Finding Experimental Probability Trial
Trial
11
Result
Hнт
On a nearby pond, black and white ducks are
swimming in groups of three. Use the table to find the
experimental probability of two white ducks and one
black duck swimming together, Tails up represents
white ducks and heads up represents black ducks.
2
3
4
5
Result
Hнт
HTT
НАТ
HHH
МНТ
HHT
TTT
Hнт
HTT
HHH
6
12
13
14
15
16
17
18
19
20
TTT
HTT
HTT
TTT
Hнт
HTT
HTT
HTT
7
8
9
10

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

hard

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629