Okay so if you answer me in the comments I can help you but I need more explanation than that :)
Answer:
( -4, 11 ]
Step-by-step explanation:
Answer:
A = 20°
AC = 6.6
BC = 2.4
Step-by-step explanation:
Given:
B = 70°
C = right angle = 90°
AB = 7
Required:
A, AC, and BC
Solution:
✔️A = 180 - (90 + 70) (sum of triangle)
A = 20°
✔️Use trigonometric function to find AC:
Refernce angle = 70°
Opp = AC
Hypotenuse = 7
Apply SOH,
sin 70 = Opp/Hyp
sin 70 = AC/7
7 * sin 70 = AC
6.57784835 = AC
AC = 6.6 (nearest tenth)
✔️Use trigonometric function to find Bc:
Refernce angle = 70°
Adj = BC
Hypotenuse = 7
Apply CAH,
cos 70 = Adj/Hyp
cos 70 = BC/7
7 * cos 70 = BC
2.394141 = BC
BC = 2.4 (nearest tenth)
Answer:
<h3><em>the </em><em>answer</em><em> </em><em>is </em><em>A</em></h3>
Step-by-step explanation:
8x+6is equivalent to-7(1-x)+x+13 because
-7(1-x)+x+13
we use-7to multiply the numbers in the bracket which is equal to -7+7x(minus ❌times minus =+)
-7+7x+x+13
collect like terms
7x+x+13-7=8x+6
answer is A
