(8 + 2)2 + (6 - 4) x 3?
1 answer:
You might be interested in
Answer:
and
Step-by-step explanation:
Here is how I found out the answers, i graphed them on Desmos:
=solid red line
= dotted black line
Hope this helps! Brainliest would be much appreciated! Have a great day! :)
Answer:
x= 32.3 (3 s.f.)
θ= 21.8° (1 d.p.)
α= 68.2° (1 d.p.)
Step-by-step explanation:
Applying Pythagoras' Theorem,
x²= 12² +30²
x²= 144 +900
x²= 1044
Square root both sides:
x= 32.3 (3s.f.)
θ= 21.801° (3 d.p.)
θ= 21.8° (1 d.p.)
= 68.2° (1 d.p.)
Alternatively,
α +θ +90°= 180° (∠ sum of triangle)
α +21.801° +90°= 180°
α +111.801°= 180°
α= 180° -111.801°
α= 68.199°
α= 68.2° (1 d.p.)
