Answer:
X=20
you subtract 15 from 75 to get 60 then divide 60 by 3 to get 20
Step-by-step explanation:
hi im not really sure if this is right
4x-24y. Basically you distribute 4 to x which makes it 4x and distribute 4 to 6 which multiplies to 24 and you drop y next to it making it 24y
Answer:
From the looks of the graph, it looks like the answer will be Letter C. (The last graph).
Step-by-step explanation:
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Down
Vertex: (
−
3
/4
, 41
/8
)
Focus: (
−
3
/4
, 5
)
Axis of Symmetry: x
=
−
3
/4
Directrix: y
=
21
/4
x y
−
3 −
5
−
2 2
−
3 4
41 8
0 4
1 −
1
Answer:
To find cosθ, use the formula for the area of a triangle i.e. AREA=1/2 x a x b x sinC.=> For this case: 15= 1/2 x 10 x 5 x sinC to find sinC.=> SinC = 3/5 thus, Arcsin(3/5)=+- 4/5 or +-0.8
To find the exact length of BC, use the cosine rule.=> c(sq)=a(sq)+b(sq)-2abCosC=> c(sq)=10(sq)+5(sq)-2(10)(5)(+-4/5)=> c(sq)= Square root of 205