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
dangina [55]
3 years ago
8

In how many ways can 12 one-dollar coins be shared between Josh, Frank, and Suzy if each of them receives at least 3 coins?

Mathematics
1 answer:
Nostrana [21]3 years ago
8 0
You would use the counting principal. 12X3X3
You might be interested in
Construct an Argument:<br> Which is greater, 40 x 1/4 or 40 divided by 1/4? EXPLAIN.
Pani-rosa [81]

Answer:

40 × 1/4

Step-by-step explanation:

That is greater because 40 is being multiplied.

7 0
2 years ago
Read 2 more answers
Angles question please help math
Natali [406]
The answer should be 62 °
180°-118°=62°
Subtract 118° from 180° because a parallel line is 180°. So you just have to find the other side of the line.
Hope this helps.
3 0
3 years ago
Wet N' Dry camp provides water-based activities and ground sports activities for a
wolverine [178]

Answer:

  1. x+y≤80; x≥8; y≥5
  2. see attached for a graph
  3. Twenty campers are doing water-based activities and 40 campers are doing ground-based activities.

Step-by-step explanation:

1. Let x and y represent the numbers of campers doing water- and ground-based activities, respectively.

  x + y ≤ 80 . . . . . . a maximum of 80 campers can be accommodated

  x ≥ 8 . . . . . . . . . . a minimum of 8 campers should be water-based

  y ≥ 5 . . . . . . . . . . a minimum of 5 campers should be ground-based

__

2. See the attachment for a graph. Possible outcomes are shaded red. The boundary lines of the shaded area are included in the possible outcomes.

__

3. Twenty campers are doing water-based activities and 40 campers are doing ground-based activities.

5 0
3 years ago
99 POINTS- multi question-only answer if your positive-
Otrada [13]
What exactly are you looking for? Do you want the answer to all of them?
4 0
3 years ago
Read 2 more answers
In a random sample of males, it was found that 28 write with their left hands and 210 do not. In a random sample of females, it
Drupady [299]

Answer:

a) Null hypothesis:p_{M} \geq p_{W}  

Alternative hypothesis:p_{M} < p_{W}  

b) z=\frac{0.118-0.125}{\sqrt{0.122(1-0.122)(\frac{1}{238}+\frac{1}{497})}}=-0.271    

c)p_v =P(Z   

d) If we compare the p value and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the proportion of men that write with their left hand is NOT significant lower than the proportion of female that write with their left hand

Step-by-step explanation:

1) Data given and notation  

X_{M}=28 represent the number of men that write with their left hand

X_{W}=62 represent the number of women  that write with their left hand

n_{M}=210+28=238 sample of male selected

n_{W}=62+435=497 sample of female selected

p_{M}=\frac{28}{238}=0.118 represent the proportion of men  that write with their left hand

p_{W}=\frac{62}{497}=0.125 represent the proportion of women that write with their left hand

\alpha=0.05 represent the significance level

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the rate of left-handedness among males is less than that among females , the system of hypothesis would be:  

Null hypothesis:p_{M} \geq p_{W}  

Alternative hypothesis:p_{M} < p_{W}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{M}-p_{W}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{M}}+\frac{1}{n_{W}})}}   (1)

Where \hat p=\frac{X_{M}+X_{W}}{n_{M}+n_{W}}=\frac{28+62}{238+497}=0.122

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.118-0.125}{\sqrt{0.122(1-0.122)(\frac{1}{238}+\frac{1}{497})}}=-0.271  

4) Statistical decision

We have a significance level provided \alpha=0.05, and now we can calculate the p value for this test.  

Since is a one left side test the p value would be:  

p_v =P(Z  

If we compare the p value and the significance level given \alpha=0.05, 0,1,0.15 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the the proportion of men that write with their left hand is NOT significant loer than the proportion of female that write with their left hand .  

6 0
3 years ago
Other questions:
  • Part C plz. Help with area!
    14·1 answer
  • What is the correct value of f(-10) if f(x) = 6x2 – 5x
    15·1 answer
  • What is the third angle of a right triangle if one of the angles measures 51.1
    9·1 answer
  • A home builder wants to decorate the post at the bottom of a stairway. One way to do this is to glue a square-based pyramid to t
    9·1 answer
  • 0645 + 0745 answer in military time
    14·1 answer
  • HELP PLEASE 10 POINTS
    14·2 answers
  • What are the coordinates of point A′ if triangle ABC is rotated 90° to produce the image triangle A′B′C′?
    10·1 answer
  • A chocolate company selects 1200 random packages to check their weight it finds that 30 packages have an incorrect weight. how m
    12·1 answer
  • Explain why the measure of angle a is equal to 45∘ and the measure of angle c is equal to 70∘ .
    13·1 answer
  • According to a poll, 56% of voters support funding a new community center. A surveyor randomly selects 75 voters and asks each v
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!