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viktelen [127]
3 years ago
10

+56-(3+4-1)= ?????????

Mathematics
2 answers:
never [62]3 years ago
5 0
The answer is 50. Because 3+4-1=6 so 56-6 is 50.
hjlf3 years ago
3 0

Hey there!

56 - (3 + 4 - 1)

= 56 - (7 - 1)

= 56 - 6

= 50

Therefore, your answer is: 50

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

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If the ratio of children to adults is 2:9 and there are 70 children at an arts festival, how many adults are in attendance?
nordsb [41]

Answer:

315

Step-by-step explanation:

If 70 children is 2 parts, one part is 35

35*9 is 315

6 0
3 years ago
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Please actually show ur work on how u got the answer thank u
serg [7]

Answer:

C

Step-by-step explanation:

I substituted the x value with the different options. I kept doing that until the equation made sense.

4 0
3 years ago
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Prove that for any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.
Pachacha [2.7K]

For any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.

Step-by-step explanation:

In order to prove the statement we can take any value of x and then solve the expression to see if it equal to -16 or not.

So,

Taking x = 2

=(x-3)(x+7)-(x+5)(x-1)\\=(2-3)(2+7)-(2+5)(2-1)\\=(-1)(9)-(7)(1)\\=-9-7=-16

Taking x = 5

=(x-3)(x+7)-(x+5)(x-1)\\=(5-3)(5+7)-(5+5)(5-1)\\=(2)(12)-(10)(4)\\=24-40\\=-16

Taking x= 10

=(x-3)(x+7)-(x+5)(x-1)\\=(10-3)(10+7)-(10+5)(10-1)\\=(7)(17)-(15)(9)\\=119-135=-16

Hence,

For any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.

Keywords: Polynomials, expressions

Learn more about polynomials at:

  • brainly.com/question/10941043
  • brainly.com/question/10978510

#LearnwithBrainly

6 0
3 years ago
A rectangular prism has a length of 12in, a height of 5in, and a width of 8in. What is it’s volume, in cubic in?
marissa [1.9K]

Answer:

12 times 2 is 24. 5 times 2 is 10. 8 times 2 is 16.  24 plus 10 plus 16 is 50

Step-by-step explanation:

4 0
4 years ago
(sin(pi*x)+cos(pi*y))^7=36 find the dy/dx by implicit differentiation
katrin [286]
Hello,

f(x,y)=(sin(\pi*x)+cos(\pi*y))^7 -36\\

 \dfrac{\partial f}{\partial x} =7*(sin(\pi*x)+cos(\pi*y))^6*cos(\pi*x)*\pi\\

 \dfrac{\partial f}{\partial y} =7*(sin(\pi*x)+cos(\pi*y))^6 * (-sin(\pi*y ))*\pi\\

 \dfrac{dy}{dx} =-\dfrac{\dfrac{\partial f}{\partial x}}{ \dfrac{\partial f}{\partial y}}\\\\

=-\dfrac{7*(sin(\pi*x)+cos(\pi*y))^6* cos(\pi*x)*\pi}{7*(sin(\pi*x)+cos(\pi*y))^6*(-sin(\pi*y))*\pi}\\

=\dfrac{cos(\pi*x)}{sin(\pi*y)}

 














6 0
3 years ago
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