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Thepotemich [5.8K]
3 years ago
8

Y = x+1

Mathematics
1 answer:
12345 [234]3 years ago
8 0
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
−
2
,
−
1
)
(
-
2
,
-
1
)
Equation Form:
x
=
−
2
,
y
=
−
1
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F(x)= 2/3x -6 what is the value of f(-9)
STALIN [3.7K]

f(-9) means x is -9

Replace x with -9 and solve:

2/3(-9) - 6

Simplify:

-6 - 6 = -12

f(-9) = -12

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A high school purchases two workbooks for every textbook, and two journals for every workbook. If the school purchases 301 total
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What number represents 100% of the fall student athlete
natta225 [31]

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62

Step-by-step explanation:

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Ahat [919]

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Solve x^4 - 3x^2 +2 = 0 using substitution.
Leona [35]

Answer:

x = ± 1 , x = ± \sqrt{2}

Step-by-step explanation:

Let u = x² , then

x^{4} - 3x² + 2 = 0 , can be expressed as

u² - 3u + 2 = 0 ← in standard form

(u - 1)(u - 2) = 0 ← in factored form

Equate each factor to zero and solve for u

u - 1 = 0 ⇒ u = 1

u - 2 = 0 ⇒ u = 2

Change the variable u back to x

x² = 1 ( take square root of both sides )

x = ± 1

or

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x = ± \sqrt{2}

4 0
2 years ago
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