Mathematics, 04.11.2019 19:31, jescanarias22
1)
what is the solution to the system of equations?
-2x + y = -5
3x β 2y = 12
a) (3, 1)
b) (6, 3)
c) (-2, -9)
d) (-2, -1)
2)
y = x + 2
2x - y = -4
solve the system of equations using substitution.
a) (-2,-4)
b) (-2,0)
c) (-6,-4)
d) (-6,8)
3)
x = y + 4
2x - 3y = -2
what is the solution to the system of equations?
a) (6, 10)
b) (9, 5)
c) (10, 6)
d) (14, 10)
4)
x + 2y = 3
3x - 2y = 5
what is the solution to the system of equations?
a) (4, 3.5)
b) (2,
1
2
))
c) (2, -1)
d) (
1
2
, 2)
5)
use the graph method to solve the system of linear equations:
2x + y = 3 and x + y = 3
a) (-1.5, 0)
b) (0, -1.5)
c) (0, 3)
d) (3, 0)
6)
y = β
1
3
x + 2
y = x + 2
what is the solution to the system of equations?
a) (0, 2)
b) (2, 0)
c) (-1, 3)
d) (0, -2)
7)
x = y - 3
x + 3y = 13
what is the solution to the system of equations?
a) (1, 4)
b) (4, 1)
c) (7, 4)
d) (2.5, 5.5)
8)
how many solutions can be found for the system of linear equations represented on the graph?
a) no solution
b) one solution
c) two solutions
d) infinitely many solutions
9)
which graph represents the solution for the equation
1
2
x - 1 = -x + 2?
a) a
b) b
c) c
d) d
* hover over answer image to enlarge
10)
x + 3y = 5
-x + 6y = 4
solve the system of equations.
a) x = 1, y = 2
b) x = 2, y = 1
c) x = 1, y = 1
d) x = 0, y = 2
11)
find the solution to the system of equations graphed here.
a) (-1, -3)
b) (1, -3)
c) (1, 3)
d) (3, 1)
12)
how many solutions can be found for the system of linear equations represented on the graph?
a) no solution
eliminate
b) one solution
c) two solutions
d) infinitely many solutions
13)
use the graph method to solve the system of linear equations:
y - x = -2 and 2x + y = 7
a) (0,7)
b) (2,0)
c) (3.5,0)
d) (3,1)
14)
identify the solution for the system of equations graphed here.
a) (1, 1)
b) (-1, 1)
c) (1, -1)
d) (-1, -1)
Answers: 1
Mathematics, 21.06.2019 14:10, sebastianapolo5
Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
Answers: 2
Mathematics, 21.06.2019 19:30, Flaka2809
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the surveyβs sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
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In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
1)
what is the solution to the system of equations?
-2x + y = -5
3x β 2y =...
what is the solution to the system of equations?
-2x + y = -5
3x β 2y =...
Mathematics, 26.03.2020 04:38
Mathematics, 26.03.2020 04:38
History, 26.03.2020 04:38
Mathematics, 26.03.2020 04:38
History, 26.03.2020 04:38
Mathematics, 26.03.2020 04:38
Mathematics, 26.03.2020 04:38