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
Oksana_A [137]
2 years ago
6

Using only four 4's and any operational sign find the value of 8

Mathematics
1 answer:
torisob [31]2 years ago
4 0

Answer:

The answer is 4 + 4 + 4 - 4 = 8

Step-by-step explanation:

The four fours problem is one of the problems given in the book "The Man Who Calculated" by Malba Tahan, a Brazilian-born professor of mathematical sciences.

There are many complicated problems in this book made with the intention of using logic to find a value.

The 4 fours problem is based on using these numbers and using any operation to result in the numbers 1 through 10.

You might be interested in
What is the length of the edge of a cube with a<br> wolume of 512?
il63 [147K]
A≈8
V Volume

Using the formula
V=a3
Solving fora
a=V⅓=512⅓≈8



Therefore, to find the lenght of an edge of the cube, just find the cube root of the volume. In this case, the cube root of 512 is equal to 8.
3 0
2 years ago
Please helppp<br> if the slope of a line is 6 and a line is perpendicular to it, what is its slope?
astra-53 [7]

Answer:

-1/6

Step-by-step explanation:

flip the slope

\frac{6}{1}

becomes

\frac{1}{6}

now the slope is going down so it becomes negative

= -1/6

7 0
3 years ago
Sam worked on his science fair project for 1/4 hour on Friday and 1/2 hour on Saturday. What are four common denominators for th
tatyana61 [14]
4, 8, 12, 16 because they are all multiples of 4 and 2
5 0
3 years ago
Read 2 more answers
Jared is going to plant 20 small plants around the edge of a circular garden that is 8 feet in diameter. If he spaces the plants
Hatshy [7]

Answer:

The space between the plants is approximately 1.26ft

Step-by-step explanation:

Given

Circular Garden

Number of plants = 20

Diameter of garden = 8ft

First, the circumference of the garden needs to be calculated; This is so because the plants that will be placed at the edge of the garden will occupy the circumference of the circle.

Calculating the circumference....

Circumference = 2πr

Where r = radius

r = ½ * diameter.

r = ½ * 8ft

r = 4ft

So,

Circumference = 2π * 4

Circumference = 8π ft

Given that the plants will be spaced evenly.

The distance between them = Circumference ÷ Number of plants

Distance = 8π/20

Distance = 0.4π ft.

Solving further to get actual distance (take π as 22/7)

Distance = 0.4 * 22/7

Distance = 8.8/7

Distance = 1.2571428571 ft

Distance = 1.26ft (Approximated)

Hence, the space between the plants is approximately 1.26ft

3 0
3 years ago
Write this decimal as a fraction. 0.24 show work and steps
Alona [7]

Answer:

6/25

Step-by-step explanation:

0.24=24/100

24 divided by 4=6

100 divided by 4=25

24/100 = 6/25

6 0
2 years ago
Other questions:
  • so an athlete trains on a circular track of radius 40m and jogs 10 laps each day 5 days a week. how far dose he jog each week?
    10·1 answer
  • Given: 4 &lt; a &lt; 5, 2 &lt; b &lt; 4 Find: a/3b - b/3a<br><br> Please answer fast!!
    13·2 answers
  • The scale factor of figure JKLMN to figure PQRST is 3:2. If KL = 9 cm and MN = 15 cm, what is the length of side QR?
    13·1 answer
  • Easy Question, Easy Points<br><br><br><br>Topic: Volume
    5·2 answers
  • Write the equation of the circle with center (−3, −2) and (4, 5) a point on the circle.
    5·2 answers
  • The sum of three times a number and 28 is 484. Find the number.
    7·2 answers
  • Two of the angles of a triangle measure 40° and 100°. Classify the triangle
    7·2 answers
  • Can someone help 12 points on the line
    11·1 answer
  • Lin runs 8 laps around a track in 26 minutes.
    7·1 answer
  • HELPPPPP! Points scored in a basketball game vary directly with shots taken. If a player scores 50 points , and takes 40 shots ,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!