Page 160 - Algebra 1

21.
(4)
22.
(3)
23.
(15)
24.
(1)
25.
(8)
26.
(10)
27.
(5)
*28.
(22)
29.
(13)
30.
(Inv 1)
Simplify _2 ÷ (-_7 )· (-_5 ). 522
Write Explain why k2 · m · b4 · c3 cannot be simplified using the Product Rule of Exponents.
Justify Write the expression so there are no parentheses. Justify your change with a property. 6(ab + ef )
Generalize Some real numbers can contain patterns within them, such as 21.12122122212222...
a. Find a pattern in the number above. Is the pattern you found a repeating
pattern?
b. Is this number a rational number or an irrational number? Explain.
Convert 630 cubic centimeters to cubic inches. (Hint: 1 in. = 2.54 cm) Multi-Step The temperature at 6 a.m. was 30°C. If the temperature increases by
2 degrees every half hour, what will the temperature be by 9 a.m.? What time will it be when the temperature is 50°C?
Simplify -⎪10 - 7⎥.
Internet Usage The circle graph shows
approximate total Internet usage in the world.
a. The estimated number of Internet users worldwide is 1,154,358,778. About how
many people in North America use the Internet?
b. About how many more people use the Internet in Asia than in North America?
Internet Usage per Region
Latin America/Caribbean 10%
North America 20%
Middle East 2%
Oceania/Australia 2%
Africa
3% Asia
35%
Europe 28%
Geometry A small square park is 784 square yards. A row of trees was planted
on one side of the park. One tree was planted at each corner. Then one tree was planted every seven yards between the corner trees. How many trees were planted in the row?
Quality Control Elite Style inspects 500 hair dryers manufactured and finds 495 to have no defects. There are 20,000 hair dryers in their warehouse.
a. What is the experimental probability that a hair dryer will have no defects?
b. Predict the number of hair dryers that will have no defects in the warehouse.
Lesson 24 145