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raketka [301]
3 years ago
13

Nth term of this sequence: -1,3,7,11

Mathematics
2 answers:
AlexFokin [52]3 years ago
5 0

Answer:

What is the sequence? The sequence is +4

Step-by-step explanation:

I don't know if you are asking for the ninth or tenth term of the sequence, but I'll just list them all.

-1,    3,     7,     11,     15,     19,     23,     27,     31,    35, ...

|___||___||___||____||___||____||____||____||____|

 +4     +4    +4    +4     +4      +4     +4       +4      +4

So 31 and 35 are your answer!

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
Arte-miy333 [17]3 years ago
5 0
Term of sequence: i think it’s 4
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PLEASE HELP FAST
skad [1K]

Answer:

The unit vector u is (-5/√29) i - (2/√29) j

Step-by-step explanation:

* Lets revise the meaning of unit vector

- The unit vector is the vector ÷ the magnitude of the vector

- If the vector w = xi + yj

- Its magnitude IwI = √(x² + y²) ⇒ the length of the vector w

- The unit vector u in the direction of w is u = w/IwI

- The unit vector u = (xi + yj)/√(x² + y²)

- The unit vector u = [x/√(x² + y²)] i + [y/√(x² + y²)] j

* Now lets solve the problem

∵ v = -5i - 2j

∴ IvI = √[(-5)² +(-2)²] = √[25 + 4] = √29

- The unit vector u = v/IvI

∴ u = (-5i - 2j)/√29 ⇒ spilt the terms

∴ u = (-5/√29) i - (2/√29) j

* The unit vector u is (-5/√29) i - (2/√29) j

8 0
3 years ago
What is the slope pls help
Galina-37 [17]

Answer:

y=.5x+-2.5

Step-by-step explanation:

This is the linear equation (y=mx+b) m means slope so your slope is .5.

7 0
3 years ago
Elizabeth is spinning a spinner with 5 equal sized sections. The sections are numbered 1, 1, 2, 2, 4. Which statement about the
Vinil7 [7]

Answer:

its d

Step-by-step explanation:

the options can be eliminated by using common sense.

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!BRAINLIEST PLUS 50 POINTS
docker41 [41]

Use the quadratic formula to find:

x

=

1

±

√

85

5

Explanation:

5

x

2

−

10

x

−

12

is of the form  

a

x

2

+

b

x

+

c

with  

a

=

5

,  

b

=

−

10

and  

c

=

−

12

This has discriminant  

Δ

given by the formula:

Δ

=

b

2

−

4

a

c

=

(

−

10

)

2

−

(

4

×

5

×

−

12

)

=

100

+

240

=

340

=

2

2

⋅

85

This is positive, but not a perfect square, so the quadratic equation has a pair of irrational roots, given by the quadratic formula:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

=

−

b

±

√

Δ

2

a

=

10

±

√

340

10

=

10

±

2

√

85

10

=

1

±

√

85

5

5 0
3 years ago
Very confusing, please help
Ksivusya [100]

Answer:

A -2*-2 ≠- 4

Step-by-step explanation:

sqrt(-4)

The answer is an imaginary number

-2*-2 = 4 not -4

7 0
3 years ago
Read 2 more answers
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