All categories

2 years ago

PLEASE HELP!!!!!! I HAVE BEEN STUCK FOR DAYS!!!!

Mathematics

1 answer:

Sveta_85 [38]2 years ago

3 0

Answer:

40 terms

Step-by-step explanation:

the sum to n terms of an arithmetic sequence is

$S_{n}$ = $\frac{n}{2}$ (a₁ + $a_{n}$ )

then

$\frac{n}{2}$ (- 4 - 82) = - 1720 ( multiply both sides by 2 to clear the fraction )

- 86n = - 3440 ( divide both sides by - 86 )

n = 40

the series has 40 terms

You might be interested in

A drawing of a room has scale of 1/4 inch = 1 ft. what is the proportional relationship according to scale?

exis [7]

Answer:

for every 1/4in on the paper its 1ft in real life

Step-by-step explanation:

6 0

2 years ago

E-Z View cable company charges a flat rate of $40 per month for service and $4.95 for each pay per view movie. View the Best cha

kkurt [141]

E-Z View: 40 + 4.95x
View the best: 25 + 5.95x

Equal monthly bills:

40 + 4.95x = 25 + 5.95x

5.95x - 4.95x = 40 - 25

x = 15

Answer: 15

6 0

3 years ago

Two vertices of a right triangle have coordinates (3, 7) and (3, 10) . The segment that connects these points is a leg of the tr

vesna_86 [32]

(7,8) I think is the answer your looking for

3 0

2 years ago

Read 2 more answers

If a sample of 362 customers is taken from a population of 5530 customers,

inysia [295]

Using concepts of sample and population, it is found that the sample variance is representative of 362 and 5530 customers ages, option D.

------------------------

In sampling, the information is taken from a sample, and is used to estimate it for the whole population.

In this problem, we have a sample of 362 and a population of 5530 customers.
The sample variance $s^2$ is calculated from the sample, and used as an estimate for the population variance. Thus, it can be said that it represents both 362 and 5530 customers, and the correct option is D.

A similar problem is given at brainly.com/question/4086221

6 0

1 year ago

PLEASE ANSWER ASAP!

muminat

Answer:

I think it volume will be 234m3

7 0

1 year ago