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
soldi70 [24.7K]
2 years ago
6

HELP!! 13 POINTS OFFERED

Mathematics
2 answers:
mote1985 [20]2 years ago
8 0

Answer:

Alternate Interior Angles

Step-by-step explanation:

Anna [14]2 years ago
6 0

Answer:

I believe its a vertical angle

Step-by-step explanation:

You might be interested in
(5) in simplist fraction form
MrRissso [65]
What?
(5) in simplest fraction form is 5/1.
7 0
3 years ago
Read 2 more answers
Please help. I suck at this
Alex

Answer:

Step-by-step explanation:

Total no. Of books read =10+7+5+2

= 24

Ratio of mystery books to the total books read = 10:24 = 5:12

7 0
3 years ago
We learned in Exercise 4.18 that about 90% of American adults had chickenpox before adulthood. We now consider a random sample o
liraira [26]

Answer:

a) 108 people with a standard deviation of 3.286335

b) No

c) 0.218163 or around 21.82%

d) See explanation below.

Step-by-step explanation:

This situation can be modeled with the Binomial Distribution which gives t<em>he probability of an event that occurs exactly k times out of n, and is given by </em>

<em>\large P(k;n)=\binom{n}{k}p^kq^{n-k} </em>

<em>where  </em>

<em>\large \binom{n}{k}= combination of n elements taken k at a time. </em>

<em>p = probability that the event (“success”) occurs once </em>

<em>q = 1-p </em>

In this case, the event “success” is finding an American adult who had  chickenpox before adulthood with probability p=0.9

and n=120 American adults in the sample.

The <em>standard deviation for this binomial distribution</em> is

\large s=\sqrt{npq}

where <em>n is the sample size 120 </em>

a)

We consider a random sample of 120 American adults. How many people in this sample would you expect to have had chickenpox in their childhood?

If about 90% of American adults had chickenpox before adulthood, we expect to find 90% of 120 = 0.9*120=108 people in the sample who had chickenpox in their childhood.

The  standard deviation would be

\large s=\sqrt{120*0.9*0.1=3.286335}

b)

Would you be surprised if there were 105 people who have had chickenpox in their childhood?

No, because 105 and 108 are in the interval [mean - s, mean +s]

c)

What is the probability that 105 or fewer people in this sample have had chickenpox in their childhood?

The probability that 105 or fewer people in this sample have had chickenpox in their childhood is

\large \sum_{k=0}^{105}\binom{120}{k}0.9^k0.1^{120-k}

We compute this value easily with a spreadsheet and we get

\large \sum_{k=0}^{105}\binom{120}{k}0.9^k0.1^{120-k}=0.218163\approx 21.82\%

d)

How does this probability relate to your answer to part (b)?

A binomial distribution with np>5 and nq>5 with n the sample size as is the case here, behaves pretty much like a Normal distribution with mean np and standard deviation \large \sqrt{npq}, so around 60% of the data are in the interval  [mean -s, mean +s] and 40% outside, so roughly <em>20% of the data should be in [0, mean-s] </em>

4 0
3 years ago
At the Tucson Zoo, Jason spends $6.00 to enter the zoo and $2.00 per animal to feed them. Meanwhile, at the Phoenix Zoo, Kim spe
shtirl [24]

Answer:

3 animals

Step-by-step explanation:

  1. combine like terms
  • 6 + 2x = 15 + x
  • -6   +  x   - 6  - x

     --------------------------

         3x = 9

     2. divide both sides by 3

  • 3x/ 3 = 9/3
  • x = 3        
8 0
3 years ago
Help me fasssssst huryyyy up
GenaCL600 [577]

Answer: 20%

1/(1+4) = the answer

its just the amount of lemon juice over total volume

4 0
2 years ago
Other questions:
  • Pls translate the verbal phrase into an algebraic expression
    7·1 answer
  • 56 men can do a work in 42 days then how many men will do the same work in 14 days ​
    12·2 answers
  • Mike correctly found the slope and y intercept of the line passing through the points(-5,-2)and (3,14)as follows.​
    7·2 answers
  • What is the graph of the equation 4x – 5y = 15? A. B. C. D.
    14·1 answer
  • 6n-7=-(8n+7) what is the work and answer
    5·1 answer
  • I need help on this question plz
    6·1 answer
  • And these..............
    7·1 answer
  • Question in picture solve
    8·2 answers
  • Please help me with this. I really don't get this lesson
    6·1 answer
  • your hourly wage is $9.30 per hour plus $0.80 for each unit you produce. how many units must you produce in 1 hour so that your
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!