Answer:
The size of the sample = 1088.90
Step-by-step explanation:
Given that:
The confidence interval level = 0.95
The margin of error = 0.03
Suppose the proportion of the boys and the girls are p₁ and p₂ respectively.
The Standard error S.E of difference is:
Assume p₁ = p₂ = 0.5
The z-critical value at 95% C.I = 1.96
Margin of error = Z_{critical} × S.E
∴
n ≅ 1088.90
For this case, the first thing we must do is define variables.
We have then:
x: number of blue beads
y: number of red beads
We now write the inequations system:
Answer: a system of linear inequations that represents the situation is:
Answer:
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Step-by-step explanation:
so basically i remembered it as if it had the line underneath it, that it had extra and was more full, which means that the circle would be full. its just saying that x is greater than 0.0 so any number greater than 0 is greater than 0.0. idk if that made sense, but i tried,
(2x - 3)x = 2(x² - 6)
<u> +6 +6</u>
(2x + 3)x = 2(x²)
(2x)x + (3)x = 2x²
2x² + 3x = 2x²
<u>-2x² -2x²</u>
<u>3x</u> = <u>0</u>
3 3
x = 0