Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 Enter your answers in the boxes. x= y=
Answers
Answer:
The solution would be (6, -11)
Step-by-step explanation:
In order to solve this system by substitution, simply take the value of y in the first equation and use it in place of y in the second. This will allow you to solve for x.
x = -2y - 16
x = -2(-3x + 7) - 16
x = 6x - 14 - 16
x = 6x - 30
-5x = -30
x = 6
Now that we have the value of x, we can find the value of y.
y = -3x + 7
y = -3(6) + 7
y = -18 + 7
y = -11
Answer:
Here is the break down of the answer x=6 and y=-11
Step-by-step explanation:
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What would be the coordinates at 315° if the coordinates at 135° are at (-square root 2/2, square root 2/2)?
For the love of God help me !! I'm desperate for it tomorrow
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96/12=8, which is the width of the rectangle.
What is the number?
A.
–98
B.
–56
C.
–14
D.
–7
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Answer:
The first one!
Step-by-step explanation:
Answer:
A correctly displays the number.
Step-by-step explanation:
18
21
215
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xyz=(x)(y)(z)
if x and y and z are all perfect cubes, xyz is also a perfect cube
remmeber
(x^n)^m=x^(mn)
so if it is perfect cube it can be factored into
(x^n)^3, such taht n is a whole number
basiclaly, see if the expoent is divisble by 3
all of them should be perfect cubes
215x^18y^3z^21
split them up to see which ones need changing
215=5*43, not a perfect cube
could be changed to 6^3, which is 216
x^18=(x^6)^3
y^3=y^3
z^21=(z^7)^3
the 215 needs to be changed
Answer: E2020 = 215
Step-by-step explanation: