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
bulgar [2K]
2 years ago
6

A major car manufacturer wants to test a new engine to determine if it meets new air pollution standards. The mean emission, μ,

of all engines of this type must be approximately 20 parts per million of carbon. If it is higher than that, they will have to redesign parts of the engine. Ten engines are manufactured for testing purposes and the emission level of each is determined. Based on data collected over the years from a variety of engines, it seems reasonable to assume that emission levels are roughly Normally distributed with σ = 3 parts per million of carbon. What are the appropriate null and alternative hypotheses?
Mathematics
1 answer:
bonufazy [111]2 years ago
8 0

Answer:

Step-by-step explanation:

the appropriate null and alternative hypotheses's are something

You might be interested in
Draw a histogram to represent the set of data
shtirl [24]
This is the histogram to ur questions

4 0
3 years ago
What is the domain of the function below? (0,2 (3,1) (5,2) (8,4)
KiRa [710]
{0,3,5,8} ok  this0 is the an0sw0er
7 0
3 years ago
Read 2 more answers
10 POINTS! PLEASE HELP!! The illustration shows a compact disc tray that holds five CDs. The radius of each compact disc is 9 cm
MariettaO [177]

We can see that there are 5 CDs, each of radius 9 cm

<u>Area occupied by 1 disc:</u>

Area of a circle = πr²

Area of disc = π(9)²

Area of disc = 3.14 * 81 = 254 cm²

<u>Area occupied by 5 discs:</u>

Area occupied by 5 discs = Area occupied by 1 disc * 5

Area occupied by 5 discs = 254 * 5

Area occupied by 5 discs = 1270 cm²

3 0
2 years ago
What is the equation of a line that its parallel to -3x+4y=4 and passes through the point (4,0)?
anzhelika [568]

Answer:

y=3/4x-3

Step-by-step explanation:

Okay so to be parallel to an equation of another line, the line must have the same slope but a different y-intercept. First, you need to find the slope of the equation -3x+4y=4. The equation must be in y=mx+b format, so you first move -3x to the right by adding it on both sides, leaving you with 4y=3x+4. Next, you divide 4y by 4 in order to isolate y and do that on the other side. Now, you have y=3/4x+1.

To find the equation of the new line, you must put the point and slope into point slope form: y-y1=m(x-x1). In the point (4, 0), 4 would be x1 and 0 would be y1. so, the new equation is y-0=3/4 (x-4). now, distrubute the 3/4, leaving you with y=3/4x-3. This is correct since the slope remains the same in both equations with a different y-intercept. To check deeper, you could place point (4, 0) on a graph and then rise 3, run 4 until you get the line :) hope this helps

7 0
2 years ago
A. -4,0,2<br> B. -2,0,4<br> C. -5,0,17<br> D. -17,0,5
Lostsunrise [7]

Answer:

You have three

-4,0, and 2 or the answer choice A

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Tom has 3 pounds of clay. He uses 3/4 pound to make a vase. how much clay is left?
    6·1 answer
  • Array with 2 rows of 5
    14·1 answer
  • the initial price for a horse is $39000.It is discounted by 40% and then by further 14%.Find the price of the item.
    9·1 answer
  • Stacey is a resident at your medical facility where you work you are asked to chart the amount of solid food that she consumes f
    5·2 answers
  • PLEASE HELP! 40 POINTS
    7·2 answers
  • Three highways connect the centers of three towns and form a triangle. A cell phone company wants to place a new cell tower so t
    12·2 answers
  • Can someone help me out with this inequality problem?? Will give brainliest to best answer!!
    11·1 answer
  • I have to solve for H​
    7·1 answer
  • Hello Please Find The Answer To This Question (easy) Part 2
    9·1 answer
  • Solve the following using the elimination or substitution method. Show all work.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!