1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
White raven [17]
2 years ago
9

What number is 80% of 80?

Mathematics
1 answer:
gtnhenbr [62]2 years ago
3 0

Answer:

<em>6</em><em>4</em><em> </em><em>IS</em><em> </em><em>THE</em><em> </em><em>ANSWER</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

You might be interested in
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
Which equation represents a function of x that is not linear?
AnnyKZ [126]

Answer:

y = 4x+3x^2

Step-by-step explanation:

For an equation to be linear, x must have a power of 1

y = 4x+3x^2 has a power of x that is not x  ( x^2) so this is not linear  ( it is quadratic)

8 0
3 years ago
Write in slope-intercept form an equation of the line that passes through the given points.
KonstantinChe [14]
Y=1/3x-3 Is the answer to it
7 0
3 years ago
Read 2 more answers
Riley is starting her own laundry business. Riley thinks she will do a better job than her competitors, so she thinks she can ch
RoseWind [281]

Answer:

b

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
On a 16 scale drawing of a bike, one part is 3 inches long. How long will the actual bike part be?
Arisa [49]
You would multiply 16*3 to get an estimate. 
16*3= 48
The bike would be about 48 units.
I'm assuming you mean a 16:1 scale.
16:1= 16/1 which =16 
Hope this helps!

4 0
2 years ago
Read 2 more answers
Other questions:
  • Please help me. will give brainliest
    5·1 answer
  • Which angle is the smallest?
    11·1 answer
  • Find the length of AB.<br> A.<br> 2<br> B.<br> 6<br> C.<br> 21<br> D.<br> 31
    9·1 answer
  • What is an equivalent expression to q(2a+1)
    10·2 answers
  • A rational expression simplifies to1/2 The denominator of the original expression is given. Which polynomial is the numerator?
    7·1 answer
  • What is 68.52 rounded to the nearest whole number?
    10·1 answer
  • Damien recently purchased a plot of land in the shape of a pentagon. He is planning to install a perimeter fence.
    5·1 answer
  • Roberto cut 12 meters of string into 4 equal sized pieces. How long is each piece of string in centimeters?
    10·1 answer
  • 3(2x+6)<br> Distributive Property<br> Explain how u got it.<br><br> Will mark Brainliest.
    14·2 answers
  • Help please, question attached
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!