SAT Practice Test(8)

disorder were the honeybees infected by all four pathogens? A) 0 percent B) 77 percent C) 83 percent D) 100 percent

51. Based on data in the table, which of the four pathogens infected the highest percentage of honeybee colonies without colony collapse disorder? A) IAPV B) KBV C) Nosema apis D) Nosema ceranae

52. Do the data in the table provide support for the authors‘ claim that infection with varroa mites increases a honeybee‘s susceptibility to secondary infections? A) Yes, because the data provide evidence that infection with a pathogen caused the colonies to undergo colony collapse disorder.

B) Yes, because for each pathogen, the percent of colonies infected is greater for colonies with colony collapse disorder than for colonies without colony collapse disorder.

C) No, because the data do not provide evidence about bacteria as a cause of colony collapse disorder.

D) No, because the data do not indicate whether the honeybees had been infected with mites.

Math Test – No Calculator 25 MINUTES, 20 QUESTIONS

Directions

For questions 1-15, solve each problem, choose the best answer from the choices provided, and fill in the corresponding circle on your answer sheet. For questions 16-20, solve the problem and enter your answer in the grid on the answer sheet. Please refer to the directions before question 16 on how to enter your answers in the grid. You may use any available space in your test booklet for scratch work.

Turn to Section 3 of your answer sheet to answer the questions in this section.

Notes

. The use of a calculator is not permitted.

. All variables and expressions used represent real numbers unless otherwise

indicated. . Figures provided in this test are drawn to scale unless otherwise indicated. . All figures lie in a plane unless otherwise indicated.

. Unless otherwise indicated, the domain of a given function f is the set of all real

numbers x for which f(x) is a real number.

Reference

1. A painter will paint n walls with the same size and shape in a building using a

specific brand of paint. The painter‘s fee can be calculated by the expression nKl",h, where n is the number of walls, K is a constant with units of dollars per square foot, l is the length of each wall in feet, and h is the height of each wall in feet. If the customer asks the painter to use a more expensive brand of paint, which of the factors in the expression would change? A) h B) l C) K D) n

2. If 3r = 18, what is the value of 6r + 3 ?

A) 6 B) 27 C) 36 D) 39

3. Which of the following is equal to a, for all values of a ? A) a B) a3 C) a 3121323D) 3a2

4. The number of states that joined the United States between 1776 and 1849 is

twice the number of states that joined between 1850 and 1900. If 30 states joined the United States between 1776 and 1849 and x states joined between 1850 and 1900, which of the following equations is true? A) 30x=2 B) 2x=30

x

C) =30

2

D) x+30=2

5. If 5=15 , what Is the value of 5?

xx+20xA) 10 B) 5

C) 2

1D)

26. x ? 3y = ?14

3x ? 2y = ?6

If (x, y) is a solution to the system of equations above, what is the value of x?y ? A) ?20 B) ?8 C) ?4 D) 8 7.

The function f is defined by a polynomial. Some values of x and f (x) are shown in the table above. Which of the following must be a factor of f(x)? A) x?2 B) x?3 C) x?4 D) x?5

8. The line y=kx+4,where k is a constant, is graphed in the xy-plane. If the line contains the point (c, d), where c 1 0 and d 10, what is the slope of the line in terms of c and d ?

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库SAT Practice Test(8)在线全文阅读。