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Darina [25.2K]
3 years ago
5

What is the nth term rule of the linear sequence below?

Mathematics
1 answer:
timurjin [86]3 years ago
8 0

Answer:

T _{n} = a + (n - 1)d \\ T _{n}  = 13 + (n - 1) \times  - 6 \\ T _{n} = 13 - 6(n - 1) \\ T _{n} = 13 + 6(1 - n)

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Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(7n+0.9)
irinina [24]

Answer:

-7n - .9

Step-by-step explanation:

By distributing the - to the parentheses, you must add a - sign to each number in the parentheses. This makes the positives turn negative.

3 0
3 years ago
Read 2 more answers
$12 for 15 milliliters $8 for 10 milliliters yes or no
vichka [17]

Answer:

The correct answer is A. 167 milliliters of 7% solution and 333 milliliters of 4% solution and here is how:

If x is the number of milliliters of the 7% saline solution and y is the number of milliliters of the 4% saline solution then add up to 500 milliliters total, so x + y = 500.

and if we do

x + y = 500

x = 500 - y

0.07x + 0.04y = 25 (substitute 500 - y for x)

0.07(500 - y) + 0.04y = 25

35 - 0.07y + 0.04y = 25

-0.03y + 35 = 25

-0.03y = -10

y = 333.333...

y = about 333

x = 500 - y = 500 - 333 = 167

Then you know why the answer is A.

Step-by-step explanation:

8 0
3 years ago
You estimate that a jar contains 68 marbles. The actual number is 60. Find the percent error. Round your answer to the nearest t
Alexandra [31]
Normally I'd put 0.1176 but since it's to the nearest tenth it is .1
7 0
4 years ago
Anahid can purchase 9 drawing tablets for $10.26 at the art supply shop. She can purchase 21 of the same tablets for $23.52 from
bazaltina [42]

Buying from the website is a better deal.  

The amount saved <u>per tablet</u> by purchasing at the vendor with the better deal is $0.02

<h3>Calculating cost </h3>

From the question, we are to determine the better deal

From the given information,

Anahid can purchase 9 drawing tablets for $10.26 at the art supply shop

The unit price at the art supply shop is

$10.26/9 = $1.14

Also,

She can purchase 21 of the same tablets for $23.52 from a website

The unit price from the website is

$23.52/21 = $1.12

Since, the unit price from the website is lesser, it is the better deal

The amount saved per tablet by purchasing at the vendor with the better deal is

$1.14 - $1.12 = $0.02

Hence, buying from the website is a better deal.  

The amount saved <u>per tablet</u> by purchasing at the vendor with the better deal is $0.02

Learn more on Calculating cost here: brainly.com/question/7459025

#SPJ1

8 0
2 years ago
In fgh, m f=60 degrees g= 68 degrees. which side of fgh is the shortest
juin [17]

Answer:

h=52 and h is the shortest

Step-by-step explanation:

180-f-g=h    step 1. -f from 180

180-60=120   step 2. -g from 120

120-68= 52

h=52 degrees

7 0
2 years ago
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