3 years ago

Write an equation that is equivalent to 1/4 plus 1 plus 3/4 minus 2/3 minus 1/2

Mathematics

1 answer:

blondinia [14]3 years ago

3 0

Answer:1/4 + 1/4 = 1/2 = 0.5

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Answer:

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4 years ago

Which of the following is an equation of the line tangent to the curve with parametric equations x=3e^-t , y=6e^t at the point w

jeka57 [31]

I believe it would be: y = -0.5x + 7,5

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3 years ago

The sum of Ryann and Lori's ages is 96. Lori's age is<br> seven times Ryann's age. How old is Ryann?

Nata [24]

Answer:

R = 12

L = 84

Step-by-step explanation:

R + L =96

L = 7R

R = 1R

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3 years ago

The Atlanta Journal Constitution conducted a survey of 900 registered voters to determine which voting method they prefer. The A

photoshop1234 [79]

Answer:

a) (0.576, 0.624)

Step-by-step explanation:

Given that the sample proportion (p) = 60% = 0.6, sample size (n) = 900, confidence (C) = 85%

α = 1 - C = 1 - 0.85 = 0.15

α/2 = 0.075

The z score of α/2 (0.075) corresponds with the z score of 0.425 (0.5 - 0.075) which is equals to 1.44, hence $z_\frac{\alpha }{2} =1.44$

The margin of error (E) is:

$E=z_\frac{\alpha }{2} *\sqrt{\frac{p(1-p)}{n} } =1.44*\sqrt{\frac{0.6(1-0.6)}{900} } = 0.024$

The confidence interval = p ± E = 0.6 ± 0.024 = (0.576, 0.624)

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3 years ago

What percent of 218 ls 496? If necessary, round your answer to the nearest hundredth of a percent.

IgorLugansk [536]

Answer: A 2.28

Step-by-step explanation: Divide 496 by 218.

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3 years ago