All categories

3 years ago

Can someone help please

Mathematics

1 answer:

irina [24]3 years ago

4 0

Answer:

a) an = 12 -2(n -1)

b) an = 25 -5(n -1)

Step-by-step explanation:

The n-th term of an arithmetic sequence is given by ...

an = a1 +d(n -1) . . . . . first term a1, common difference d

The first term is a1 = 12; the common difference is d = 10 -12 = -2.

The n-th term is ...

an = 12 -2(n -1)

The first term is a1 = 25; the common difference is d = 20 -25 = -5. The n-th term is ...

an = 25 -5(n -1)

You might be interested in

Misaki cut some wood for a bookcase she is building.She needs to find how many 1/3 ft boards she can make from a 5 ft board.Expl

N76 [4]

Answer: There are 15 boards that she can make from a 5 ft board.

Step-by-step explanation:

Since we have given that

Length of a board = 5 ft

Length of board she can make from the above board is given by

$\frac{1}{3}\ ft$

We need to find the number of boards she can make from a 5 ft board.

According to question,

$\text{Number of boards}=\frac{5}{\frac{1}{3}}\\\\\text{Number of boards}=5\times 3\\\\\text{Number of boards}=15$

Hence, there are 15 boards that she can make from a 5 ft board.

6 0

3 years ago

Read 2 more answers

I need help please i will give brainliest

Marysya12 [62]

Answer: zoom inn

Step-by-step first zoom in a bit plz I can’t see it that good

On explanation:

8 0

3 years ago

What is the weight (in grams) of a liquid that exactly fills a 163.5 milliliter container if the density of the liquid is 0.492

Vinil7 [7]

Density= mass/volume 0.492=mass/163.5 mass=0.492*163.5 mass =80.448gram

6 0

4 years ago

Read 2 more answers

PLEASE help!!!!!!!!!!!!!!!!!!!!!!!!!!!

Luba_88 [7]

Answer: 11

Step-by-step explanation: 5x-15= 3x+7

Combine like terms: 2x= 7+15

Add = 2x= 22

Divide: equals 11

4 0

3 years ago

The siberian tiger can grow up to 10 5/4 feet long. express this length as a decimal

Komok [63]

The answer is 10.80. Hope this helps :)

6 0

3 years ago