11. A quadratic inequality is an equation in the
form
a. ax + b < 0.
b....
Mathematics, 22.09.2021 14:00 karenrivera22
11. A quadratic inequality is an equation in the
form
a. ax + b < 0.
b. ax + b>0 where ar0 or with <,>, or < c. ax²+bx+c> 0 where a # 0 or with >, S, 2, or <. d. ax +by+c> 0 where a#0 or with >, S. 2, or <
12. What is the domain of the given quadratic
function y = 4x²?
a. all positive real numbers c. all real
numbers
b. all negative real numbers d. all non-real
numbers
13. Ms. Joy wants to build a garage for her new car where the length is 5 feet longer than the width. The area should be greater than 150 ft. Which is a possible width of the garage? a. 6 ft
b. 8ft c. 10 ft d. 12 ft 14. A car travels a distance of d km in t hours. The formula that relates d to t is d= kt. What kind of
variation is it?
a. Direct b. Inverse c. Joint
Combined
15. Which of the following describes the inverse a. The number of hours to finish a job to the number of men working. b. The area of the wall to the amount of paint used
variation?
to cover it.
c. The time a teacher spends checking papers to
the number of students.
d. The amount of money raises in a concert to the
number of fickets sold.
16. Which of the following equation represents the
situation: the acceleration (a) of a moving object varies directly as the distance (d) it travels and Inversely as the square of the time (1) it travels. a. a= kt/d b. a=kdt c. a=kd/12 d. a=k/dt
17. When x=5, y=10 and when x=2, y = 4. This is an example of
a. Direct Variation c. Inverse Variation b. Joint Variation d. Combined Variation
18. Which is an example of a direct variation? a. xy=5 b. y 2x c. y=3/x d. ½ =x
19.If x is directly proportional to y, and k is the constant of proportionality, the relationship maybe expressed as a. x=ky b. x=k/y c. xy=k d. y=k/x
Answers: 1
Mathematics, 21.06.2019 17:30
Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?
Answers: 3
Mathematics, 21.06.2019 18:00
The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old
Answers: 1
Mathematics, 21.06.2019 19:30
Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 20:30
1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]
Answers: 1
Social Studies, 29.07.2019 12:40
Mathematics, 29.07.2019 12:40
Mathematics, 29.07.2019 12:40
Biology, 29.07.2019 12:40
Chemistry, 29.07.2019 12:40
Chemistry, 29.07.2019 12:40
Chemistry, 29.07.2019 12:40
Health, 29.07.2019 12:40
Health, 29.07.2019 12:40
Health, 29.07.2019 12:40
Social Studies, 29.07.2019 12:40
Business, 29.07.2019 12:40
English, 29.07.2019 12:40
English, 29.07.2019 12:40
History, 29.07.2019 12:40
Business, 29.07.2019 12:40
Arts, 29.07.2019 12:40