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4 years ago

What is the nth term of 1,3,6,10,15,21

Mathematics

1 answer:

bija089 [108]4 years ago

8 0

Answer:

1,3,6,10,15,21,…..

These are all the sum of natural numbers upto the n

So, in this series

1st Term = 1

2nd Term = 1+2 = 3

3rd Term = 1+2+3 = 6

4th Term = 1+2+3+4 = 10

So,

Term - n = 1+2+3+….+n = n(n+1)/2

That’s your answer n(n+1)/2

Good Luck

Step-by-step explanation:

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Which pair of angles in the figure below are vertical angles? Check all that apply

Firdavs [7]

Answer:

Step-by-step explanation:

and

< SYL and <EYA

Step-by-step explanation:

Vertical angles can be defined as the pair of angle which are opposite when two lines crosses, as the image attached shows.

Now, <EYL and <AYS are vertical angles, because they are opposite when lines ES and AL cross at point Y.

Another pair of vertical angles are <SYL and <EYA, because they are opposite when lines ES and AL cross at point Y.

Therefore, all pair of angles which are vertical angles are

<EYL and <AYS

< SYL and <EYA

REMENBER : VERTICAL LINEA

8 0

3 years ago

Give. b(x) = |x + 4| what is b(-10)

lesantik [10]

Answer:

Step-by-step explanation:

b(x) = |x + 4|

b(-10) = |-10 + 4|

-10 + 4 = -6

|-6| = 6

b(-10) = 6

6 0

4 years ago

Read 2 more answers

How do I graph a rational function with a y intercept. Example 3x^2-1/2x+4 +1

zloy xaker [14]

Basically see where it intersectst the y axis
that is where x=0
so set x=0 and solve
3(0)^2-1/2(0)+4+1
4+1
5
the y intercept is at y=5, so yo uknow that (0,5) is on the graph

3 0

4 years ago

Does this set of ordered pairs represent a function? {(–2, 3), (–1, 3), (0, 2), (1, 4), (5, 5)} A. The relation is a function. E

Aleks04 [339]

The correct option regarding whether the relation is a function is:

B. The relation is a function. Each input value is paired with one output value.

<h3>When does a relation represent a function?</h3>

A relation represent a function if <u>each value of the input is paired with one value of the output</u>.

In this problem, when the input - output mappings are given by:

{(–2, 3), (–1, 3), (0, 2), (1, 4), (5, 5)}.

Which means that yes, each input value is paired with one output value, hence the relation is a function and option B is correct.

A similar problem, in which we verify if a relation is a function, is given at brainly.com/question/12463448

#SPJ1

7 0

2 years ago

Select the expression that is equivalent to (x-1)².

Harlamova29_29 [7]

Answer:

Choice D

Step-by-step explanation:

(x-1)²

=(x-1)(x-1)
=x*x+x*−1+-1*x+-1*-1
=x²−x−x+1
=x²−2x+1

Choice D is accurate.

3 0

2 years ago