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
stepan [7]
2 years ago
13

5. A quarter is tossed in the air 300 times.

Mathematics
2 answers:
tankabanditka [31]2 years ago
3 0

Answer:

C

Step-by-step explanation:

The probability of getting heads or tails is 50%.

300*50% = 150

guapka [62]2 years ago
3 0

Answer:

C. 150 times

Step-by-step explanation:

Because a coin only has tails and heads, you can say that the probability would be half. Because it was tossed 300 times, you can say: 300*0.5=150

You might be interested in
Oscar is buying 4 new tires for his car. He has $240 budgeted for the tires, but can afford to pay $35 more or less than that am
Pachacha [2.7K]

Given that the dealer sells a dozen tires for $240, every 3-tire set costs $60. There are six 2-tire sets in a dozen. Thus, his total revenue should be $360. The total profit is the difference between the total revenue and the total cost. The answer is therefore, the first choice, $120.

4 0
3 years ago
Read 2 more answers
Can I get help with finding the Fourier cosine series of F(x) = x - x^2
trapecia [35]
Assuming you want the cosine series expansion over an arbitrary symmetric interval [-L,L], L\neq0, the cosine series is given by

f_C(x)=\dfrac{a_0}2+\displaystyle\sum_{n\ge1}a_n\cos nx

You have

a_0=\displaystyle\frac1L\int_{-L}^Lf(x)\,\mathrm dx
a_0=\dfrac1L\left(\dfrac{x^2}2-\dfrac{x^3}3\right)\bigg|_{x=-L}^{x=L}
a_0=\dfrac1L\left(\left(\dfrac{L^2}2-\dfrac{L^3}3\right)-\left(\dfrac{(-L)^2}2-\dfrac{(-L)^3}3\right)\right)
a_0=-\dfrac{2L^2}3

a_n=\displaystyle\frac1L\int_{-L}^Lf(x)\cos nx\,\mathrm dx

Two successive rounds of integration by parts (I leave the details to you) gives an antiderivative of

\displaystyle\int(x-x^2)\cos nx\,\mathrm dx=\frac{(1-2x)\cos nx}{n^2}-\dfrac{(2+n^2x-n^2x^2)\sin nx}{n^3}

and so

a_n=-\dfrac{4L\cos nL}{n^2}+\dfrac{(4-2n^2L^2)\sin nL}{n^3}

So the cosine series for f(x) periodic over an interval [-L,L] is

f_C(x)=-\dfrac{L^2}3+\displaystyle\sum_{n\ge1}\left(-\dfrac{4L\cos nL}{n^2L}+\dfrac{(4-2n^2L^2)\sin nL}{n^3L}\right)\cos nx
4 0
3 years ago
With the beam being held still at a height of 40 m, the crane breaks and the beam falls to the ground. Assuming no air resistanc
lapo4ka [179]
What we have so far:
Kinetic energy = 0. The reason behind that is because the beam is not moving at a height of 40m.
Gavity, g = 9.8m/s²
Height = 40m
Potential energy = mgh; this is equal to 0 because m, stands for mass and in this problem, we do not have a value for the mass of the beam. Hence, 0 x 9.8m/s² x 40m = 0. Potential energy = 0.

Solution:
We will use the equation of Total energy:
TE = potential energy + kinetic energy

TE = 0 + 0

∴ TE = 0

The answer is: Assuming no air resistance, the total energy of the beam as it hits the ground is 0.
8 0
3 years ago
I don’t know the last one :( help
klasskru [66]
Letter m

Brainliest? Yo
5 0
3 years ago
Read 2 more answers
Where the perimeter of the base is 7.1 cm and the height of the pyramid is 10.8 cm
xz_007 [3.2K]

Answer:

17.9cm

Step-by-step explanation:

Its is very easy you just add 7.1 to 10.8.

Perimeter you add

Area you multiply

4 0
3 years ago
Other questions:
  • How do I graph -2y+x=2y-8
    6·1 answer
  • QUICKLY<br> A sphere has a radius of 4 in. Which equation finds the volume of the sphere?
    13·1 answer
  • What is the perimeter, P, of a rectangle that has a length of x + 8 and a width of y − 1?
    15·2 answers
  • PLEASE HELP HERES CONTEXT FOR THE WORK PLEASE PLEASE HELP: ROSEMARY HONEY VEGAN BREAD RECIPE
    14·1 answer
  • Look at pic 10 pts will mark brainilest sh
    5·1 answer
  • The histogram shows the results of a survey asking students how many windows are in their homes.
    10·1 answer
  • A system of equations is created by using the line represented by2x+4y=0And the line represented by the data in the table below
    7·1 answer
  • Please help me graph the point (7 ,4).
    15·1 answer
  • May someone please help me, this is a division solving problem, but i need the calculation! not just “9.36 divided by 3”. please
    8·1 answer
  • In using the multiple regression method, we can model the effects of the different levels of a qualitative independent variable
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!