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sdas [7]
3 years ago
5

Please help me with this

Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0

Answer:

9x squared + 12x

Step-by-step explanation:

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If x - 3 =4 <br> -2 (x + 5)<br> Then x =what?
Ostrovityanka [42]

Answer:

someone help me with this ASAp

Step-by-step explanation:

4 0
3 years ago
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Work out the value of six squared plus three cubed
IrinaK [193]

Answer:

63

Step-by-step explanation:

Based off of the question,we have a word problem that can be interpreted as the following. 6²+3³= ?

6² is the same as 6×6 which is equal to 36, In other words 6×6=36 or 6²=36

3³ is the same as 3×3×3 which is equal to 27, In other words 3×3×3=27 or

3³=27

Now with the product of each value in the word problem we can set up a statement as the following: 36+27= ?

Which when added together gives us the sum of 63, in other terms 36+27=63

concluding in our answer for the initial word problem. (6²+3³=63)

7 0
3 years ago
Why is this true 9a=11a-2a​
balandron [24]

Answer:

9a = 11a - 2a

9a = 9a

Step-by-step explanation:

9a = 11a - 2a

11 - 2 = 9

Similarly, 11a - 2a = 9a

Eleven minus two equals nine. Similarly, 11a minus 2a equals 9a. You can subtract them because they both have the same variable <u><em>a</em></u>.

6 0
3 years ago
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What is 0.92 X 0.81 because need it for tomorrow
Sati [7]
The answer is 0.7452. 
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3 years ago
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2 ln(x + 2) − ln(−x) = 0
enyata [817]

Answer:

x=-1

Step-by-step explanation:

Rewrite the equation using the next propierties:

log(\frac{1}{x} )=-log(x)

ylog(x)=log(x^{y} )

log(x*y)=log(x)+log(y)

ln((x+2)^2)+ln(\frac{-1}{x} )=0\\ln(\frac{(x+2)^2}{-x})=0

Cancel logarithms by taking exp of both sides:

\frac{(x+2)^2}{-x} =e^{0} =1

Multiplying both sides by -x and factoring:

x^{2} +5x+4=0

Factoring:

(x+1)(x+4)=0

The solutions are:

x=-1\hspace{3}or\hspace{3}x=-3

Evaluating x=-4

2ln(-2)-(4)=0

This is an absurd because ln(x) is undefined for x\leq 0

Evaluating x=-1

2ln(1)-ln(1)=0\\0-0=0

Which is correct, hence the solution is:

x=-1

6 0
4 years ago
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