Substitute -1 for x. Simplify.

Is (–5, 0.5) a solution of this system?x – 4y = –7, 0.2x + 2y = 0 Substitute (–5, 0.5) into x – 4y = –7 to get .
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1.To solve the linear system below, which substitution of unkowns is proper ?A.substitute 5x-16 for y in the first eqn
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2. asked by Ley
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When you evaluate an expression, you substitute a number in for a__________. For example, to evaluate the expression 4y+3 for
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Substitute -2x for f(x) in -f(x) and simplify.
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2x + 3y +9When x=0 and y=1. Substitute & Simplify.
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ab/b + aWhen a=4 and b=2. Substitute & Simplify.
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Substitute -1 for x. Simplify.If f(x) = 4x-3, find the following. f(-1)
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2. asked by MathGuru
3. 375 views
Evaluate and simplify cos(-15º). Hint: Substitute 30º-45º for -15º.
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2. asked by Anonymous
3. 470 views
The rate r is given. Substitute θ = π/6 in the equation for r and then simplify.r = 45π sec^2 θ ???
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2. asked by Anonymous
3. 411 views
Given f(x) = 3(x − 4)2𝑓 ( 𝑥 ) = 3 ( 𝑥 − 4 ) 2 what is f(3)? Show your work below (1 point) f(3)= 𝑓 ( 3 ) =
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2. asked by ionk
3. 21 views