Mathematics

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Questions

Makoi bech Chagai

Expand \( (2x + 1)^2 \).

Anonymous

A shopkeeper takes a 10% profit on his goods. He lost 20% of his goods during a theft. What is his loss percentage?

Braiton Lugano

Calculate the hardness of water in ppm of calcium, given that the volume of EDTA is 1.3 cm³ with a molarity of 0.01 M and the volume of the sample taken is 50 cm³.

Puja Ganguly

If someone gets 83% in one subject, how much should he score in the second term to achieve a total of 90%?

Puja Ganguly

If someone gets 87.7% in the first term, how much should he get in the second term to achieve a total of 90%?

Puja Ganguly

If someone got 87.7% in the first term, how much should he get in the second term to achieve 90.5%?

Anonymous

What is the difference between a row and a column?

Anonymous

What is rectilinear motion?

Anonymous

Conversion of feet into inches.

Anonymous

How to convert inches to meters?

Anonymous

Give me a equation of Glucose+glucose=maltose +water?

Anonymous

Who was the first to compute digits in the decimal expansion of π?

Anonymous

What is the first algorithm to compute digits in the decimal expansion of π?

Anonymous

Logarithm questions.

Anonymous

The distance between the sun and the Earth is about 1.3×10¹¹ meters. Express this distance using a prefix.

Anonymous

Express the following times in minutes and seconds: a. 0.25 hours b. 3.2 hours c. 6.7 hours

PATRICK NJORI

A tank measures 4m long and 3m wide. If the volume of this tank is 72m³, find the height of the tank.

PATRICK NJORI

Peter's farm, which is rectangular in shape, measures 190 m long by 96 m wide. What is the perimeter and area of the farm?

Anonymous

A hydrogen atom has a diameter of about 10 nm. a. Express this diameter in meters. b. Express this diameter in millimeters. c. Express this diameter in micrometers.

PATRICK NJORI

Baka bought 4 pencils and 6 pens for sh. 66. Helen bought 2 pencils and 5 pens for sh. 51. Calculate the price of each item.

Anonymous