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marissa [1.9K]
3 years ago
13

Which of the following is an example of a function

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer: Option C.

Step-by-step explanation:

A function goes trough the x-axis when f(x) = 0 for some value of x.

For example, when we say that a quadratic function has no real zeros, this means that the determinant is less than zero, so the roots of the equation:

a*x^2 + b*x + c = 0

are complex roots, this means that for the function:

f(x) = y = a*x^2 + b*x + c

there is not a real number x such f(x) = 0

So the correct option is C.

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What is the missing value of n that will make the equation true? 3^8 . 3^n= 3^14
marissa [1.9K]

Answer:

n = 6

Step-by-step explanation:

{3}^{8} . {3}^{n}  =  {3}^{14}  \\  {3}^{8 + n}  =  {3}^{14}   \\ 8 + n = 14 \\ n = 14 - 8 \\ n = 6

7 0
3 years ago
What is the sum of the prime factors of 1260? For example, the sum of the prime factors of 20
Genrish500 [490]

Answer:

The answer is 22

Step-by-step explanation:

Do Prime Factorization of 1260

(as shown in the picture I attached)

Prime factors of 1260 = 2, 2, 3, 3, 5, 7

Now to get the sum of the prime factors of 1260, you just have to add all the factors

2 + 2 + 3 + 3 + 5 + 7 = 22

Hope this helps!

3 0
2 years ago
15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.
maks197457 [2]

Answer:

  • 4 hectares

Step-by-step explanation:

<u>The scale factor is:</u>

  • k = 1/400

Applied to the area we consider k² as the area is the product of two dimensions.

<u>Find the actual area:</u>

  • 0.25 m² : (1/400)² =
  • 0.25 m² * 160000 =
  • 40000 m² =
  • 40000 * 1/10000 hectares =
  • 4 hectares
6 0
3 years ago
Write an equation for the line through (4,-1) and (6,9).<br>​
artcher [175]

Answer:

y = 5x - 21

Hope this helps!

3 0
3 years ago
Read 2 more answers
What is the length of the diameter?
ollegr [7]

Answer:

diameter = 2 * radius = 2 * 14 = 28 cm

3 0
2 years ago
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