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vekshin1
3 years ago
5

find a formula for the nth term of the arithmetic sequence the first term is -2 and the common difference is 8

Mathematics
1 answer:
Rudiy273 years ago
3 0

Answer:

a(n) = -2 + 8(n - 1)

Step-by-step explanation:

General formula is a(n) = a(1) + d(n - 1), where d is the common difference.

Here a(n) = -2 + 8(n - 1)

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The sum of two expressions
vagabundo [1.1K]

Answer:

4x + 2y

Step-by-step explanation:

If you subtract 5x + 3y from 9x + 5y, you get:

  9x + 5y

<u> - 5x + 3y</u>

  4x + 2y

7 0
3 years ago
I NEED HELP PLEASE THANKS
Simora [160]

Answer:

D. Reflect across the x-axis, then shift 4 units up

Step-by-step explanation:

In this case, reflecting across the x-axis just means going 4 units down. To go back up, go 4 units up.

8 0
3 years ago
A construction company wants to build an auditorium on a trapezium shaped plot measuring 410m2. One of the parallel sides of the
Assoli18 [71]

Answer:

other parallel side is 23m

Step-by-step explanation:

Let's assume other parallel sides as 'x'

One of the parallel sides of the trapezium plot measure 18m

so, y=18

distance between the two parallel sides measure 20m

so, h=20

now, we can use area of trapezium formula

A=\frac{1}{2}\times h \times (x+y)

now, we can plug values

A=\frac{1}{2}\times 20 \times (x+18)

we can set A=410

and then we can solve for x

410=\frac{1}{2}\times 20 \times (x+18)

10\left(x+18\right)=410

x+18=41

x=23


6 0
4 years ago
Write the following expression using the fewest possible terms.<br><br> (−2x − 13) + (19 + 5x)
MakcuM [25]

The rewritten form of the given expression using the fewest terms is; 3x + 6.

<h3>What is the rewritten form of.the expression using the least possible terms?</h3>

It follows from the task content that the given expression is to be rewritten using the fewest terms.

Since the given expression is;

( −2x − 13 ) + ( 19 + 5x )

By getting rid of the parentheses; we have;

-2x - 13 + 19 + 5x

By collecting like terms; we have;

-2x + 5x - 13 + 19

3x + 6

Therefore, the required rewritten form of the given expression is; 3x + 6.

Read more on rewritten form of expressions;

brainly.com/question/28757930

#SPJ1

8 0
1 year ago
Please help and explain if so thank you
myrzilka [38]

Answer:

<em>y = 6</em>

Step-by-step explanation:

Slope-intercept form:

y = mx + b

m = slope; b = y-intercept

A line with slope 0 is a horizontal line. Since one point on the line has y-coordinate 6, then all points on the line have y-coordinate 6. The y-intercept is 6.

m = 0; b = 6

y = mx + b

y = 0x + 6

y = 6

4 0
3 years ago
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