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3 years ago

Solve each equation. Show your work please. Part 2

Mathematics

1 answer:

ki77a [65]3 years ago

6 0

Answer:

4) x=2.52 (3 s.f.)

5) x= -43

6) x= -184

Step-by-step explanation:

Please see attached picture for full solution.

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For what value of x is the rational expression below equal to zero? 3x+15 ——— 6-x

Inga [223]

$~~~~~~\dfrac{3x+15}{6-x} = 0\\\\\implies 3x +15 = 0\\\\\implies 3x = 0-15\\\\\implies 3x = -15\\\\\implies x = -\dfrac{15}3\\\\\implies x = -5$

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3 years ago

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Convert the following into degree measure: 7pi/12

Alex787 [66]

Since we know that there are 180° in π radians, then, how many degrees are there in 7π/12 radians?

$\bf \begin{array}{ccll}
de grees&radians\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
180&\pi \\\\
d&\frac{7\pi }{12}
\end{array}\implies \cfrac{180}{d}=\cfrac{\quad \pi \quad }{\frac{7\pi }{12}}\implies \cfrac{180}{d}=\cfrac{\quad \frac{\pi}{1} \quad }{\frac{7\pi }{12}}
\\\\\\
\cfrac{180}{d}=\cfrac{\underline{\pi} }{1}\cdot \cfrac{12}{7\underline{\pi} }\implies \cfrac{180}{d}=\cfrac{12}{7}\implies \cfrac{180\cdot 7}{12}=d\implies 105=d$

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3 years ago

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4 years ago

Evaluate g(x) = x2 + 5 given the inputs (-1,0,1,2}

mihalych1998 [28]

Answer:

g(-1) = 6

g(0) = 5

g(1) = 6

g(2) = 9

Step-by-step explanation:

Step 1: Plug in -1 for x

g(-1) = (-1)² + 5

g(-1) = 1 + 5

g(-1) = 6

Step 2: Plug in 0 for x

g(0) = 0² + 5

g(0) = 0 + 5

g(0) = 5

Step 3: Plug in 1 for x

g(1) = 1² + 5

g(1) = 1 + 5

g(1) = 6

Step 4: Plug in 2 for x

g(2) = 2² + 5

g(2) = 4 + 5

g(2) = 9

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3 years ago

Solve the formula Ax + By = C for A

7nadin3 [17]

Ax+By=C
Ax=C-By
A=C-By/x

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3 years ago

Solve each equation. Show your work please. Part 2​

Solve each equation. Show your work please. Part 2