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3 years ago

4 For each nth term, find the 50th term. a 4n - 5

Mathematics

2 answers:

alukav5142 [94]3 years ago

5 0

4 x 50 = 200
200 - 5 = 195
195 is the answer hope this helps

9966 [12]3 years ago

4 0

195 is the 50th term.

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Can someone solve this for me? i also would like to know how you did (worked it out)

Nitella [24]

Answer:

it's

Step-by-step explanation:

(2f+2)(2f-2)

(2f^2-2^2)

7 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 48 in the length of 6 in greater than the width Define a variable and write an equation to repre

brilliants [131]

Answer:

Step-by-step explanation:

Let L represent the length of the rectangle.

Let W represent the width of the rectangle.

The formula for determining the perimeter of a rectangle is expressed as

Perimeter = 2(L + W)

The perimeter of a rectangle is 48 in. It means that

48 = 2(L + W)

L + W = 48/2

L + W = 24 - - - - - - - - - 1

the length of the rectangle is 6 in greater than the width. It means that

L = W + 6

Substituting L = W + 6 into equation 1, it becomes

W + 6 + W = 24

2W + 6 = 24

2W = 24 - 6 = 18

W = 18/2 = 9

L = W + 6 = 9 + 6 = 15

5 0

4 years ago

David's bowling score is 5 less than 3 times Aaron's score.The sum of their scores is 215.Find the sum of each student

riadik2000 [5.3K]

Y=3x-5
x+y=215
x+3x-5=215
4x-5=215
4x=220
x=55
y=215-55
y=160
Aaron got 55, and David got 160.

7 0

4 years ago

From a bag containing 6 white balls, 3 black balls and 13 red balls, two balls are drawn at random. What is the probability that

qaws [65]

Answer:

Probability [Both ball red without replacement] = 26 / 77

Step-by-step explanation:

Given:

Number of white ball in beg = 6 balls

Number of black ball in beg = 3 balls

Number of red ball in beg = 13 balls

Find:

Probability [Both ball red without replacement]

Computation:

Probability of first red ball = Number of red ball in beg / [Total balls in beg]

Probability of first red ball = 13 / [6 + 3 + 13]

Probability of first red ball = 13 / 22

Probability of Second red ball = Number of remaining red ball in beg / [Total balls in beg without replacement]

Probability of Second red ball = [13 - 1] / [6 + 3 + 12]

Probability of Second red ball = 12 / 21

Probability [Both ball red without replacement] = [Probability of first red ball][Probability of Second red ball]

Probability [Both ball red without replacement] = [13/22][12/21]

Probability [Both ball red without replacement] = 26 / 77

7 0

3 years ago

Scott decides to add running into an exercise routine and runs a total of 1 mile his first week he plans to double the number of

ratelena [41]

The question is an illustration of geometric progression.

The recursive function is: $T_n = 2T_{n-1}$ .
The explicit function is: $T_n = 2^{n-1}$

From the question, we have:

$T_1= 1$ ---- the first week

$r = 2$ ---- The rate at which the distance increases each week.

When a sequence has a common ratio, the sequence is said to be a geometric sequence.

The Recursive function.

We have given that

$T_1= 1$ ---- the distance in the first week

The second week would be:

$T_2 = r \times T_1$

For the third week, the distance would be:

$T_3 = r \times T_2$

Express 2 as 3 - 1

$T_3 = r \times T_{3-1}$

Replace 3 with n, to get the distance for the nth week

$T_n = r \times T_{n-1}$

Substitute 2 for r

$T_n = 2 \times T_{n-1}$

$T_n = 2T_{n-1}$

Hence, the recursive function is: $T_n = 2T_{n-1}$

Explicit function

The nth term of a geometric sequence is:

$T_n = T_1 \times r^{n-1}$

Substitute values for $T_1\\$ and r.

$T_n = 1 \times 2^{n-1}$

$T_n = 2^{n-1}$

Hence, the explicit function is: $T_n = 2^{n-1}$

Read more about geometric sequence at:

brainly.com/question/18109692

7 0

3 years ago