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Art [367]
3 years ago
15

I need to know 3a through 3e please!

Mathematics
1 answer:
jonny [76]3 years ago
6 0
You are seriously all it take is cross multiplying
You might be interested in
What is 25+120-10x=10x-35=
Alexandra [31]
145-10x=10x-35

Add 35 to both sides.

175-10x=10x

Add 10x to both sides.

175=20x

Divide both sides by 20

8.75=x


6 0
2 years ago
Hi, Could anyone help me with my homework
tatiyna

Answer:

\hookrightarrow \sf  x^6+24x^5+240x^4+1280x^3+3840x^2+6144x+4096

solving steps:

\rightarrow \sf (x + 4)^6

\bold{rewrite \ the \ following}

\rightarrow \sf (x + 4)^2   (x + 4)^2   (x + 4)^2

\bold {formula \ used : \sf  (x+a)^2 = (x^2 + 2xa + a^2)}

\rightarrow \sf (x^2 + 8x+16)    (x^2 + 8x+16)    (x^2 + 8x+16)

\bold{simplify \ by  \ removing \ parenthesis}

\rightarrow \sf (x^4 +8x^3 + 16x^2 + 8x^3 +64x^2 + 128x+16x^2+128x+256 ) (x^2 + 8x+16)

\bold{basic \ addition \ of \ integers }

\rightarrow \sf (x^4+16x^3+96x^2+256x+256) (x^2 + 8x+16)

\bold{remove \ parenthesis}

\rightarrow \sf (x^6 + 16x^5 + 96x^4 + 256x^3 + 256x^2 + 8x^6 + 128x^4 + 768x^3 + 2048x^2 + 2048 + 16x^4 + 256x^3 + 1536x^2 + 4096x + 4096)

\bold {final \ answer:}

\rightarrow \sf  x^6+24x^5+240x^4+1280x^3+3840x^2+6144x+4096

8 0
2 years ago
A pool in the shape of s rectangle has a perimeter 80 feet. The pool is 8 feet less wide than it is long
kykrilka [37]
So, 80 - 8. equals 72 / 2  = 36... then add 36 + 8 to one and you have 44...
44 for length and 36 for width 
3 0
3 years ago
Read 2 more answers
If y varies inversely as x and y = 27 when x = 12 , find x when y = - 9 .
Sergio039 [100]

Answer:

x = - 36

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition y = 27 when x = 12, then

k = yx = 27 × 12 = 324, thus

y = \frac{324}{x} ← is the equation of variation

When y = - 9, then

- 9 = \frac{324}{x} ( multiply both sides by x )

- 9x = 324 ( divide both sides by - 9 )

x = - 36

3 0
3 years ago
Please help i will mark brainly
Vsevolod [243]
The answer to your question is positive
8 0
2 years ago
Read 2 more answers
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