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
Bad White [126]
2 years ago
9

All possible 3-digit numbers made with only the digits 1 and 2 are written on separate pieces of paper. Without looking, Liam ta

kes one piece. What is the probability that the number on the paper will use just one digit?
Mathematics
1 answer:
Sholpan [36]2 years ago
6 0
To find the probability you need to know the number of desired outcomes (i.e. one digit only used) and the total number of outcomes.

In this case there are 3 desired outcomes - 111, 222, 333.

Since any of the 3 positions in the 3-digit number can be any of 3 numbers, there are 3 x 3 x 3 = 27 total possible outcomes.

The probability of having a desired outcome is 3 / 27 = 1 / 9 = 11.1%
You might be interested in
To get into shape, Miles ran for 1 minute on Monday, 3 minutes on Tuesday, 6 minutes on Wednesday, and 10 minutes on Thursday. I
Ivahew [28]

Answer: 40 mins

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Helppppppppppppp. a and b partttt​
PilotLPTM [1.2K]

Answer:

a) 220.17 cm

b) 2127.12 cm²

Step-by-step explanation:

perimeter = circumference

it is the sum of the inner and the outer arc and the 2 side lines of 25.

we know a full circle has 360 degrees. but we only look at a segment of a circle of 150 out of the total of 360 degrees.

the circumference of a circle is

C = 2×pi×r

the 150 degree part is then

C = 2×pi×r×150/360 = 2×pi×r×15/36 = pi×r×15/18 =

= pi×r×5/6

the radius of the inner circle is 20.

=>

Ci = pi×20×5/6 = pi×50/3

the radius of the outer circle is 20 + 25 = 45

Co = pi×45×5/6 = pi×75/2

so, the total perimeter/ circumference is

C = Ci + Co + 25 + 25 = pi×50/3 + pi×75/2 + 50

= pi×100/6 + pi×225/6 + 50 = pi×325/6 + 50 =

= 220.17 cm

the area of the shaded shape is the area of the large circle segment minus the area of the small circle segment.

the area of a circle is

A = pi×r²

the 150 degree part is then

A = pi×r²×150/360 = pi×r²×5/12

so, for the inner circle that is

Ai = pi×20²×5/12 = pi×400×5/12 = pi×100×5/3 = pi×500/3

for the outer circle that is

Ao = pi×45²×5/12 = pi×2025×5/12 = pi×10125/12 =

= pi×3375/4

so, the total area of the shaded shape is

A = Ao - Ai = pi×3375/4 - pi×500/3 = pi×(10125-2000)/12 =

= pi×8125/12 = 2127.12 cm²

4 0
2 years ago
What is the answer to 3p-2=-29
tatuchka [14]

3p-2=-29

Add 2 to both sides

3p= -27

Divide 3 on both sides

Final Answer: p= -9

3 0
3 years ago
Read 2 more answers
Which pair of numbers has a GCF of 3? Group of answer choices (A) 3 and 18 (B) 8 and 24 (C)12 and 18 (D) 1 and 3
Arte-miy333 [17]

Answer:

A, B and C

Step-by-step explanation:

A) 3 and 18 = has 3 as factor

B) 8 and 24 = has 3 as factor

C) 12 and 18 = has 3 as factor

D) 1 and 3 = has as factor of 1 and 3

so the answer is A, B and C

5 0
3 years ago
Given f(x)=½(8-2x), what is the value of f(-5)? help plez
guajiro [1.7K]

Answer:

9

Step-by-step explanation:

f(x)=½(8-2x)

Let x = -5

f(-5)=½(8-2* (-5))

     =½(8+10)

     =½(18)

     =9

8 0
2 years ago
Read 2 more answers
Other questions:
  • Help with this math question please
    14·1 answer
  • Which decimal is greater than 7.26 and less than 7.27 ?
    14·2 answers
  • What is the value of x?<br><br> Enter your answer in the box<br><br> (Please hurry)
    8·1 answer
  • The front tent is 8 feet and 5 feet tall what is the part of the tent
    11·1 answer
  • If f(x) = x4 + 3x3 – x2 + 6, find f(-3).<br><br> A) -3 <br> B) -2 <br> C) 2 <br> D) 3
    5·1 answer
  • Can someone plz help in part a b c thank u somuvhhhhh
    11·2 answers
  • Help me solve this equation!!<br><br> 5x + 3x = ? when x = 5
    8·2 answers
  • Determine the x-intercept of the line whose equation is given:
    12·2 answers
  • Eric bought two jars of peppers and six jars of pickles for $49. Andrew bought three jars of peppers and 5 jars of pickles for $
    7·1 answer
  • Please help asap will mark brainliest for correct awnser
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!