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2 years ago

Write down in terms of n an expression for the nth term of the following sequence. A) 25,20,15,10,5

Mathematics

1 answer:

ExtremeBDS [4]2 years ago

5 0

Answer:

(30-5n)

Step-by-step explanation:

The given sequence is :

25,20,15,10,5

Here,

First term, a = 25

Common difference = 20-25 = -5

We need to find the nth term of the given sequence. The formula for the nth term is given by :

$a_n=a+(n-1)d\\\\a_n=25+(n-1)(-5)\\\\=25-5n+5\\\\=30-5n$

So, the nth term of the above sequence is (30-5n).

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F(x) = x2 What is f(x) + f(x) + f(x)?

DaniilM [7]

Answer:

3x²

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Step-by-step explanation:

Step 1: Define

[Given] f(x) = x²

[Solve] f(x) + f(x) + f(x)

Step 2: Find

Combine like terms: 3f(x)
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3 years ago

Callie brushes her teeth three times each day. She leaves the water running. Is it reasonable to say that she uses 2 cups of wat

Dmitriy789 [7]

Answer: She uses more than 2 cups of water per day.

Step-by-step explanation:

It takes 2 minutes to brush your teeth and if you times that by 3 you get 6 so she spends 6 minuntes per day brushing her teeth and water runs fast. so if your leaving the water on for 6 mintues your filling up much more than 2 cups

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2 years ago

I need help now it’s due soon

zalisa [80]

Answer:

Ordered pairs are ( -3, 0) (0, 3)

Step-by-step explanation:

Now when your graphing, go up 3 spots in the y-axis ( up & down) and plot your point now do the same for your x-axis (( left and right), so go over to the left 3 places, and there now connect the 2 points and your done. Hope that helps!

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2 years ago

Ronald is making hats and scarves for charity. He has enough yarn to make 5 hats and 8 scarves. Takes him 12 hrs to knit a hat,

kari74 [83]

Constraints are simply the subjects of an objective function.

The inequality that represents the constraint is: $12x + 6y \le 20$

Represent the number of hats with x, and the number of scarves with y.

From the question, we have:

He spends 12 hours to knit a hat
He spends 6 hours to knit a scarf

So, the equation of the total time spent is:

$Time = 12x + 6y$

This time spent is not more than 20 hours.

So, the inequality is

$12x + 6y \le 20$

Hence, the inequality that represents the constraint is: $12x + 6y \le 20$