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2 years ago

Please help! I really need this

Mathematics

1 answer:

olga55 [171]2 years ago

6 0

9514 1404 393

Answer:

see below

Step-by-step explanation:

You might do well to refer to the proof referenced here--the previous slide. We assume it more or less matches what we've done in the attachment.

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Find the sum of the first 7 terms of the following series, to the nearest integer. 150,60,24...

Sonja [21]

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them. The sum of the first seven terms of the series is 249.

<h3>What is geometrical series?</h3>

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them.

The given series is an geometric series, the details of the series are:

a₁ = 150

r = 60/150 = 0.4

n = 7

The sum of the geometric series is,

S = 150(1-0.4⁶)/(1-0.4)

S = 248.976 ≈ 249

Hence, the sum of the first seven terms of the series is 249.

Learn more about Geometrical Series:

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4 0

2 years ago

Read 2 more answers

A watermelon at the grocery store weighs 4.5 kg. How much does the watermelon weigh in pounds and ounces?

jasenka [17]

Answer: 4.5kg = 9.9208lbs

4.5kg = 158.733oz

6 0

2 years ago

Describe how the graph of y= 1/3x is the same and different from the graph of y= 1/3x - 4

uranmaximum [27]

Answer:

the lines have the same slope

the y-intercept of the lines are different

Step-by-step explanation:

7 0

3 years ago

An independent-measures research study uses two samples, each with n = 12 participants.If the data produce a t statistic of t =

lana [24]

Answer:

B- It cannot be answered without additional information.

Step-by-step explanation:

From the question, we have α= 0.01 and α= 0.05.

Thus;

We can decide to look at the critical values and check if test statistic is less or more than the tabulated value for α= 0.01 and 0.05.

However, that will not be sufficient as neither the level of significance nor confidence level is clearly mentioned in the question and thus, we can not answer it without additional information.

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2 years ago

the numbers 2-12 are written on cards and placed in the bag.what is the probability of picking an even number then replacing it

lorasvet [3.4K]

We have the cards numbered as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12.

Sample number is, n(S)=11.

We pick a card and want to get even number like 2, 4, 6, 8, 10, and 12.

Probability of picking an even number would be :-

P(even numbers) = $\frac{6}{11}$