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3 years ago

1.) Which relation is a function?

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

6 0

1) A function won't have repeats of the x values . Thus the first choice will not be a function because of the 2 '0' x values.
C is the answer to thid question

2) The first choice A is the only function. It is the only one which passes the vertical line test. ( if we can draw any vertical line which passes through more than one point on the graph then its is NOT a function).

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A school band raised $252 by holding a car wash. The band

Mrrafil [7]

Answer: See explanation

Step-by-step explanation:

From the question, we are informed that the school band raised $252 by holding a car wash and that the band

washed 42 cars in all.

The equation can be used to find n, the average amount they earned per car will be:

n = $252 / 42

n = $6

The amount earned per car is $6

7 0

3 years ago

Filipe bought a classic car, originally valued at $70,000, in 2006. He believes that the value of the car depreciates exponentia

saw5 [17]

so, from 2006 to 2018 is 12 years then,

$\bf \qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &70000\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=\textit{elapsed time}\dotfill &12\\ \end{cases} \\\\\\ A=70000(1-0.04)^{12}\implies A=70000(0.96)^{12} \\\\\\ A\approx 42889.68\implies A=\stackrel{rounded~up}{42890}$

3 0

3 years ago

I WILL GIVE YOU BRAINLIEST IF YOU HELP me

ELEN [110]

Answer:

( 1 , 6 )

Step-by-step explanation:

sory if it is wrong

3 0

3 years ago

PLEASE HELP I’m bad at math

sleet_krkn [62]

Answer:

Step-by-step explanation:

The GCF of 42 and 12 is 6

5 0

3 years ago

If U= π(r+h), find r when U =16/1/2 and h = 2/3/4<br><br>π = 3/1/7

krek1111 [17]

Answer:

r = 2.5

Step-by-step explanation:

U= π(r+h)

Where,

U = 16 1/2

h = 2 3/4

π = 3 1/7

U= π(r+h)

16 1/2 = 3 1/7(r + 2 3/4)

33/2 = 22/7(r + 11/4)

33/2 = 22/7r + (22/7 * 11/4)

33/2 = 22/7r + 242/28

33/2 - 242/28 = 22/7r

(462-242) / 28 = 22/7r

220/28 = 22/7r

r = 220/28 ÷ 22/7

= 220/28 × 7/22

= (220 * 7) / (28 * 22)

= 1540/616

= 2.5

r = 2.5

4 0

3 years ago