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3 years ago

I don’t understand this

Mathematics

1 answer:

IRISSAK [1]3 years ago

5 0

Hello there, and thank you for posting your question here on brainly.

You can tell if its a function or not if it's x value isn't repeating.

If you look, you can see it's x values are repeating, so it is not a function.

Hope this helps!! ☺♥

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Answer:480

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What is the value of the 24th term in the following arithmetic sequence?

lorasvet [3.4K]

Answer:

Option B

Step-by-step explanation:

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A cell phone company charges a monthly fee plus $0.25 for each text message. The monthly fee is $30.00 and you owe $59.50. Write

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4 years ago

John’s parents recorded his height at various ages between 36 and 66 months.

timurjin [86]

Answer:

Step-by-step explanation:

a)General least square regression line is ,

$Y=a+(b*x)$

Where,a=intercept. b= slope

To get line just find values of a and b.

Use Excel to find values.

First enter values of variable "age" that is y in the column A that is A1to A5 and values of variable "height" in the column B, B1 to B5.

Then for value of a use functufuas ,

=INTERCEPT(A1:A5,B1:B5)

Then hit enter ,therefore a=20.4595

For b use function as. =SLOPE(A1:A5,B1:B5)

Then hit enter.therefore b=0.3738

Therefore equation of least square regression line is

Y=20.4595+(0.3738*x)

b) to predict height at age 21 years or 252 month just put value of x=252 in the above equation.

Y=20.4595+(0.3738+252)

Y=20.4595+94.1976

Y=114.6571

Conclusion: height will be 114.6571 inches when age change by 1 unit.

7 0

3 years ago

Factor. 3x(y−4)−2(y−4) Enter your answer in the box.

NISA [10]

Answer: Use the distributive property to multiply 3 by y−4.

3y−12−2(y−4)

Use the distributive property to multiply −2 by y−4.

3y−12−2y+8

Combine 3y and −2y to get y.

y−12+8

Add −12 and 8 to get −4.

Anwser:

y−4

Step-by-step explanation:

Hope this helps!

6 0

3 years ago