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2 years ago

Is this a function or not

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

8 0

this equation is not funcion.

Step-by-step explanation:

if u make a graph and u aline them with dots 2 or more dots will cross each other witch makes it not function:)

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Aubrey worked at the concession stand during a recent sporting event at her high school. During the first hour of the event, she

ella [17]

Answer:

cost of nachos = $3.45

Cost of tacos = $1.5

Step-by-step explanation:

Let

x = cost of nachos

y = cost of tacos

11x + 18y = 64.95 (1)

6x + 15y = 43.20 (2)

Multiply (1) by 6 and (2) by 11 to eliminate x

66x + 108y = 389.70

66x + 165y = 475.20

Subtract to eliminate x

165y - 108y = 475.20 - 389.70

57y = 85.50

y = 85.50/57

y = 1.5

Substitute y = 1.5 to find x

11x + 18y = 64.95 (1)

11x + 18(1.5) = 64.95

11x + 27 = 64.95

11x = 64.95 - 27

11x = 37.95

x = 37.95/11

x = 3.45

cost of nachos = $3.45

Cost of tacos = $1.5

8 0

3 years ago

What must be true to find the sum of a infinite sequence?

Georgia [21]

Answer:

The series must be decreasing, and the limit as the n-th term goes to infinity should be 0.

3 0

3 years ago

PLEASE HELP ASAP 25 PTS

gladu [14]

Answer:

Graph (a)

Step-by-step explanation:

When we take x = 0 and replace in the given formula we get:

y = 0.5 (0.5)ˣ = 0.5 (0.5)⁰ = 0.5 · 1 = 0.5 and this corresponds to graph (a).

God with you!!!

7 0

3 years ago

Unit rate for typing 34 words in a minute in a half

katrin [286]

Answer:

Rate is 1.1333 words per second 

Step-by-step explanation:

We understand rating as frequency or speed of doing something per time (seconds mainly)

${ \green{ \tt{rate = \frac{item \: quantity}{time} }}} \\$

Let's find rate in terms of seconds (words per second)

${ \rm{rate = \frac{34 \: words}{ (\frac{1}{2} \times 60) \: seconds} }} \\ \\ { \rm{rate = \frac{34}{30} }} \\ \\ { \rm{rate = 1.133 \: \: words \: per \: second}}$

6 0

2 years ago

The school that Trevon goes to selling tickets to the annual dance competition. On the first day of tickets sales the school sol

KiRa [710]

Answer:

both kinds of tickets are $5 each

Step-by-step explanation:

Let s and c represent the dollar costs of a senior ticket and child ticket, respectively. The problem statement describes two relationships:

12s + 5c = 85 . . . . . revenue from the first day of sales

6s + 9c = 75 . . . . . . revenue from the second day of sales

Double the second equation and subtract the first to eliminate the s variable.

2(6s +9c) -(12s +5c) = 2(75) -(85)

13c = 65 . . . . . simplify

65/13 = c = 5 . . . . . divide by the coefficient of c

Substitute this value into either equation. Let's use the second one.

6s + 9·5 = 75

6s = 30 . . . . . . . subtract 45

30/6 = s = 5 . . . divide by the coefficient of s

The price of a senior ticket is $5; the price of a child ticket is $5.

5 0

3 years ago