X both sides by 11
=6x+2=-22
-2 from both sides
=6x=-24
both sides /6
=x=-3
Answer:
1) ΔACD is a right triangle at C
=> sin 32° = AC/15
⇔ AC = sin 32°.15 ≈ 7.9 (cm)
2) ΔABC is a right triangle at C, using Pythagoras theorem, we have:
AB² = AC² + BC²
⇔ AB² = 7.9² + 9.7² = 156.5
⇒ AB = 12.5 (cm)
3) ΔABC is a right triangle at C
=> sin ∠BAC = BC/AB
⇔ sin ∠BAC = 9.7/12.5 = 0.776
⇒ ∠BAC ≈ 50.9°
4) ΔACD is a right triangle at C
=> cos 32° = CD/15
⇔ CD = cos32°.15
⇒ CD ≈ 12.72 (cm)
Step-by-step explanation:
Answer:
45 cm²
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
2a+3b=15, multiply everything by 3
3(2a+3b)=3(15)
6a+9b=45
Answer:
The y-intercept point would be on the -5 of the y-axis while the x-intercept would be on the -5 of the x-axis.
hope this helps :)