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ASHA 777 [7]
2 years ago
12

Write a function rule to calculate the cost of buying bananas at $.39 a pound

Mathematics
1 answer:
QveST [7]2 years ago
6 0
$.39 times x=cost
x=pounds
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A study was conducted to determine the percent of children that want to grow up work in the same career as a parent. In a sample
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Answer:

Step-by-step explanation:

From the information given,

Number of sample, n = 200

Probability of success, p = 43/100 = 0.43

q = 1 - p = 1 - 0.43

q = 0.57

For a confidence level of 95%, the corresponding z value is 1.96.

The formula for determining the error bound for the proportion is

z × √pq/n

= 1.96 ×√(0.43 × 0.57)/200

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The upper boundary of the population proportion is

0.43 + 0.0686 = 0.5

The lower boundary of the population proportion is

0.43 - 0.0686 = 0.4

The error in the solution is

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Also,

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2 years ago
Circle O has a center at (-2, -2) and a diameter of 10 units. What point lies on circle O?
Sophie [7]

The point r(-6,-5)  lies on  the circle.

Explanation

Given that the center of the circle=(-2,-2)

diameter=10 units

we have to determine which point among the given points lies on the circle.

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The distance between them=\sqrt{(x-(-2))^2+y-(-2))^2}=5\\\\ \sqrt{(x+2)^2+(y+2)^2} =5\\\\

squaring both sides (x+2)^2+(y+2)^2=25\\

The option (-6,-5) satisfies the equation

therefore the point that lies on the circle is (-6,-5)

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