Quantitative Flashcards by Phin Rowe | Brainscape

Q

1/9

A

.111= 11.1%

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Q

1/6

A

.166=16.6%

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Q

1/8

A

.125= 12.5%

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Q

log_ab=c

A

a^c=b

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Q

sum of interior angles

A

sum=(n-2)*180

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Q

diameter of a square

A

d=Lsqrt(2)

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Q

Sphere formulas

A

Volume: (4/3)π r³

SA=4π r²

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Q

Cylinder Formulas

A

Volume= V=Ah=πr²h

SA= 2πrh

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Q

Temperature Conversions

A

C=(F-32)/1.8

C= 5/9 * (F-32)

K=C+273

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Q

Trig identities

A

Cos² θ+sin² θ=1

1+tan²θ=sec²θ

cot²θ+1=csc²θ

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Q

domain and range of Cos

A

D: ARN

range: [-1,1]

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Q

domain and range of sin(x)

A

D: ARN

range: [-1,1]

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Q

domain and range of tan(x)

A

domain: (-pi/2, pi/2)
range: ARN

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Q

domain and range of cot(x)

A

D: (-pi,pi)

R: ARN

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Q

Domain and range of sec(x)

A

D:(-pi/2, pi/2)

R: (-inf, -1] u [1, inf)

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Q

domain and range of csc(x)

A

D:(-pi, pi)

R: (-inf, -1] u [1, inf)

Q

domain and range of sin^-1(x)

A

D: [-1,1]

Range: [-pi/2, pi/2]

Q

domain and range of cos^-1(x)

A

D: [-1,1]

Range: [0,pi]

Q

difference of cubes

A

a^3 +/- b^3= (a+/-b)(a^2 -(+/-) ab +b^2)

Q

domain an

A

Q

Derivatives: product rule

A

g* f’+ f*g’

Q

Derivative quotient rule

A

(g*f’ - f*g’) / g²

Q

Mean Statistics

A

population mean: μ

sample mean: x-bar

Q

Standard Deviation

A

population: sigma
sample: s

68% of data in +/- 1 stdev

95% of data in 2 stdev

99.7% within 3 stdev

Q

Z and t scores

A

z= (x- mu)/ sigma t= (x - xbar)/s

larger the number; further from mean.

Q

t score with sample size n

A

Q

Cos(pi/6)

A

sqrt(3)/2

Q

A