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100

Simplify (log714 + log712) - log42

log784

100

What is i12?

1

100

A row team went 18 miles in 2 hours with the current, and 8 miles in 2 hours against the current. What is the speed of the current? 

2.5 mph

100

Find the measure of angle x.

38

100

What is |-15| - |6| + |-3+2|?

10

200

Solve log.1666666...

-1

200

(11-5i) - (-12-3i

23-2i

200

A jet flying with a tailwind traveled 1680 miles in 3 hours. Against the wind, it flew 1960 miles in 4 hours. What is the speed of the jet in still air?

525 mph

200

What is the measure of angle DEA?

43

200

Solve |x-5| =3

x = 8,2

300

Simplify 3logA - 2logB

log(A3/B2)

300

What is i221?

i

300

You need 10 liters of a 15% acid solution. How many liters of 10% solution and 30% solution should you mix to create this?

2.5 of 30% and 7.5 of 10%

300

What is the value of x?

65

300

Solve |3x - 4| > 17

x>7 or x<-4.3333

400

Expand log5((xy)3/z)

3log5x + 3log5y - log5z

400

(2+3i)(4-6i)

26

400

Peanuts sell for $3.00 per pound. Cashews sell for $6.00 per pound. How many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture that sells for $4.20 per pound?

8

400

What is the value of x?

17.55555

400

Solve 3|2x - 4| + 12 = 8

No solution

500

Solve log68 + 3log63 - log61

3

500

Simplify (6-7i) / (1-2i)

4+i

500

How many liters of a 70% alcohol solution must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol solution?

25

500

What is the length of chord BC?

9.5

500

3|3 − 5r| − 3 = 18

x = -.8, 2

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