:

Step-by-step explanation:
First find the area of the triangle,
(8.4 x 24)/2 = 100.8
Then find the area of the parallelogram,
24 x 12 = 288
Then add both,
100.8+288 = 388.8 yd^2
Answer:
BC= 1.92837
Step-by-step explanation:
sin40=0.64279
or,perpendicular(BC)<em>/</em>hypotenuse(AB)=0.64279
or,BC/AB=0.64279
or,BC/3=0.64279
or,BC=0.64279 x 3
:.BC=1.92837 <u>ans</u>
Answer:
(4, 4 )
Step-by-step explanation:
Given the 2 equations
- 6x + 6y = 0 → (1)
9x - 8y = 4 → (2)
Multiplying (1) by 3 and (2) by 2 and adding will eliminate the x- term, that is
- 18x + 18y = 0 → (3)
18x - 16y = 8 → (4)
Add (3) and (4) term by term to eliminate x, then
2y = 8 ( divide both sides by 2 )
y = 4
substitute y = 4 into either of the 2 equations and solve for x
Substituting into (2)
9x - 8(4) = 4
9x - 32 = 4 ( add 32 to both sides )
9x = 36 ( divide both sides by 9 )
x = 4
Solution is (4, 4 )
Answer:
True. No matter if n is a negative or positive, it will always be less than 4.