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
Vilka [71]
3 years ago
12

Let's say you are playing a coin-tossing game with a friend. You toss the same coin 500 times, and 400 times it comes up heads.

Would this be normal? What could explain it?
Mathematics
1 answer:
zimovet [89]3 years ago
8 0
Yes, because there is a 50 50 chance that it can land head or tails. 
You might be interested in
The volume of a cylinder, V, in terms of radius, r,
Igoryamba

Answer:

See explanation

Step-by-step explanation:

Volume of a cylinder = πr²h

Solve for r

V = π * r² * h

r² = V/πh

Find the square root of both sides

r = √V/πh

If height = 6 meters and volume = 300 cubic meters. Find r

r = √V/πh

= √(300/3.14*6)

= √(300/18.84)

= √15.923566878980

r = 3.9904344223381

Approximately,

r = 4 meters

5 0
2 years ago
Twice a number plus 6 times the number is -72.
katen-ka-za [31]

Answer:

The number is -9

Look at the attachment

7 0
2 years ago
a painter bought 8 gallons of paint just enough to cover 2 rooms. One room is twice the size of the other and requires only 2 co
e-lub [12.9K]
So, he's got 8 gallons of paint, to paint the two rooms, of the two rooms, one is twice as big as the other

now, "x" is how many gallons to paint the larger room with only one coat, however, the larger room uses 2 coats, so, the larger room uses 2x of paint
now, the client declined to paint the smaller one

so hmmm as I read... well, we dunno how many coats will go to the smaller room for one, we know the larger will use 2 coats, or 2x.. if we assume the smaller room was going to use say 1 coat or 1/2x

then one can say the painter bought enough for both rooms, 1coat for the small one and 2coats for the larger one

so, the paint the larger room, you'll 2x of paint, for 2coatsand to paint the smaller room, you'll need 1/2 x, because x gallons is how much is needed for the larger room, but the larger room is twice as big, thus the smaller room uses 1/2 of that in gallons

thus, with those assumptions, that the small room will use only 1 coat
\bf \cfrac{1}{2}x+2x=8\implies \cfrac{5x}{2}=8\implies x=\cfrac{16}{5}
that's who many gallons are needed for 1 coat in the larger roomrecall "x" is 1coat for the larger room

now, the client decides to skip the smaller roomso, the painter will only need 2x gallons then

\bf 2x\implies 2\cdot \cfrac{16}{5}\implies \cfrac{32}{5}\implies 6.4\ gallons

he bought 8 gallons, 8 - 6.4, he's got left 1.6 gallons
3 0
2 years ago
Read 2 more answers
The length of the shadow on flat ground of a man who is 6 feet tall and is standing up straight is 8 feet. The distance between
WARRIOR [948]
The answer is 10 ft.  make a triangle 6ft tall, 8ft long (90 degrees to the other line) and draw a line to complete the triangle.  This is a type of 3,4,5 triangle, a 6,8,10.  The other way to do it is sqrt(6^2+8^2) = sqrt(36+64) = sqrt (100) = 10.

3 0
3 years ago
Enter the value of x.
dlinn [17]
10 is the answer because using the Pythagorean theorem 6^2 + 8^2 = 100. The square root of 100 would be 10
3 0
2 years ago
Read 2 more answers
Other questions:
  • 3/4÷5 equal djdjjfjfndjdjdjrj
    6·1 answer
  • Ter 1: Solving Simple Equation Solve x +5 = 8.​
    15·2 answers
  • What is the percentage increase for a population that is changed from 438000 561000
    5·1 answer
  • What is the order of operation in math expressions?
    6·1 answer
  • In Mrs.Ramons class, the ratio of boys and girls is 2 to 3. The class has 30 students. How many girls are in Mrs.Ramons class?
    6·1 answer
  • I"LL GIVE BRAINLIST!!!
    10·2 answers
  • State the domain and range of the following set
    6·1 answer
  • 5. X&lt;5<br><br> Put it on a line plot
    6·1 answer
  • EASY MATH CHALLENGE NEED EXPLANATION 20 POINTS The board game Kings crown has, red, green, and gold gems for the players to earn
    9·1 answer
  • Find the volume, V, of the solid obtained by rotating the bounded region in the first quadrant enclosed by the graphs of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!