12(4x - 5) + 52 = 10 <em>|use distributive property</em>
(12)(4x) + (12)(-5) + 52 = 10
48x - 60 + 52 = 10
48x - 8 = 10 <em>|+8</em>
48x = 18 <em>|:48</em>
<h3>x = 0.375</h3>
15x + 19y * 17 = 184
15x + 323y = 184
15x = 184 - 323y
x = 12.266 - 21.533y
Answer:
6.74 s
Step-by-step explanation:
y = ½ at² + vt + h
Given a = -32, v = 80, h = 188:
y = ½ (-32) t² + (80) t + (188)
y = -16t² + 80t + 188
When y = 0:
0 = -16t² + 80t + 188
0 = 4t² − 20t − 47
Solve with quadratic formula:
t = [ -(-20) ± √((-20)² − 4(4)(-47)) ] / 2(4)
t = [ 20 ± √(400 + 752) ] / 8
t = (20 ± √1152) / 8
t > 0, so:
t = (20 + √1152) / 8
t ≈ 6.74
I think it's called the fulcrum. <span>The fulcrum is a pivot </span>point<span>.
</span>
Answer:
your answer is option B. x≤-2