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swat32
2 years ago
15

Sucesión II: 3, 7, 11, 15, 19, 23 ... ¿Cual es la expresión algebraica que la genera? * x=4n-2 x= 4n-1 x=3n-2

Mathematics
1 answer:
LenaWriter [7]2 years ago
8 0

Responder:

4n-1

Explicación paso a paso:

Dada la secuencia

3, 7, 11, 15, 19, 23 ..

El enésimo término si la secuencia se expresa como;

Tn = una + (n-1) d

a es el primer término = 3

n es el número de términos

d es la diferencia común = 7-3 = 11-7

d = 4

Sustituir

Tn = 3+ (n-1) (4)

Tn = 3 + 4n-4

Tn = 4n-1

Por lo tanto, el enésimo término de la secuencia es 4n-1

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65% of the 800 students at North High School ride the
jonny [76]

Answer:

520 out of 800 students ride the bus

Step-by-step explanation:

Given

Proportion = 65\%

Students = 800

Required

Determine the number of students that\ ride\ the\ bus

To do this, we simply multiply the proportion by the total number of students.

i.e.

Bus = Proportion * Students

Bus = 65\% * 800

Express the percentage as decimal

Bus = 0.65* 800

Bus = 520

<em />

6 0
3 years ago
Find an expression for the nth term ( tn ) in each of the following sequences:
Alexandra [31]

Answer:

The expression for the nth term is Tn = 8n -7

Step-by-step explanation:

Here, we are to find an expression for the nth term of the sequence.

Mathematically, the nth term of an arithmetic sequence can be expressed as;

Tn = a + (n-1)d

for T2, the equation is

a + d = 9

for T4, the equation is

a + 3d = 25

we can substitute the equation of T2 into T4 but we first need to rewrite T4

a + d + 2d = 25

9 + 2d = 25

2d = 25 -9

2d = 16

d = 16/2

d = 8

now since a + d = 9

a = 9-d

a = 9-8

a = 1

So the expression for the nth term would be;

1 + (n-1)8

1 + 8n - 8

= 8n -8+1

= 8n -7

6 0
3 years ago
Solve the system by graphing <br> y = -3/4x + 6 <br> y = 2x - 5
jonny [76]

Answer:

X= 4. Y = 3.

Step-by-step explanation:

If you have a graphing calculator, put the first equation into Y1. And second equation into Y2. Then, find the intersection of the two equations. That's how you find your answer.

4 0
3 years ago
A Scientist had a bottle that contains 56.6 mL of solution.She used 3.2 mL of the solution for an experiment.She poured half of
mario62 [17]
56.6 - 3.2 = 53.4
53.4 / 2 = 26.7
26.7 - 6 = 20.7ml
For the final answer she has 20.7ml of solution left.

Please mark as brainliest if you can
7 0
3 years ago
The dimensions of a rectangle can be given by x+7 and x+2. If the area of the rectangle is 66 square inches, what are the dimens
Nadusha1986 [10]

to solve  for the dimensions (x+7)(x+2)=66,

we can first use the foiling method to simplify the left side.

x^2 + 2x + 7x + 14 = 66

x^2 + 9x + 14 = 66

now, subtract 66 from both sides.

x^2 + 9x - 52 = 0

now, split this into two parentheses.

(x + 13)(x - 4)

since the root of -13 would give you negative values, x=4. This means that the dimensions of the rectangle are 11 and 6.

7 0
3 years ago
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