3x² + 2x - 4 = 0
Δ = b² - 4.a.c
Δ = 2² - 4 . 3 . -4
Δ = 4 - 4. 3 . -4
Δ = 52
x = (-b +- √Δ)/2a
x' = (-2 + √52)/2.3
x'' = (-2 - √52)/2.3
x' = 0,8685170918213297
x'' = -1,5351837584879966
2 Decimal places
x' = 0,87
x'' = -1,54
Answer:
7 units
Step-by-step explanation:
count
The proportion who had<em> no such experience</em> was 0.362
<h3>
How the find the proportion?</h3>
Given:
Total sample: 3887
No that had no opinion: 1407
No that had at least one experience: 2480
Therefore, to find the proportion who had<em> no such experience</em> is:
Sample number/Total sample
1407/3887
=0.362
Read more about proportions here:
brainly.com/question/19994681
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0.25-1.125-16/8=??
Answer is -2.875
Answer:
9 ft
Step-by-step explanation: