Page 733 - Algebra 1

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Translate the inequality 3z + 4 < 10 into a sentence.
Multiple Choice Which of the following radical equations will require the use of
division to isolate the radical?
A √ x-12=2 B √x +12=13
C _√ x = 5 D 14√ x = 70 7
Verify Solve √ x - 1 = √ 3x + 2. Check your answer.
_
Justify Solve √x = 32. Justify your answer.
4
Find the common ratio of the geometric sequence 18, -9, 4_1 , -2_1 , .... 24
Find the 6th term in the geometric series that has a common ratio of 2 and an initial term of 5.
Multi-Step Leila drops a ball from a height of 1 meter. The height of each bounce is 75% of the previous height.
a. What is the ball’s height after the first bounce?
b. What rule can be used to find the ball’s height after n bounces?
c. What is the height of the sixth bounce? Round your answer to the nearest
hundredth.
Geometry Each unit square in the figure represents 5 square feet. If the pattern continues, what will the area of the ninth figure be?
Botany The growth of an ivy plant in feet can be described by 2√ x - 4. How many days x will it take for the ivy to reach a length of 20 feet?
718
Saxon Algebra 1
-5x + 4y = -37 3x - 6y = 33
Fractals are geometric patterns that repeat themselves at smaller scales. The pattern shows fractals of equilateral triangles. How many unshaded triangles will be in the sixth figure?
Solve x2 + 9x = 4.75 by completing the square.
Error Analysis Two students started solving the equation 2x2 + 20x = -18 as shown
below. Which student is correct? Explain the error.
Solve
.
Fractals
Student A
2x2 + 20x = -18
x2 + 10x = -9
x2 + 10x + 25 = -9 + 25
(x+5)2 =16
Student B
2x2 + 20x = -18 x2 + 10x = -18
x2 + 10x + 25 = -18 + 25 (x+5)2 =7