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aivan3 [116]
3 years ago
11

Which function ?? Need help

Mathematics
1 answer:
boyakko [2]3 years ago
5 0
C. -7.25 + 0.5(n)
Let's plug in some numbers
Let n = 2
-7.25 + 0.5(2) = -6.25
Let n = 3
-7.25 + 0.5(3) = -5.75
All the numbers match up when you substitute a whole number, therefore it is C.
Let's check one last one, if n=4
-7.25 + 0.5(4) = -5.25
Let's check to see if this is true.
-5.75 - 0.5 = -6.25
The -5.75 and the -6.25 are all numbers given for the equation. (in your picture)
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Plz help !!! timed quiz
Zanzabum

Answer:

6 1/12

Step-by-step explanation:

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3 0
3 years ago
The sides of a triangle are 1, x, and x2. what are possible values of x?
Whitepunk [10]
The sides of the triangle are given as 1, x, and x².

The principle of triangle inequality requires that the sum of the lengths of any two sides should be equal to, or greater than the third side.

Consider 3 cases
Case (a):  x < 1,
      Then in decreasing size, the lengths are 1, x, and x².
      We require that x² + x ≥ 1
      Solve x² + x - 1 = 
      x = 0.5[-1 +/- √(1+4)] = 0.618 or -1.618.
      Reject the negative length.
     Therefore, the lengths are 0.382, 0.618 and 1.

Case (b): x = 1
   This creates an equilateral triangle with equal sides
    The sides are 1, 1 and 1.

Case (c): x>1
  In increasing order, the lengths are 1, x, and x².
  We require that x + 1 ≥ x²
  Solve x² - x - 1 = 0
  x = 0.5[1 +/- √(1+4)] = 1.6118 or -0.618
  Reject the negative answr.
 The lengths are 1, 1.618 and 2.618.

Answer:
The possible lengths of the sides are
(a) 0.382, 0.618 and 1
(b) 1, 1 and 1.
(c) 2.618, 1.618 and 1.

7 0
3 years ago
OAB is a sector of a circle of radius 12 cm Angle AOB= 60º Work out the length of the arc B. Give your answer in terms of pie.
Debora [2.8K]

Answer:

Since 60° is one sixth of the entire circle (360°) it means that the length of arc B is 1/6 th of the circumference.

1/6 * (12 * 2π) = 4π

3 0
3 years ago
What is the perimeter of this figure?
murzikaleks [220]

Answer:

6+2+3+3+3+5=22 is a correct answer

7 0
3 years ago
Im not sure how to do this 5×(−2w−4)
Mama L [17]

Answer:

-10w-20

Step-by-step explanation:

Distribute inside parenthesis,

5x 2w

5x-4

4 0
2 years ago
Read 2 more answers
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