Answer:
(x, y) = (5, 7)
Step-by-step explanation:
It can be useful to put these equations into standard form, with mutually-prime coefficients and a positive x-coefficient.
10x +y -(4x +4y) = 9 . . . . . subtract the variable terms on the right
6x -3y = 9 . . . simplify
2x -y = 3 . . . . . divide by 3 to put in standard form
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(x +10y) -(10x +y) = 18 . . . . . subtract the variable terms on the right
-9x +9y = 18 . . . simplify
x -y = -2 . . . . . . . divide by -9 to put in standard form
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Now, we can subtract the second equation from the first.
(2x -y) -(x -y) = 3 -(-2)
x = 5
y = x+2 = 7 . . . from the second simplified equation
The solution is (x, y) = (5, 7).
Answer:
Statement B, C, E are correct
<u>Solution:</u>
We have to find the true statements
We know that,
To find the diameter of a circle, multiply its radius by two
Thus statement E is correct
Also,
To find the diameter of a circle, divide its circumference by π
Thus statement B is correct
circumference of a circle is obtained by multiplying diameter with pi
The circumference of a circle is greater than its diameter
Thus, Statement C is correct
Answer:
[−7,−5)∩[−5,0] = [-5]
Step-by-step explanation:
A = A1 ∩ A2 means that A contains the intersected elements (shared elements) of A1 and A2
Answer:
Step-by-step explanation:
(29, 35) (43, 21)
(21 - 35)/(43 - 29) = -14/14 = -1
y - 35 = -(x - 29)
y - 35 = -x + 29
y = -x + 64
Answer: something is wrong circumference is solved by pi times the diameter or pi times the radius times 2
40 x 3.14 = 125.6
Step-by-step explanation:
Sorry man
