Answer:
Step-by-step explanation:
X^2-3x=7/4 should first be rewritten in standard form, which here would be:
x^2 - 3x - 7/4 = 0.
1. Identify the coefficient of the x term and take half of that number:
-3/2
2. square this result: (-3/2)^2 = 9/4
3. add this last result, 9/4, between the -3x term and the -7/4 term, and then subtract it as shown:
x^2 - 3x + 9/4 - 9/4 - 7/4 = 0
4. Rewriting the first 3 terms as the square of a binomial, we get:
(x - 3/2)^2 - 16/4 = 0, or (x - 3/2)^2 = 16/4
5. Take the square root of both sides, obtaining:
x - 3/2 = ±√4/2 or ±√2
6. Write out the two roots: x = 3/2 + √2
and x = 3/2 - √2
Answer:
Step-by-step explanation:
40% = 0.4 or ⅖
<span>P(at least 1 ) = 1 - P(exactly none) = 1 - (4/5)^6 = .738
Hope this helps!!!:)</span>
14
Step-by-step explanation:
Area of a triangle = 1/2 ×base ×height
= 1÷2 ×(7×4)
=1÷2 ×28
=14
Answer:
p = 11.2
Step-by-step explanation:
2.6(5.5p – 12.4) = 127.92,
5.5p - 12.4 = 49.2,
5.5p = 61.6,
p = 11.2
