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tekilochka [14]

3 years ago

8

One less than the quotient of four and number x

1 answer:

hichkok12 [17]3 years ago

8 0

4/x-1 would be the equation written from that statement.

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Help!!!<br> I will mark the person who answers with an actual answer brainliest<br> Due soon

Gwar [14]

Answer:

Im not entirely sure but i think that either a or d is correct

Step-by-step explanation:

hope this helps!

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3 years ago

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The question is in the photo. Please answer with the correct answer.

vlabodo [156]

Answer:

18ft

Step-by-step explanation:

just add all the sides. since it’s a rectangle, you there is 2 sides that’s 3ft long and that are 6ft long. so you would do 3+3+6+6

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3 years ago

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Lim x -4 sqrt x+20 - sqrt 12-x x^ 2 +3x-4 =

belka [17]

hey jay sorry for the phone number but i did not respond yet but i will text you back when you leave the office

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3 years ago

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What is the value of x in the equation 1.8 minus 3.7 x = negative 4.2 x + 0.3?

aniked [119]

Answer:

-3

Step-by-step explanation:

1. subtract 0.3 from both sides

2. add 3.7x to both sides

3. Divide both sides by -0.5

3 0

3 years ago

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The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin

bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, $Z_{Critical}=1.645$ .

We also know that E=5% or E=0.05

Also, since, $\hat{p}$ is not given, we will assume that $\hat{p}$ =0.5. This is because, the formula that we use will have $\hat{p}(1-\hat{p})$ in the expression and that will be maximum only when $\hat{p}$ =0.5. (For any other value of $\hat{p}$ , we will get a value less than 0.25. For example if, $\hat{p}$ is 0.4, then $1-\hat{p}=0.6$ and thus, $\hat{p}(1-\hat{p})=0.24$ .).

We will now use the formula

$n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})$

We will now substitute all the data that we have and we will get

$n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)$

$n=(32.9)^2\times0.25$

$n=270.6025$

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0

3 years ago