Seeking solutions
- methods used to preserve and protect endangered species, manage populations of
wild organisms and ensure wise use of living resources are all forms of wildlife
conservation
- this
7. Determine the length ofx, to the nearest tenth of a metre.
a. 5.2111 c. 12.3111
b. 9.311: (1. 14.7111
8. Determine the length of x, to the nearest tenth of a eenmetre.
a. 13.5 cm c. 68.6111
b.
19. Simpr: ELEV: _
a. CV; c. 2J3;
I). 8 x9 d. Ii]; '
20. Pam expanded and simplied (x 3 )(x2 + 2x 4 ) as shown below;
In which step was Pams rst error?
a. Step I c. Step HI
1). Step ]I d. There is n
/
init 1 Assignment:
Multiple Choice
Identt the choice that best completes the statement or 01151478719 the question.
1. Which referent best represents a length of 1 cm?
a. the height of a doorknob
Unit 2 Refriew Assignment
Multiple Choice
Infant 151 the choice that best completes the Statement or answers the question;
1. What IS the value of 14454?
:1. g c. g
49 . 7
b. 22 (L BA
49 l' ' 7
2. Eva
. What is the'product of (x + 3) and (x + 4)?
a. f+7x+12 c. x2+12
b. x2+12x+7 - d. +7
The factors of 6x2 8x are
a. 2,x,and4x3 c. 2,x,and3x4
b. 2,0,311di d. 2, x, ad4x3
. Which of the foHOWing expres
2.
11. As Tracy is driving, she sees a sign telling her the road has a 7% grade (Le. a rise of 7 meters for a horizontal
change of 100 meters). Which of the following expressions will calculate the
Problem
1. Stella is planning to go on a trip. Her vacation clothes are kept in a drawerthat measures 60 cm by 50 cm by
34 cm. Her suitcase measures 85 cm by 40 cm by 30 cm. Can Stella pack all her va
,ort Answer
1
l 2 3
4x 3 (9x)
1. Simplify the expression w1~-, express your answer using 0111! positive exponents.
(272:)? I I
2. Identify the irrational numbers in this set. Order all the numbers fro
/
f \.
iortAnswer ;
'3. A water storage tank has a right cylindrical base and a domed top. The base has a diameter of 10 m and a
height of 12 m. The top is half a sphere with the same diameter as the
Fossil Fuels and Minerals
Energy Conservation
- in 1973 the first fuel shortage crisis hit the USA and made us realize our
dependence on fossil fuels
- conservation techniques in your home
- replace b
What can be Done about Pollution?
Conservation
- conservation is the wise use of resources to extend their supply
- this would allow nonrenewable resources to last longer
- reduce the amount of pollut
Protecting the Environment
- people can help prevent pollution by using energy wisely and by discarding
wastes safely
Safeguarding the air
- gases and particles given off when fuel is burned are calle
Grassland
- between 25 and 75 cm of precipitation / yr
- grasses are the main plant form since fires and migrating animals allow only
grasses to develop
- sometimes called savannas, or pampas
- many m
Living things and their Environment
- an environment consists of all the living and nonliving things with which an
organism may interact
- livings things don't just exist within an environment, they i
Interaction and Evolution
- each organism has a unique role or duty to play in its community
- this role is called a niche
- it is possible that more than 1 organism can have the same habitat within a
Biogeography
- the study of where plants and animals live throughout the world
- climate determines the types of plants, the types of plants determine the
herbivores and the herbivores determine the c
Adapting to the Environment
- theory of natural selection states that if a trait is beneficial to the survival of the
species it will be passed on to future generations but if a trait is not beneficia
Identifying problems
- the island of Mauritius was the home of the dodo bird
- sailors for over a hundred years, clubbed them to death and they still survived
- settlers and the animals that settlers
Name: Class: Date: ID: A
XPONENTS AND RADICALS: Non-Calculator Portion 112
Short Answer
1. Simplify each expression. Write the answer using positive exponents. Do not evaluate. (4 marks)
(2.5)3
a) (25