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Sample set b
The length of a rectangle is 4 inches more than twice its width. The area is 30 square inches. Find the dimensions (length and width).
Step 1: Let
the width. Then,
the length.
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Practice set b
The area of a triangle is 24 square meters. The base is 2 meters longer than the height. Find the base and height. The formula for the area of a triangle is
height = 6 meters, base = 8 meters
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Sample set c
The product of two consecutive integers is 156. Find them.
This factorization may be hard to guess. We could also use the quadratic formula.
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Practice set c
Sample set d
A box with no top and a square base is to be made by cutting out 2-inch squares from each corner and folding up the sides of a piece of a square cardboard. The volume of the box is to be 8 cubic inches. What size should the piece of cardboard be?
cannot equal 2 (the cut would go through the piece of cardboard). Check
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Practice set d
A box with no top and a square base is to be made by cutting 3-inch squares from each corner and folding up the sides of a piece of cardboard. The volume of the box is to be 48 cubic inches. What size should the piece of cardboard be?
10 in. by 10 in.; 2 by 2 is not physically possible.
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Sample set e
A study of the air quality in a particular city by an environmental group suggests that
years from now the level of carbon monoxide, in parts per million, in the air will be
(a) What is the level, in parts per million, of carbon monoxide in the air now?
Since the equation
specifies the level
years from now, we have
(b) How many years from now will the level of carbon monoxide be at 8 parts per million?
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Questions & Answers
how did the oxygen help a human being
how did the nutrition help the plants
Biology is a branch of Natural science which deals/About living Organism.
evolutionary history and relationship of an organism or group of organisms
AI-Robot
cell is the smallest unit of the humanity biologically
Abraham
HOW CAN MAN ORGAN FUNCTION
the diagram of the digestive system
allimentary cannel
Ogenrwot
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
Genetics is the study of heredity
Misack
how does twins formed?
Misack
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
list any five characteristics of the blood cells
Shaker
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Source:
OpenStax, Elementary algebra. OpenStax CNX. May 08, 2009 Download for free at http://cnx.org/content/col10614/1.3
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