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
sdas [7]
3 years ago
5

PLEASE HELP WILL GIVE BRAINLEST PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer:

i´ḿ confused

Step-by-step explanation:

VLD [36.1K]3 years ago
7 0

Step-by-step explanation: 29-8=21 so im guessing just subtract bc from Ac and that's your evidence maybe?

You might be interested in
3.5(x+2.2)^2+3.5(y-11.1)^2=21 what is the radius of the circle?
Alchen [17]
The radius of the circle would be 12
4 0
3 years ago
Somebody solve this plzz
mash [69]

Answer:

Not a function

Step-by-step explanation:

If you use the line/ pencil test ***I think that's what it's called...

you put a pencil flat on the graph and if it touches more than one point, it is not a function. This only works with some graphs.But it works with this one.  

8 0
3 years ago
I WILL MARK U AS A BRAINLIEST! Please help question on the picture.
tester [92]

Answer:

just wanted to let you know you didn't attach a picture would love to answer question in comments once I can see the photo

6 0
3 years ago
A prticular type of tennis racket comes in a midsize versionand an oversize version. sixty percent of all customers at acertain
svetlana [45]

Answer:

a) P(x≥6)=0.633

b) P(4≤x≤8)=0.8989 (one standard deviation from the mean).

c) P(x≤7)=0.8328

Step-by-step explanation:

a) We can model this a binomial experiment. The probability of success p is the proportion of customers that prefer the oversize version (p=0.60).

The number of trials is n=10, as they select 10 randomly customers.

We have to calculate the probability that at least 6 out of 10 prefer the oversize version.

This can be calculated using the binomial expression:

P(x\geq6)=\sum_{k=6}^{10}P(k)=P(6)+P(7)+P(8)+P(9)+P(10)\\\\\\P(x=6) = \binom{10}{6} p^{6}q^{4}=210*0.0467*0.0256=0.2508\\\\P(x=7) = \binom{10}{7} p^{7}q^{3}=120*0.028*0.064=0.215\\\\P(x=8) = \binom{10}{8} p^{8}q^{2}=45*0.0168*0.16=0.1209\\\\P(x=9) = \binom{10}{9} p^{9}q^{1}=10*0.0101*0.4=0.0403\\\\P(x=10) = \binom{10}{10} p^{10}q^{0}=1*0.006*1=0.006\\\\\\P(x\geq6)=0.2508+0.215+0.1209+0.0403+0.006=0.633

b) We first have to calculate the standard deviation from the mean of the binomial distribution. This is expressed as:

\sigma=\sqrt{np(1-p)}=\sqrt{10*0.6*0.4}=\sqrt{2.4}=1.55

The mean of this distribution is:

\mu=np=10*0.6=6

As this is a discrete distribution, we have to use integer values for the random variable. We will approximate both values for the bound of the interval.

LL=\mu-\sigma=6-1.55=4.45\approx4\\\\UL=\mu+\sigma=6+1.55=7.55\approx8

The probability of having between 4 and 8 customers choosing the oversize version is:

P(4\leq x\leq 8)=\sum_{k=4}^8P(k)=P(4)+P(5)+P(6)+P(7)+P(8)\\\\\\P(x=4) = \binom{10}{4} p^{4}q^{6}=210*0.1296*0.0041=0.1115\\\\P(x=5) = \binom{10}{5} p^{5}q^{5}=252*0.0778*0.0102=0.2007\\\\P(x=6) = \binom{10}{6} p^{6}q^{4}=210*0.0467*0.0256=0.2508\\\\P(x=7) = \binom{10}{7} p^{7}q^{3}=120*0.028*0.064=0.215\\\\P(x=8) = \binom{10}{8} p^{8}q^{2}=45*0.0168*0.16=0.1209\\\\\\P(4\leq x\leq 8)=0.1115+0.2007+0.2508+0.215+0.1209=0.8989

c. The probability that all of the next ten customers who want this racket can get the version they want from current stock means that at most 7 customers pick the oversize version.

Then, we have to calculate P(x≤7). We will, for simplicity, calculate this probability substracting P(x>7) from 1.

P(x\leq7)=1-\sum_{k=8}^{10}P(k)=1-(P(8)+P(9)+P(10))\\\\\\P(x=8) = \binom{10}{8} p^{8}q^{2}=45*0.0168*0.16=0.1209\\\\P(x=9) = \binom{10}{9} p^{9}q^{1}=10*0.0101*0.4=0.0403\\\\P(x=10) = \binom{10}{10} p^{10}q^{0}=1*0.006*1=0.006\\\\\\P(x\leq 7)=1-(0.1209+0.0403+0.006)=1-0.1672=0.8328

7 0
3 years ago
Chen has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Chen's Jumble has 4 clas
pochemuha
About 10 songs because if you add up all ten numbers of all the songs then you divide, then you divide again you will get 10 songs
6 0
3 years ago
Other questions:
  • In the circle shown below, ∠BAC is a central angle, and r is the length of AB.
    5·1 answer
  • Convert to mixed number 4/5
    5·1 answer
  • 6 <br> 1<br> 3<br> • 6 <br> 1<br> 4<br> = 6 <br> x<br> y
    15·2 answers
  • Solve the quadratic equation by completing the square. 6x2 + 4x - 5 = 0
    13·1 answer
  • Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}-10x-4y=0\\\
    6·2 answers
  • Leon rides his bike 6 kilometers each day. How far does he ride in 34 days?
    8·2 answers
  • Akio buys scissors for $3.79, tape for $2.57, and pens for $5.80. The sales tax is 6.25%.
    6·2 answers
  • 5) The Barnett triplets went to the school carnival. Henry rode on 5 rides, bought 2 drinks, 1 bag of popcorn and
    11·1 answer
  • Each Saturday morning, Janie works 5 hours and earns $35.75. How much does Janie earn for each hour she works?
    15·2 answers
  • If a coin is tossed, a die is rolled, and a candy is taken from
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!