3 years ago

What is the standard form of this number? (8 0.1) + (5 * 0.01) + (1 x 0.001) =

Mathematics

1 answer:

Delicious77 [7]3 years ago

3 0

Answer:

0.851

Step-by-step explanation:

Multiply the numbers, add.

0.8 + 0.05 + 0.001 = 0.851.

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3 years ago

the vertex of this parabola is at (3,5). When the y-value is 6, the x-value is -1. What is the coefficient of the squared term i

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Now, assuming is a vertical parabola, so the squared variable is the "x", let's do some checking.

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex
\begin{cases}
h=3\\
k=5
\end{cases}\implies y=a(x-3)^2+5
\\\\\\
\textit{we also know that }
\begin{cases}
y=6\\
x=-1
\end{cases}\implies 6=a(-1-3)^2+5
\\\\\\
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3 years ago

Find the value of x if the arithmetic mean of 3 and 3x+5 is 8?

mina [271]

Answer:

Step-by-step explanation:

3x+5=8

Group like terms

3x=8-5

3x=3

Divide both side by the co-efficient of x which is 3

3x/3=3/3

x=1

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