For 11, set them equal to each other, since they both equal y.
y=2x+5; y=3x-1
2x+5=3x-1
x=6
and then substitute that x-value to find y.
y=3(6)-1
y=18-1
y=17
for 14 you can substitute the bottom y-value (x+7) into the top equation.
2x=y-10; x+7=y
2x=(x+7)-10
x=-3
and then substitute that x-value to find y.
-3+7=y
y=4
Complete question :
dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places the ladder at a 70° angle with the ground, How high does the ladder reach up the side of the building?.
Answer:
24.43 feets
Step-by-step explanation:
Using trigonometry :
Sinθ = opposite / hypotenus
Opposite = height, h
Hypotenus = 26
Sin 70° = h / 26
0.9396926 * 26 = h
height, h = 24.43 feets
Answer:
15 installments
Step-by-step explanation:
3900 = Σ 
400 - 20*(n - 1)
-14>2x>18
Hope this helps!
