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
torisob [31]
3 years ago
13

PLEASEEE HELPP MEE WITH MATHHH NUMBERS 8 AND 12!!!!!!

Mathematics
1 answer:
Usimov [2.4K]3 years ago
8 0

Answer: edit* here you go! both answers here :) sorry for the wait!!!

Step-by-step explanation:

You might be interested in
Suppose the number of gallons of gasoline per day used by a car is normally distributed with a mean of 2.2 gallons and a standar
const2013 [10]
The difference in gallons per day used is 3.6.

The formula to calculate a z-score is:
z=\frac{X-\mu}{\sigma},

where X is the value used to calculate the score, μ is the mean and σ is the standard deviation.  We have the z-scores so we must work backward:

3=\frac{X-2.2}{1.2}\text{ and }0=\frac{X-2.2}{1.2}

For both equations, we will cancel the 1.2 by multiplying both sides:
3\times1.2=(\frac{X-2.2}{1.2})\times1.2\text{ and }0\times1.2=(\frac{X-2.2}{1.2})\times1.2
\\
\\3.6=X-2.2\text{ and }0=X-2.2

Now we will cancel 2.2 from both equations by adding it to both sides:

3.6+2.2=X-2.2+2.2     and       0+2.2=X-2.2+2.2
5.8=X     and       2.2=X

The difference in gas used per day would be given by
5.8-2.2 = 3.6.
5 0
3 years ago
Kelly collected $15, $15, $25, and $29 in the last 4 donations for the class fundraiser. The mean of the donations is _____?
photoshop1234 [79]

Answer:

21

Step-by-step explanation:

To find the mean, add up all the numbers

15+15+25+29 =84

Divide by the number of numbers

84/4 = 21

4 0
2 years ago
Read 2 more answers
PLS help me with this!
shepuryov [24]
He can make 32 sandwiches. Since he uses 1/8 pound of cheese for each sandwich, he can make 8 sandwiches using 1 pound of cheese (1/8 x 8 = 1). Now that you know he can make 8 sandwiches with 1 pound of cheese, multiply 8 (this is the sandwiches) by 4 (pounds of cheese).
4 0
3 years ago
I have no clue what the answer is... helo
icang [17]

I think the first part is 466

6 0
2 years ago
Read 2 more answers
Plsss help me thanks :D
RSB [31]

Answer:

y

Step-by-step explanation:

First you would find y because two or more of the numbers have it. Then you would be able to solve for x

7 0
2 years ago
Other questions:
  • Mary is converting 30 yards per hour into feet per hour. What conversion should she use?
    7·1 answer
  • What two integers are between the square root of 62
    7·1 answer
  • The volume of air inside a rubber ball with radius r can be found using the function v(t)=4/3(3.14)r^3. What does v[5/7] represe
    12·1 answer
  • Fahim is 6 feet tall. At noon, he stands with the sun behind him casting a shadow. The distance from the top of Fahim’s head to
    14·2 answers
  • Which is equal to –214°?
    15·1 answer
  • Assume that adults have IQ scores that are normally distributed with a mean of 94 and a standard deviation of 14. Find the proba
    5·1 answer
  • Find the volume of the sphere. express your answer in term of Pie​
    7·1 answer
  • HELP QUICK PLEASEEEE!!!!!!!!!!!!!!!! What is the intersection point for y=-3/2x-7 and y=5/6x+7!!!!
    10·1 answer
  • If f(x) = 2x – 1 and g(x) = f(x + 1), how does the graph of g compare with the graph of f?
    5·1 answer
  • A linear function contains the following points. What are the slope and y-intercept of this function?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!