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4 years ago

Please help quickly !

Mathematics

1 answer:

GalinKa [24]4 years ago

8 0

Answer:

1. multiplication property of equality

2. division property of equality

Step-by-step explanation:

1. multplied by -3/2

2. divided by -2/3

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Write an equation of the line in slope-intercept form given the

zlopas [31]

Y=mx+b
m=slope=-5
b=yintercept=7

y=mx+b
y=-5x+7

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3 years ago

(x-1)(2x+2)<br> Can you please show all of your work.

Komok [63]

Answer:

2x^2 - 2

Step-by-step explanation:

FOIL:

First outer inner last.

So we take (x-1) and (2x+2) and multiply the two first terms together.

2x^2

Next, we do the two outer terms.

2x^2 + 2x

Inner is next.

2x^2 + 2x - 2x

Then the last two terms in the equation.

2x^2 + 2x - 2x - 2

Then simplify:

2x^2 - 2

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3 years ago

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Which number is irrational? explain why?<br> a) -(9) b) 4.0005<br> c)2.17 d) (40)

ahrayia [7]

Answer:

√40 is an irrational number

Step-by-step explanation:

"An irrational number is a real number that cannot be expressed as a ratio of integers, for example, √ 2 is an irrational number."

7 0

3 years ago

Describe the translation of the function from the parent function f(x) = x².

kkurt [141]

$\bf \qquad \qquad \qquad \qquad \textit{function transformations}
\\ \quad \\\\

\begin{array}{rllll} 
% left side templates
f(x)=&{{ A}}({{ B}}x+{{ C}})+{{ D}}
\\ \quad \\
y=&{{ A}}({{ B}}x+{{ C}})+{{ D}}
\\ \quad \\
f(x)=&{{ A}}\sqrt{{{ B}}x+{{ C}}}+{{ D}}
\\ \quad \\
f(x)=&{{ A}}(\mathbb{R})^{{{ B}}x+{{ C}}}+{{ D}}
\\ \quad \\
f(x)=&{{ A}} sin\left({{ B }}x+{{ C}} \right)+{{ D}}
\end{array}$

$\bf \begin{array}{llll}
% right side info
\bullet \textit{ stretches or shrinks horizontally by } {{ A}}\cdot {{ B}}\\\\
\bullet \textit{ flips it upside-down if }{{ A}}\textit{ is negative}
\\\\

\end{array}\\$

$\bf \begin{array}{llll}
\bullet \textit{ horizontal shift by }\frac{{{ C}}}{{{ B}}}\\
\qquad if\ \frac{{{ C}}}{{{ B}}}\textit{ is negative, to the right}\\\\
\qquad if\ \frac{{{ C}}}{{{ B}}}\textit{ is positive, to the left}\\\\
\bullet \textit{ vertical shift by }{{ D}}\\
\qquad if\ {{ D}}\textit{ is negative, downwards}\\\\
\qquad if\ {{ D}}\textit{ is positive, upwards}\\\\
\bullet \textit{ period of }\frac{2\pi }{{{ B}}}
\end{array}
$

now, notice the template above... now let's see your function $\bf y=x^2+4\implies 
\begin{array}{llllll}
y=&1(&1x&+&0)^2+&4\\
&A&B&&C&D
\end{array}$

so.. what do you think was the shift then?

8 0

3 years ago

3x+6 and 2x+14 find value of x

Vanyuwa [196]

Answer:

Step-by-step explanation:

3x+2x is 5x

6+14 is 20

5x+20

if you are looking for this answer

x=4

divide 5 by 5x and 20 by 5

8 0

3 years ago

Read 2 more answers