3 years ago

PLEASE HELP FASTTTTTTT

Mathematics

1 answer:

serious [3.7K]3 years ago

6 0

Answer:

the first one

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask

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Given the quadratic function : f(x)=x^24x-12<br> Find the vertex.<br> Can you show the steps?!?

vlada-n [284]

$\bf \textit{vertex of a vertical parabola, using coefficients}
\\\\
\begin{array}{llcccl}
\stackrel{f(x)}{y} = & 1x^2& +4x& -12\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}
\qquad 
\left(-\cfrac{ b}{2 a}\quad ,\quad c-\cfrac{ b^2}{4 a}\right)
\\\\\\
\left(-\cfrac{4}{2(1)}~~,~~-12-\cfrac{4^2}{4(1)} \right)\implies (-2~~,~~-12-4)\implies (-2~~,~~-16)$

6 0

3 years ago

If 5<2x+3<11, what is the possible range of value of -4x-6

Lady bird [3.3K]

Answer:

-10 > (-4x - 6) > -22

Step-by-step explanation:

Given inequality is 5 < 2x + 3 < 11

Now we will multiply this inequality by (-2) resulting,

5(-2) > (2x + 3)(-2) > 11(-2)

-10 > (-4x - 6) > -22 (Sign of inequality gets reversed when the inequality is multiplied or divided by a negative number)

Therefore, the possible range of (-4x - 6) is between -22 and -10.

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4 years ago

How many pints is 24 quarts?

likoan [24]

1 quart ---- 2 pints
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x=24*2/1=48 pints

or
24quarts*(2 pints/1 quart)=48 pints

4 0

3 years ago

Original price: $48; Markup: 12.5%

bogdanovich [222]

Answer:

6.86

Step-by-step explanation:

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3 years ago

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Elanso [62]

Answer: 1/3x

Step-by-step explanation:

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3 years ago