Domain 2 Flashcards

1
Q

what is the formula for area of a trapezoid?

A

h(b1 + b2)/2

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2
Q

what is the formula for surface area of a circle?

A

2πr

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3
Q

what is the formula for surface area of a cylinder?

A

2πrh + 2πr^2

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4
Q

what is the formula for surface area of a sphere?

A

4πr^2

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5
Q

what is the formula for volume of a sphere?

A

(4/3)πr^2

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6
Q

when do ou have to reverse the direction of an inequality symbol?

A

if you mulitply or divide by a negative number

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7
Q

what are the steps for factoring polynomials?

A

identify a monomial factor

find the numbers whose product is the last term and sum is the coefficient

assign the factors accordign to the middle term

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8
Q

what should be done if a monomial factor cannot be identified in a polynomial?

A

use double parenteses and factor the first terms.

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9
Q

what is a quadratic equation?

A

an equation that can be written:
ax^2 + bx + c

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10
Q

what are the steps for solving a quadratic equation?

A

put all terms on one side an a zero on the other
factor
set each factor equal to zero
solve

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11
Q

what is the formula for the volume of a cylinder?

A

πr^2h

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