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
jeyben [28]
3 years ago
11

If you flip a coin 50 times, how many times would you expect it to land on heads

Mathematics
2 answers:
timurjin [86]3 years ago
8 0

Answer:

D.25

Step-by-step explanation:

D.25 because its 2 sided and the problitly is 50% heads and 50% tails which means if you flip it 50 times you should except to get half the amount 25.

likoan [24]3 years ago
6 0

Answer:

A

Step-by-step explanation:

You might be interested in
The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant
ira [324]
\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------

\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k
4 0
3 years ago
What is the answer to 10 1/2 •15 1/8
LenKa [72]

Answer:

19.6875

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help me with my math
Natasha_Volkova [10]

Answer:

The answer is C

Step-by-step explanation:

the y-intercept is going through 0 therefore there would be no "b" in the y=mx+b formula

3 0
2 years ago
4th term of (4x-y)^9
Neko [114]
Now, let's do the same as we did for the previous one here.

\bf (4x-y)^9\implies 
\begin{array}{llll}
term&coefficient&value\\
-----&-----&-----\\
1&+1&(4x)^9(-y)^0\\
2&+9&(4x)^8(-y)^1\\
3&+36&(4x)^7(-y)^2\\
4&+84&(4x)^6(-y)^3
\end{array}

notice again, how did we get 84 for the 4th element's coefficient? well 36 * 7 / 3.  and so on.  And you can just expand it from there.
3 0
3 years ago
D=6, Dx=-6, Dy=-24, Dz=-30 what is the solution set
Elis [28]

Answer:

  (x, y, z) = (-1, -4, -5)

Step-by-step explanation:

(x, y, z) = (Dx, Dy, Dz)/D = (-6, -24, -30)/6

(x, y, z) = (-1, -4, -5)

3 0
3 years ago
Other questions:
  • What is (-9x)+(-14x)=?
    9·2 answers
  • the total number of tourists to an amusement park in the past year is 12,000,000 when rounded to the nearest million.The number
    11·1 answer
  • When baking a cake, you have a choice of the following pans:
    7·1 answer
  • Write your answer as a whole number or a mixed number in simplest form. Include the correct unit in your answer.
    7·2 answers
  • 1. m+ 10< 16
    15·1 answer
  • A truck engine needs 3 1 over 4 gallons of oil change.How many quarts of oil are needed
    13·1 answer
  • Given: ABCD is a quadrilateral, BC║AD, m∠ A = 90°
    10·1 answer
  • Which shows two possible values for a number represented by the point?
    11·1 answer
  • 8. Paris used a semicircle, a rectangle, and a right triangle to form the figure shown.
    9·1 answer
  • Jacob wanted to purchase a boat. The dealership offered the following payment terms for Jacob: an $800 down payment and $275 a m
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!