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
Mademuasel [1]
3 years ago
7

9. Ellie is making a batch of pancakes

Mathematics
1 answer:
Vikki [24]3 years ago
4 0

Answer:

Step-by-step explanation:

Maybe your questions has some wrong numbers in it?  but, going by what's in your questions ,  just  1 cup of flour   :/   seems too easy

You might be interested in
To decrease the impact on the environment, factory chimneys must be high enough to allow pollutants to dissipate over a larger a
Komok [63]

Answer:

The probability hat the sample mean height for the 40 chimneys is greater than 102 meters is 0.1469.

Step-by-step explanation:

Let the random variable <em>X</em> be defined as the height of chimneys in factories.

The mean height is, <em>μ</em> = 100 meters.

The standard deviation of heights is, <em>σ</em> = 12 meters.

It is provided that a random sample of <em>n</em> = 40 chimney heights is obtained.

According to the Central Limit Theorem if we have an unknown population with mean <em>μ</em> and standard deviation <em>σ</em> and appropriately huge random samples (<em>n</em> > 30) are selected from the population with replacement, then the distribution of the sample means will be approximately normally distributed.

Then, the mean of the distribution of sample means is given by,

\mu_{\bar x}=\mu

And the standard deviation of the distribution of sample means is given by,

\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}

Since the sample selected is quite large, i.e. <em>n</em> = 40 > 30, the central limit theorem can be used to approximate the sampling distribution of sample mean heights of chimneys.

\bar X\sim N(\mu_{\bar x},\ \sigma^{2}_{\bar x})

Compute the probability hat the sample mean height for the 40 chimneys is greater than 102 meters as follows:

P(\bar X>102)=P(\frac{\bar X-\mu_{\bar x}}{\sigma_{\bar x}})>\frac{102-100}{12/\sqrt{40}})

                    =P(Z>1.05)\\=1-P(Z

*Use a <em>z</em>-table fr the probability.

Thus, the probability hat the sample mean height for the 40 chimneys is greater than 102 meters is 0.1469.

8 0
3 years ago
Simplify:$$\sqrt{2\sqrt{8^2+15^2}+\sqrt{9^2+40^2}}$$
bagirrra123 [75]

Answer:

5\sqrt{3}

Step-by-step explanation:

\sqrt{2\sqrt{8^2+15^2}+\sqrt{9^2+40^2}}=?\\\\1)\sqrt{8^2+15^2}=\sqrt{289}=17\\2)\sqrt{9^2+40^2}=\sqrt{1681}=41\\3)2\times17=34\\4)\sqrt{34+41}=5\sqrt{3}

All Done!

8 0
3 years ago
Read 2 more answers
What is the algebraic expression for: four less than three times the number of egg orders and six more than two times the number
Ira Lisetskai [31]
3n - 4 + 6 + 2n

I believe that's the answer!
5 0
3 years ago
What is 5/20 as a percent if you could give an explanation that would be good but if not thats okay
Liono4ka [1.6K]
5/20 can also be represented as 25/100 or 25%. The can be done by multiplying the top and bottom both by 5 and then dividing our numerator (25) by our denominator(100) to get the %.
3 0
2 years ago
Read 2 more answers
What is the answer so pwease help
bezimeni [28]
U see I would help but just because u said “pwease” I’m not :)
4 0
2 years ago
Other questions:
  • Why is .9 repeating NOT equal to one.
    7·2 answers
  • What would be a reasonable estimate for 31+m=307
    9·2 answers
  • The smaller of two numbers is 2 less than 3/4 the larger. The sum of the two numbers is 47. Find the value of the numbers.
    8·1 answer
  • 47 x 10^6 x 78 x 10^-3 in scientific notation
    6·1 answer
  • I need the complete answer to this problem, please circle the final answer and what I should write
    9·1 answer
  • Please help!!!!!!!!!!!!!
    9·1 answer
  • I need help with all of them please ​
    9·2 answers
  • Four less than one-third of the product of mine fourths and eight<br><br> What is the expression?
    11·1 answer
  • Brett has 2/3 a pound of a pound of almonds to divide equally among 4 bags. Find the amount of almonds that will be in each bag.
    14·2 answers
  • Help pls :,) (pls dont delete this) Is it C. or D.?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!