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never [62]
3 years ago
11

If the input value is 4, what is the output value for the following function?

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

note the input is the value of x and the output the value of y

Given

y = 3x - 5 ← substitute x = 4

y = 3(4) - 5 = 12 - 5 = 7 ← output

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Determine whether the relationship between the circumfrance of a circle and its diameter is a direct variation. If so, identify
kipiarov [429]

Answer:

The relationship between the circumference of a circle and its diameter represent  a direct variation and the constant of proportionality is equal to the constant \pi

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=kx

where K is the constant of proportionality

In this problem we know that

The circumference of a circle is equal to

C=\pi D

therefore

the relationship between the circumference of a circle and its diameter is a direct variation and the constant of proportionality is equal to the constant \pi

3 0
3 years ago
Evaluate the expression for the given values of the variables. x2 + 4(x − y) ÷ z2, for x = 8, y = 5, and z = 2
prisoha [69]
(8)(2)+4(8)(-5)(2)(2)

The answer is -624
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3 years ago
Okay my math final is tomorrow and i need help with variable expressions. If anyone has any websites or apps they recommend, ple
Solnce55 [7]

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.khanacademy.org/math/algebra/one-variable-linear-equations/alg1-intro-equations/v/variables-expressions-and-equations&ved=2ahUKEwjrpqD1gZziAhUBsp4KHVePBeEQwqsBMAB6BAgHEAU&usg=AOvVaw0AYOWzWFGI7vP8YUOvBhPc Here is a video that's helpful to me

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3 years ago
Which of the following statements represents a correct relantionship
Nezavi [6.7K]

Hey there!

  • \bold{345>354} is false because \bold{345} is smaller/less than \bold{354}
  • \bold{400 is incorrect because \bold{40} is smaller/lesser than \bold{400}
  • \bold{4008 is correct because \bold{4080} is bigger than/ greater than \bold{4008}
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3 0
3 years ago
What is the value of x if a² + ax - 10 is divided by a-2?<br><br>help with computation po​
AnnyKZ [126]

Answer:

x = 3

Step-by-step explanation:

We need it in factorized form to get x.

If the quadratic equation can be divided by a-2 the first part is:

(a-2)

Now to get a², the a must be multpilied by itself. So

(a-2)(a)

To get -10, -2 must be multiplied by 5. So:

(a-2)(a+5)

we can expand to get x

a² + 5a - 2a -10

a² + 3a - 10

a² + ax - 10

x = 3

5 0
2 years ago
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