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3 years ago

PLEASE HELP Which of the following ordered pairs represents a function?

Mathematics

1 answer:

nordsb [41]3 years ago

7 0

Answer:

The Answer is b, as the X value does not repeat.

Step-by-step explanation:

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When you find 420% of 85, what are you looking for? Are you looking for the percent, the part, the whole or a ratio

maw [93]

Answer:

percent

Step-by-step explanation:

it has a percent sign

Please mark me brainliest

6 0

3 years ago

A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

djyliett [7]

Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

So, the function is:

$y=ab^x$

$y=120 * 1.1^x$

To calculate the monthly rate (r), we have:

$y =a(1 + r)^x$

Compare to: $y =ab^x$

$1 + r = b$

Make r the subject

$r = b-1$

Substitute $b = 1.1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

$r = 10\%$

5 0

2 years ago

Identity the zero of the function y= x (x-4)(x+2)

yulyashka [42]

Answer:

- 2, 0 or 4

Step-by-step explanation:

y = x(x - 4)(x + 2)

x' = 0

x - 4 = 0

x" = 4

x + 2 = 0

x"' = - 2

I hope I helped you.

4 0

3 years ago

Which missing number makes the statement true? 8,486 < 8,_72 es ) A) 0 B) 2 C) 3 D) 6

Anestetic [448]

Answer:

D.) 6

Step-by-step explanation:

6 0

3 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Let f(t) be the number of vinyl records s

KIM [24]

I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
PLEASE SEE ATTACHED IMAGE.

First, we define the variables:
x: number of years after 1950
f (x): amount of vinyl sold.
Then, with the variables defined, we have:

68594 vinyl records were sold in 1958 ---------> f (8) = 68594

91299 vinyl records were sold in 1961 ---------> f (11) = 91299

38720 vinyl records were sold in 1952 ---------> f (2) = 38720

161743 vinyl records were sold in 1967 ---------> f (17) = 161743

5 0

2 years ago

PLEASE HELP Which of the following ordered pairs represents a function?​

PLEASE HELP Which of the following ordered pairs represents a function?