Answer:
(2, - 1 )
Step-by-step explanation:
3x - y = 7 → (1)
2x + 3y -= 1 → (2)
multiplying ( 1) by 3 and adding to (2) will eliminate y
9x - 3y = 21 → (30
add (2) and (3) to eliminate y
11x = 22 (divide both sides by 2 )
x = 2
substitute x = 2 into either of the 2 equations and solve for y
substituting into (2)
2(2) + 3y = 1
4 + 3y = 1 (subtract 4 from both sides )
3y = - 3 ( divide both sides by 3 )
y = - 1
solution = (2, - 1 )
Answer:
0.200
Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
6*x-4-(-4*x-2)=0
Step by step solution :
STEP 1
1.1 Pull out like factors :
10x - 2 = 2 • (5x - 1)
STEP 2
2.1 Solve : 2 = 0
A a non-zero constant never equals zero.
Solving a Single Variable Equation:
2.2 Solve : 5x-1 = 0
Add 1 to both sides of the equation :
5x = 1
Divide both sides of the equation by 5:
x = 1/5 = 0.200
solution:
x = 1/5 = 0.200
Answer:
Step-by-step explanation:
A discrete variable is one which can be counted or which can be associted with the set of natural numbers.
A continuous variable is one which cannot be counted.
a. of unbroken eggs in a randomly chosenstandard egg carton
--Discrete
b. of students on a class list for a particular course who are absent on the first day of classes
----Discrete
c. of times a duffer has to swing at a golfball before hitting it
----Discrete
d. of a randomly selected rattlesnake
--Continuous
e. of royalties earned from the sale of a firstedition of 10,000 textbooks
--Continuous
f. of a randomly chosen soil sample
--Continuous
g. (psi) at which a randomly selected tennisracket has been strung
--Continuous
h. number of coin tosses required for threeindividuals to obtain a match (HHH or TTT)
---Discrete
Answer:
a = 150
Step-by-step explanation:
The sum of the internal angles of an octagon is 1080°.
(There are four 
and 4 
, they sum to 1080°)
Hope this helps :)
