Which expression should you simplify to find the 90% confidence interval, given a sample of 80 people with a sample proportion of 0.75?
A. 0.75 +1.645 .
0.75(1-0.75)
80
B. 0.75 +1.645 •
10.75(1–0.75)
80
C. 0.75 + 80 •
0.75(1-0.75)
1.645
O D. 0.75 +
1.645.0.75
80
SUBMIT

correct answer:

a + bi

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

step-by-step explanation:

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step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)