Answer:
A
Step-by-step explanation:
Using the Sine rule in Δ ABC
= , substitute values
= ( cross- multiply )
BC sin38° = 3 sin66° ( divide both sides by sin38° )
BC = → A
Make 4/5 into 8/10 which would make the decimal .8.
Answer:
The answer is A. 9y^2-6y+4
Y = 4x - 9 and y = x-3 so the two right sides (4x-9 and x-3) must be equal
4x-9 = x-3
Let's solve for x
4x-9 = x-3
4x-9+9 = x-3+9 ... add 9 to both sides
4x = x+6
4x-x = x+6-x ... subtract x from both sides
3x = 6
3x/3 = 6/3 ... divide both sides by 3
x = 2
If x = 2, then y is...
y = 4*x - 9 = 4*2-9 = 8-9 = -1
which can also be found by
y = x-3 = 2-3 = -1
So overall x = 2 and y = -1
We have the ordered pair (x,y) = (2,-1)
Answer:
Exact form: g= -7/10
Decimal form: g= -0.7
Step-by-step explanation: