Answer:
x = 0.6623
y = 8
Image is attached for refernce of my solution
Step-by-step explanation:
In Δ DEF
By applying pythagoras theoram,
DE = 
=
∴ DE = 8
In Δ ABC
BC = y = 12 sin 30° = 6
AC = 
+ DE + x = + 8 + x = 12 cos 30°
⇒ 9.73 + x = 10.39
<h3>⇒ x = 0.6623</h3>
Answer: 6 + 3b ≥ 15 or the fourth one
Step-by-step explanation:
At most is $15 or more so that is equal to and greater than
She has already spent $6 so that's alone and she's gonna get b crackers for $3 each. To find the cost of <em>b </em>crackers you have to multiply <em>b </em>by 3 which is 3b.
Hope I helped!
Poopoo!!!?!!!!!!!?!!!??!!!
Answer:
x = 4 or x = 0.78
Step-by-step explanation:
9x² – 29x – 28 = 0
2 roots: x = ((-(-29) ± √(-29)² - 4 x 9 x (-28)) / (2 x 9)
= (29 ± √841 + 1008) / 18
= (29 ± 43) /18
x = 72 /18 = 4 or
x = -14 /18 = - 0.78
