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3 years ago

How do I graph this equation?

Mathematics

2 answers:

Kay [80]3 years ago

8 0

2x+4y=(-8)
-2x -2x
4y=-2x-8
Divide 4 from both sides
y=-2x-2
Can u graph that? Just comment if u need further instruction

juin [17]3 years ago

6 0

You have to solve it first.

2x+4y=-8
-2 =-2
-10
4y=-10
---
4y

4 divided by -10 is -4

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Find the cost of painting a cubical block of side length 3.2 cm, if painting costs $5 per cm2.

SashulF [63]

<h3>Answer:- </h3>

$\longrightarrow \sf \$ \: 307.2$

<h3>Solution:-</h3>

Since painting is done on outer surface of cubical block we will have to find its surface area which is given by-

$\green{ \underline { \boxed{ \sf{Surface \: area \:of \:Cube = 6a^2}}}}$

where a is side of the cube

$\begin{gathered}\\\quad \sf Surface \: area \:of \:Cube = 6\times(3.2)^2 \\\end{gathered}$

$\begin{gathered}\\\implies \quad \sf 6\times 3.2\times3.2 \\\end{gathered}$

$\begin{gathered}\\\implies \quad \sf 61.44 cm^2 \\\end{gathered}$

Now,

$\maltese \sf Cost \:of \:painting \: 1 \: cm² = \$ 5$

$\sf Cost \: of \: painting \: 61.44 \:cm²=61.44×5$

$\sf\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad=\$ 307.2$

$\leadsto$ Thus it would cost $ 307.2 to paint the entire cubical block.

3 0

3 years ago

5x-60 = -60 +2x +3x how many solutions does the equation have

xeze [42]

Answer:

$infinitely \: many \: solution$

Step-by-step explanation:

1) Cancle -60 on both sides.

$5x = 2x + 3x$

2) Simplify 2x + 3x to 5x.

$5x = 5x$

3) Since both sides are equal, there are infinitely many solutions.

$infinietly \: many \: solution$

Therefor, this equation has infinitely many solutions.

5 0

3 years ago

EASY POINTS! WILL GIVE BRAINLIEST!

quester [9]

The answer to this question would be 6 and the property would be the identity property

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4 years ago

So, the additive inverse of -7/8 is

zlopas [31]

Answer:

Im prett sure its 7/8

Step-by-step explanation:

The additive inverse of a number is a number that, when added, goes to zero. For example, 7 is -7 because when added it equals 0 (or 7-7)

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4 years ago

I need help what's the value of 4^-5 ?

sasho [114]

Step-by-step explanation:

${4}^{ - 5} = \frac{1}{ {4}^{ 5} } \\ \\ = \frac{1}{1024} = 1024 {}^{ - 1}$

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3 years ago