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
Margarita [4]
2 years ago
9

Determine a rational number that is located between -2 1/4 and -2.8

Mathematics
2 answers:
makvit [3.9K]2 years ago
8 0

Answer:

7

Step-by-step explanation:

Marina CMI [18]2 years ago
4 0

Answer:

Step-wwwkwnwby-step explanation:

You might be interested in
Solve these equations. Thanks.
Nutka1998 [239]

Answer:

1. 3.572 x 10^(-1)

2. 3.108 x 10^(6)

3. 5.31881533 x 10^(-6)

4. 4.18676122 x 10^(-1)

Hope this helps

8 0
3 years ago
Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL) in 100 randomly selected a
charle [14.2K]

Answer:

Step-by-step explanation:

a)

Confidence interval in less than symbol expressed as

\bar{x} - E < \mu < \bar{x} + E&#10;

Where \bar{x} is sample mean and  E is margin of error.

13.03 < \mu 13.42&#10;

b)

The given t interval is (13.032 , 13.418 )&#10;

That is \bar{x} - E = 13.032 and \bar{x} + E = 13.418

Solve these two equation by adding together.

2 \bar{x} = 13.032 + 13.418&#10;\\\\\bar{x} = 13.225

Solve this value of \bar{x} in equation \bar{x} - E = 13.032 and solve for E

13.225 - E = 13.032&#10;\\\\E = 0.193&#10;

Best point estimate of \mu = \bar{x} = 13.225&#10;

Best point estimate of margin of error = 0.193

c)

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

sample data appear to be form a population with normal distribution.

8 0
2 years ago
Find the equation of the line that is parallel to the line x + 5y = 10 and passes through the point (1,3).
Nataliya [291]

Answer:

Step-by-step explanation:

for two lines to be parallel they MUST have the same slope but have different Y intercepts ( Y axis crossing values)

parallel lines will never intersect each other

first I use a graphing calcuator to solve the problem

I like to use y intercept form better, but you don't have use it

I will try to solve it directly without going through the y intercept equation

x + 5y = 10    in y intercept form y = mx + b is

5y = -x + 10     divide both sides by 5

y = -x/5 + 10/5    

y = -x/5 + 2

Now I need to find a parallel line that passes through the x =1 and y = 3 point recall this line will have the same slope =     m = -1/5

and a different Y axis crossing point 'b' that we don't know

y = -x/5 + b      y = 3 when x = 1 so slove for 'b'

3 = -1/5 + b

3 = -0.2 + b    add -0.2 to both sides

3.2 = b

y = -x/5 + 3.2     this is answer in y intercept form

                          if you multiply both sides by 5

5y = -x + 16        add x to both sides

x + 5y = 16         answer in standard form

THE EASIER WAY TO SOLVE THE PROBLEM IS ......

x + 5y = 10      find a line parallel that passes through x  = 1,  y = 3  

x + 5y = Z       Z is an unknown value  plug in x and y and solve for Z

1 + 5(3) = Z

Z = 16              so the parallel line in standard form is

x + 5y = 16    

same as before,  my y intercept method was correct, but not  worth the effort

       

6 0
3 years ago
How far would a runner that ran 200 meters in minute run in 3 minutes at the same rate?
loris [4]

Answer:

I think 200x3

Step-by-step explanation:

200x3 = 600

7 0
2 years ago
Read 2 more answers
if a right triangle has on leg measuring 27 and another measuring 22 what is the length of the hypotenuse??
Zanzabum
Use the equation c^2 = a^2 + b^2.

6 0
3 years ago
Other questions:
  • If x = −4 is a zero of the polynomial function f(x) = 2x3 + 13x2 + 23x + 12, which of the following is another zero of f(x)
    9·1 answer
  • When Richards solved the equation 2(x - 5) = 56 + 6(x - 5), he used the distributive property in step one to write an equivalent
    7·1 answer
  • The manager at Gabriel's Furniture Store is trying to figure out how much to charge for a bookshelf that just arrived. The books
    7·1 answer
  • (5x-6)(-x+4) using the box method
    12·1 answer
  • -2/3×3/5+5/2-3/5×1/6​
    8·1 answer
  • Soooo this was from yesterday and well i need to finish it so help
    5·2 answers
  • A line has a slope of -1/2 and a y-intercept of -2. what is the x-intercept of the line?​
    5·1 answer
  • Return to the original problem. PEMDAS says to multiply before adding. But could you have performed a different operation and st
    7·1 answer
  • Find the length of side a​ HURRRY
    10·1 answer
  • For the function g(x) = -4x + 6, what input value results in an output value of 6?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!