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
ELEN [110]
2 years ago
9

Brainliest if it is right

Mathematics
2 answers:
viktelen [127]2 years ago
7 0
157cm would be the answer to this
stepladder [879]2 years ago
3 0

Answer:  157 cm²

Step-by-step explanation:

A semicircle whose diameter is 20 cm will have an area of 157 cm²

You might be interested in
I need an equation that equals -5
RoseWind [281]
-4 - 1 = -5 can be an equation that equals -5.
8 0
3 years ago
Read 2 more answers
Bill is building a model of a square pyramid for a class project. The side length of the square base is 10 inches and the slant
Zolol [24]
The surface area for the square pyramid is A= 416.23
6 0
3 years ago
Read 2 more answers
The MoviePlex theater sold 1,456 tickets. The theater sold 6 times as many regular price tickets as it sold discount tickets. Ma
Lady bird [3.3K]

Jonah is the one that is correct because 1/6th of 1248 is 208. Then you add 1248 and 208 which is 1456 which is the correct answers

5 0
3 years ago
There are 4 people at a party. Consider the random variable X=’number of people having the same birthday ’ (match only month, N=
yulyashka [42]

Answer:

S = {0,2,3,4}

P(X=0) = 0.573 , P(X=2) = 0.401 , P(x=3) = 0.025, P(X=4) = 0.001

Mean = 0.879

Standard Deviation = 1.033

Step-by-step explanation:

Let the number of people having same birth month be = x

The number of ways of distributing the birthdays of the 4 men = (12*12*12*12)

The number of ways of distributing their birthdays = 12⁴

The sample space, S = { 0,2,3,4} (since 1 person cannot share birthday with himself)

P(X = 0) = \frac{12P4}{12^{4} }

P(X=0) = 0.573

P(X=2) = P(2 months are common) P(1 month is common, 1 month is not common)

P(X=2) = \frac{3C2 * 12P2}{12^{4} } + \frac{4C2 * 12P3}{12^{4} }

P(X=2) = 0.401

P(X=3) = \frac{4C3 * 12P2}{12^{4} }

P(x=3) = 0.025

P(X=4) = \frac{12}{12^{4} }

P(X=4) = 0.001

Mean, \mu = \sum xP(x)

\mu = (0*0.573) + (2*0.401) + (3*0.025) + (4*0.001)\\\mu = 0.879

Standard deviation, SD = \sqrt{\sum x^{2} P(x) - \mu^{2}}  \\SD =\sqrt{ [ (0^{2} * 0.573) + (2^{2}  * 0.401) + (3^{2} * 0.025) + (4^{2} * 0.001)] - 0.879^{2}}

SD = 1.033

4 0
3 years ago
9 is what percent of 45? Use the table to find the percent
DedPeter [7]
20% because 9 divided by 45 is 0.2 which is 20%
3 0
3 years ago
Other questions:
  • 2−2n=3n+17 whats the solution
    8·1 answer
  • Can someone please help me??
    14·1 answer
  • Pls help being timed
    10·1 answer
  • Find the geometric mean of 242 and 8. Question 12 options: 44 49 1872 54<br>edit: its 44.
    14·1 answer
  • A foundry produces circular utility access hatches​ (manhole covers). If 16 covers are produced in an 8minushour ​shift, the pro
    10·1 answer
  • I want yo nkow how to simplify
    8·1 answer
  • Rex weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?
    5·1 answer
  • I need help with this question.
    6·2 answers
  • Evaluate p+(n-1) x3 for n=7 and p=9
    5·1 answer
  • How to answer this problem
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!