Answer:
Perpendicular.
Step-by-step explanation:
Since x is postive in one equation and negative in the other, it is an indicator that both x's go in different directions.
Here it is graphed:
Answer:
a) 10.7 cm
b) 11.6 cm
c) 29.9 cm²
Step-by-step explanation:
a) sin(α)/a = sin(β)/b
sin(∠BCD)/BD = sin(DBC)/DC
sin(41°)/BD = sin(55°)/13.4
BD = 13.4*sin(41°)/sin(55°) = 10.73 cm ≈ 10.7 cm
b) From ΔBCD , ∠BDC = 180-(41+55) = 84°
∠ABD and ∠BDC are alternate interior angles, so they are congruent, and
∠ABD = ∠BDC = 84°
AD²= AB² + BD² - 2*AB*BD*cos (∠ABD) =
= 5.6² + 10.73² - 2*5.6*10.73*cos(84°) = 133.93 cm²
AD =√(133.93) ≈11.6 cm
c) Area(ADB) = (1/2)*AB*BD*sin(∠ABD)=(1/2)*5.6*10.73*sin(84°) ≈ 29.9 cm²
Hi there!
First work out the parenthesis.
Now collect the terms.
Next up we can answer our questions.
The coefficient of the a^2 term is...
B) -2
The coefficient of the ab term is...
B) 4
The coefficient of the b term is...
A) -2
Answer:
Step-by-step explanation:
y - 6 = -9/7(x - 14)
y - 6 = -9/7x + 18
y = -9/7x + 24