Quick Math

Exponents

100

x^1/4 x^2/4

x^3/4

200

x^1/7 x^4/7

x^5/7

300

x^4/6 x^1/6

x^5/6

400

4⁶/4⁵

4

Margin of Error - General

100

A survey was given to a random sample of voters in the United States to ask about their preference for a presidential candidate. The percentage of people who said they preferred Candidate A was 78%. The margin of error for the survey was 4%. 

 (74%,82%)

200

A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to increase education spending. The percentage of people who said the supported the plan to raise taxes was 30%. The margin of error for the survey was 5% .

(25%,35%)

300

A survey was given to a random sample of voters in the United States to ask about their preference for a presidential candidate. The percentage of people who said they preferred Candidate A was 33%. The margin of error for the survey was 2.5%.

(30.5%,35.5%)

400

A study was commissioned to find the mean weight of the residents in certain town. The study found a confidence interval for the mean weight to be between 165 pounds and 173 pounds. What is the margin of error on the survey?

The margin of error is 4

500

A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study found a confidence interval for the mean score to be between 483 and 523. What is the margin of error on the survey?

The margin of error is 20

Simplify Imaginary Expressions

100

If a=−1−5i and b=−2x, then find the value of the ab³ 

8x³+40x³i

200

If a=−2x and b=2x−5i, then find the value of the a³b

−16x⁴+40x³i

300

If a=−4+2i and b=−2, then find the value of the ab².

−16+8i

400

If a=2i and b=2, then find the value of the ab³

16i

unit circle

100

In what quadrant are sin,cos, and tan positive? 

What is Quadrant 1? 

200

In what quadrant is sin and tan negative and cos positive? 

Quadrant 4

300

In the quadrant that has both negative sin and cos, what is the tan?   

Quadrant 3

400

What Quadrant is sin the only one  that is positive?

Quadrant 2

Formula

100

Exponential Growth formula 

y=a(1+r)^t

200

What formula do you use to change radians to degrees?

3.14/180 * radians 

300

What is the formula for compound interest?

A = P (1 + r/n)^nt

400

what the formula for slope.

rise/run

500

What does e rounded to the nearest hundredth? 

2.72