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Murljashka [212]
3 years ago
13

The first 3 figures in a pattern are shown. image Which of the following functions represents f(n), the number of small squares

in figure n? A. f(n) = n2 – 1 B. f(n) = 2n2 + 1 C. f(n) = (n + 1)2 + 1 D. f(n) = (n + 1)2 – 1
Mathematics
2 answers:
-BARSIC- [3]3 years ago
6 0

Answer:

d

Step-by-step explanation:

Cerrena [4.2K]3 years ago
6 0

Answer:

A

Step-by-step explanation:

A is n= n2 -1 so thats the answer

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If (6,8), (-3, 8), and (6,-4) are the coordinates of the vertices of a triangle, what is the
arsen [322]

Answer: 36

Step-by-step explanation:

Distamce from (6, 8) to (-3, 8) is 9.

Distance from (-3, 8) to (6, -4) is \sqrt{(-3-6)^{2}+(8-(-4))^{2}}=15

Distance from (6, 8) to (6, -4) is 12.

So P = 9 + 15 + 12 = 36.

7 0
3 years ago
The height of certain banner is equal to one third of its length, If the banner is 5 feet tall, write an equation that can be us
Ludmilka [50]

5÷3=length

5 is the length of the banner and you need to know the length. You already know that the length is 1/3 of the width (5).

1.7 feet

3 0
4 years ago
Audreys Candy Store sold 22 individual pounds of jelly beans, one kind at $3.87 per pound and the other at $0.94 per pound. In a
slega [8]

Answer:

  • 3 pounds at $3.87
  • 19 pounds at $0.94

Step-by-step explanation:

Let x represent the number of pounds of high-priced jelly beans sold. Then the total revenue was ...

  3.87x + 0.94(22 -x) = 29.47

  2.93x + 20.68 = 29.47 . . . . . . eliminate parentheses, collect terms

  2.93x = 8.79 . . . . . . . . . . . . . .  subtract 20.68

  x = 3  . . . . . . . . . divide by 2.93

3 pounds of $3.87 jelly beans were sold; 19 pounds of $0.94 jelly beans were sold.

8 0
4 years ago
What is the equation of a line passing through (-3, 7) and having a slope of -1/5.
Elden [556K]
M = - 1/5
y = m x + b
7 = - 1/5 · ( - 3 ) + b
7 = 3/5 + b
b = 7 - 3/5
b = 35/5 - 3/5
b = 32/5
The equation is:
y = - 1/5 x + 32/5   or : y = - 0.2x + 6.4
3 0
3 years ago
Which of the following represents a function?
alexgriva [62]
Answer:
(2,3),(4,3),(-2,-3),(-4,-3)
Explanation:
The x value can not repeat but the y value can
8 0
3 years ago
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