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3 years ago

Can anyone please help ASAP, will give thanks and all that fun stuff

Mathematics

1 answer:

Sonja [21]3 years ago

5 0

We can begin by taking each part of the table and writing it out as a term of the geometric sequence. For example, for n=4, we have ar^3=6, and for n=9 we have ar^8=-192. Then, we can divide these two terms to get r^5=-32. Taking the fifth root on both sides, we get that r=-2. We can then just plug this in, getting -8a=6, or that a=-3/4, giving us B.

(every time i use a in this, i mean a1)

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What step should you do before you write an equation to solve a word problem? 20 points

ra1l [238]

Answer:

Hewo! :3

A nice trick i use for word problems is that i highlight the numbers and what they are, like: liters, kilograms, grams, etc. say this is your word probem:

Suzie made 30 kilograms of party mix chips and 40 liters of punch for her party, Suzie had 20 people at her party, how much punch and party mix chips will there be when the party is over?

I highlighted what i would have highlighted if it was a real word problem.

Good luck! Hope my trick works for you too!

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3 years ago

Help please i will give brainlest

Anton [14]

Your answer is B. 3 13/24

Hoped this helped :)

Have a wonderful day-

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2 years ago

Read 2 more answers

I will give 100 points to the first answer that is correct

matrenka [14]

Answer: D) 32

Each side of the cube is 8 units, so the perimeter of one side is 4*8 = 32.

8 0

3 years ago

Read 2 more answers

Of 150 adults selected randomly from one town, 30 of them smoke. Construct a 99% confidence interval for the true percentage of

anyanavicka [17]

Answer:

The 99% confidence interval for the true percentage of all adults in the town that smoke is (0.1159, 0.2841).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

Of 150 adults selected randomly from one town, 30 of them smoke. This means that $n = 150, p = \frac{30}{150} = 0.2$

99% confidence interval

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.20 - 2.575\sqrt{\frac{0.20*0.80}{150}} = 0.1159$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.20 + 2.575\sqrt{\frac{0.20*0.80}{150}}{119}} = 0.2841$

The 99% confidence interval for the true percentage of all adults in the town that smoke is (0.1159, 0.2841).

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3 years ago

If tan x° = 11 divided by r and cos x° = r divided by s , what is the value of sin x°

Oksana_A [137]

Sin x =11.r We know tan x = sin x divided cos x If you plug in 11 instead of tan x and r for cos x you will have the answer

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3 years ago