Mathematics, 27.07.2020 01:01 Tyrant4life
Unit test Problem Becky tried to evaluate an expression step by step. \quad\begin{aligned} &\dfrac{4}{5} +7 -\dfrac{5}{4} \\ =&\dfrac{4}{5} -\dfrac{5}{4}+7&\green{\text{St ep } 1} \\ \\ =&0+7&\blue{\text{Step } 2} \\ \\ =&7&\purple{\text{Step } 3} \\ \\ \end{aligned} = = = 5 4 +7β 4 5 5 4 β 4 5 +7 0+7 7 Step 1 Step 2 Step 3 Find Becky's mistake.
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When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:
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What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)
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Mathematics, 21.06.2019 21:40
Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.
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Unit test Problem Becky tried to evaluate an expression step by step. \quad\begin{aligned} &\dfr...
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