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
LekaFEV [45]
3 years ago
6

jason sees that 2 out of every 5 cars that passes by his house has the windshield wipers on. What is the probability that that o

f the next 4 cars that pass his house, 2 will have their windshield wipers on?
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0
Maybe like fifty percent ?
You might be interested in
Mr. Gephart is traveling from his house to the history museum. How many meters will he travel to the museum? The distance from h
snow_lady [41]

Answer: 6700 meters

Step-by-step explanation:

From the question given, we are informed that Gephart is traveling from his house to the history museum and that the distance from home to the history museum is six and seven-tenths kilometers.

In order to know the distance in meters

that he will travel to the museum, we have to multiply the convert the distance given in kilometers to meters. This will be:

1000 meters = 1 kilometer

Therefore, 6 7/10km = (6 7/10 × 1000m)

= 6 7/10 × 1000

= 67/10 × 1000

= 67 × 100

= 6700 meters

He'll travel 6700 meters to the museum.

7 0
3 years ago
Please help and show your work . Thanks if the picture is upside down turn your device on portrait by locking it so it won't tur
Bezzdna [24]
So we know that the bag has total 15 cookies, and 1 cookie that does not have any raisin. Finally, the probability that one cookie won't have any raisin is 1/15 or 7 percent. Hope it help!
3 0
3 years ago
A certain marathon has had a wheelchair division since 1977. An interested fan wondered who is​ faster: the​ men's marathon winn
Dimas [21]

Answer:

A. The distribution of sample means of the differences will be approximately normal if there are at least 30 years of data in the sample​ and/or if the population of differences in winning times for all years is normal.

Step-by-step explanation:

In other to perform a valid paired test, one of the conditions required is that, data for both groups must be approximately normal. To attain normality, the population distribution for the groups must be normal or based on the central limit theorem, the sample size must be large enough, usually n > 30. Hence, once either of the two conditions are met, the paired sample will be valid.

8 0
3 years ago
HELP ASAP FOR BRAINLIEST!
salantis [7]

Answer:

  1. make sure calculator is in "radians" mode
  2. use the cos⁻¹ function to find cos⁻¹(.23) ≈ 1.338718644

Step-by-step explanation:

A screenshot of a calculator shows the cos⁻¹ function (also called arccosine). It is often a "2nd" function on the cosine key. To get the answer in radians, the calculator must be in radians mode. Different calculators have different methods of setting that mode. For some, it is the default, as in the calculator accessed from a Google search box (2nd attachment).

__

The third attachment shows a graph of the cosine function (red) and the value 0.23 (dashed red horizontal line). Everywhere that line intersects the cosine function is a value of A such that cos A = 0.23. There are an infinite number of them. You need to know about the symmetry and periodicity of the cosine function to find them all, given that one of them is A ≈ 1.339.

The solution in the 4th quadrant is at 2π-1.339, and additional solutions are at these values plus 2kπ, for any integer k.

__

Also in the third attachment is a graph of the inverse of the cosine function (purple). The dashed purple vertical line is at x=0.23, so its intersection point with the inverse function is at 1.339, the angle at which cos(x)=0.23. The dashed orange graph shows the inverse of the cosine function, but to make it be single-valued (thus, a <em>function</em>), the arccosine function is restricted to the range 0 ≤ y ≤ π (purple).

_____

So, the easiest way to answer the problem is to use the inverse cosine function (cos⁻¹) of your scientific or graphing calculator. (<em>Always make sure</em> the angle mode, degrees or radians, is appropriate to the solution you want.) Be aware that the cosine function is periodic, so there is not just one answer unless the range is restricted.

__

I keep myself "unconfused" by reading <em>cos⁻¹</em> as <em>the angle whose cosine is</em>. As with any inverse functions, the relationship with the original function is ...

  cos⁻¹(cos A) = A

  cos(cos⁻¹ a) = a

5 0
3 years ago
The dimensions of a rectangle are sqrt 50a^3b^3 and sqrt 200a^3
nignag [31]

Answer:

The student incorrectly simplified 10ab root 2a + 20a root 2a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x in the triangle shown below.
    5·2 answers
  • What is the rate of change to 2y=14x+6
    6·1 answer
  • plz help Pru, Piper, and Phoebe share spices in the ratio 5:3:4. If Pru has 24 more spices than Piper, how many spices does Phoe
    13·2 answers
  • The trapezoid has an area of 1,575 cm2, Which equation could you solve to find the height of the trapezoid?
    9·2 answers
  • SOMEONE PLEASE HELP ME!!!!DONT SKIP IT PLEASE!!
    11·1 answer
  • Jasmine cooked 1 5/6 kg of rice. Alice cooked 5/8 kg more than Jasmine. a. How many kg of rice did Alice cook? b. How many kg of
    14·1 answer
  • What is the slope of the linear function represented in the table?
    13·1 answer
  • HELP MEEEEEEEEEEEE PRETTY PLEASE
    7·2 answers
  • Go follow its datgurlmaribel
    11·1 answer
  • Y = (x)^(1/9)*Find f(x) when x=(1/2)Round your answer to the nearest thousandth.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!