-16 + 2(3 + 4x) due soon

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

6 0

Multiple each term in the brackets by 2
-16 + 2•6 + 2•4x
-16 + 12 + 8x
-4 + 8x

zysi [14]3 years ago

3 0

-4+8x

Step-by-step explanation:

Distribute the 2 within parpahses making it -16+12+8x

Then combine like terms -16+12=--4

So your left with -4+8x

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Round 78482 to the nearest ten thousand

nekit [7.7K]

Answer:

80000

Step-by-step explanation:

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3 years ago

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Multiply the additive inverse of (-7/8) by the reciprocal of (5 1/2)<br><br>PLEASE HELP!

EleoNora [17]

Answer:

$\bold {$\dfrac{7}{44}$}$

Step-by-step explanation:

<h3> Reciprocal:</h3>

$\sf \text{The reciprocal of any number $\dfrac{a}{b}$ is given by $\dfrac{b}{a}$}\\\\5\dfrac{1}{2}=\dfrac{11}{2}\\\\\text{Reciprocal of $\dfrac{11}{2}$ = $\dfrac{2}{11}$}$

<h3>Additive inverse:</h3>

$\text{Additive inverse of $\dfrac{-7}{8}$=$\dfrac{7}{8}$}$

Now multiply,

$\sf \dfrac{7}{8}*\dfrac{2}{11}=\dfrac{7}{4}*\dfrac{1}{11}\\$

$=\dfrac{7}{44}$

7 0

2 years ago

3) An existing track is perpendicular to y=1/2x + 2 and passes through B(7,5)

stira [4]

Answer:

2. $y=\frac{1}{2}x +3$

Step-by-step explanation:

2. The line will be parallel to the current track which means they have the same slope. To write the equation, use the slope m=1/2 and the point (2,4) in point slope form:

$y-y_1=m(x-x_1)\\y-4=\frac{1}{2}(x-2)$