The formula is 2 number of elements in the set This set {1,2,3} has 3 elements, so the number of subsets is gotten by substituting 3 for the number of elements in the set: 2 number of elements in the set = 23 = 2x2x2 = 8 So there are 8 subsets. They are 1. { } or ∅, the empty set, sometimes called the "null" set. 2.

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3 years ago

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Question help there are 110 calories per 177.4 grams of cereal x. find how many calories are in 213.5213.5 grams of this cereal.

grin007 [14]

There are 132.39 Calories in 213.52 Grams of cereal.

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3 years ago

Write an equation in slope-intercept form of the line with the parametric equations x=9t and y=4t+2 .

Bingel [31]

$9t=x\qquad\text{divide both sides by 9}\\\\t=\dfrac{x}{9}\to t=\dfrac{1}{9}x\\\\\text{substitute to}\ y=4t+2\\\\y=4\left(\dfrac{1}{9}x\right)+2\\\\\boxed{y=\dfrac{4}{9}x+2}$

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3 years ago

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