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
Klio2033 [76]
3 years ago
15

A​ veterinarian's dipping vat holds 55 gallons of liquid. She normally fills it 4/5full of a medicated flea dip solution. Find h

ow many gallons of solution are normally in the vat.
Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

if the tank holds 25 gallons and the vet normally fills it to a level of 4/5, then

25 • (4/5) = 100/5 = 20

20 gallons of solution are normally in the vat.

Step-by-step explanation:

You might be interested in
Which relationship describes angles 1 and 2?
Mnenie [13.5K]

Answer:

Step-by-step explanation:

1 and 2 are vertical angles

6 0
3 years ago
Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years old. How large a sample size
julsineya [31]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.01}{2.58})^2}=16641  

And rounded up we have that n=16641

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.005. And the critical value would be given by:

z_{\alpha/2}=-2.58, t_{1-\alpha/2}=2.58

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.01 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

For this case we can use as estimator for the proportion \hat p =0.5, since we don't have any other previous info. And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.01}{2.58})^2}=16641  

And rounded up we have that n=16641

8 0
3 years ago
Find the sum of 10 x 2 + 7 x + 6 10x 2 +7x+6 and 6 x + 5 6x+5.
dusya [7]

The sum of the given expression expressed as a quadratic equation is 10x^2 + 13x + 11

<h3>Sum of expressions</h3>

Expressions are equations separated by mathematical signs. This expressions are known to contains certain unknowns

Given the following expression

10x^2 +7x+6 and 6x + 5

We are to take the sum of both expression to have:

f(x) = 10x^2 +7x+6 + 6x + 5

Collect the like terms

f(x) = 10x^2 + 7x + 6x + 6 + 5

f(x) = 10x^2 + 13x + 11

Hence the sum of the given expression expressed as a quadratic equation is 10x^2 + 13x + 11

Learn more on sum of functions here: brainly.com/question/11602229

#SPJ1

8 0
1 year ago
Help!!!!!!!!!!! please!!!!!!!!!
ohaa [14]

Answer: The first one is not a function the second is a function the third one is not one and the fourth one is

Step-by-step explanation:

3 0
3 years ago
Which correctly names the line in this figure?<br><br> A.A<br> B.HG<br> C.F<br> D.FGH
MAVERICK [17]
B

Two points is a line
One capital letter is the plane
4 0
3 years ago
Other questions:
  • What is the percent chance of getting 5 twice if there is only a 1/12 chance of spinning the wheel on it. I multiplied the 1/12
    9·2 answers
  • If a person drives 75 miles in two hours, how long would it take in five hours? What it be at 17 hours?
    8·2 answers
  • On a coordinate grid, point P is at (5, 8) and point R is at (−1, −3). Points Q and S are a reflection of both points across the
    7·1 answer
  • 4(-x+4) =12 solve for x
    13·1 answer
  • Notebooks come in four colors: red, blue, green and purple. They also come in two sizes, 5-subject and 3-subject. How many possi
    10·1 answer
  • What is 9/20 7/20 9/20?
    11·2 answers
  • Which of these problem types can not be solved using the Law of Sines?
    5·1 answer
  • Stouffville currently has a population of 60 000 people. The population is expected to increase by 4% each year. What will be th
    13·1 answer
  • Hi can you guys please help me on these two?!
    12·2 answers
  • Help asap pls!!! Put steps if possible 3
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!