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
OLEGan [10]
2 years ago
12

HELP, ASAP PLS. 24 POINTS.

Mathematics
1 answer:
Afina-wow [57]2 years ago
8 0
Oh my......um you should get tutoring for that im not that smart
You might be interested in
A Gallup survey of 2322 adults (at least 18 years old) in the U.S. found that 408 of them have donated blood in the past two yea
Lelu [443]

Answer: aA 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years = (0.163,0.189)

Step-by-step explanation:

Let p = population proportion of adults in the U.S. who have donated blood in the past two years.

Given: A Gallup survey of 2322 adults (at least 18 years old) in the U.S. found that 408 of them have donated blood in the past two years.

Sample size: n= 2322

Sample proportion q=\dfrac{408}{2322}=0.176

Critical z-value for 90% confidence level : z*=1.645

The confidence interval for population proportion:

q\pm z^*(\sqrt{\dfrac{q(1-q)}{n}})

A 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years:

0.176\pm (1.645)(\sqrt{\dfrac{0.176(1-0.176)}{2322}})\\\\=0.176\pm (1.645)(0.0079)\\\\=(0.176\pm0.013)\\\\=(0.176-0.013,0.176+0.013))\\\\=(0.163,0.189)

Hence,

6 0
3 years ago
Which of these is true and why
LuckyWell [14K]

Answer:

Step-by-step explanation:

True statements

All equallateral triangles are similar. Their sides are all in the same ratio when comparred.

All squares are similar. Same reason as equilateral triangles. All sides to both squares compared are the same.

False Statements

Isosceles triangles can and usually do have different base angles.

rectangles can have all sorts or side lengths. The only requirement is consecutive sides form right angles.

2 rhombuses can have side lengths that are in the same ratio, but the heights are not in the same ratio. That eleminates.

Answer

These are the only true ones: Statements 2 and 5 are true. The rest are not.

7 0
1 year ago
Mrs. Jackson earned a 500 bonus for signing a one-year contract to work as a nurse. Her salary is 22 per hour. If her first week
jekas [21]
Ok so your first step is to make this an equation
she gets paid x amount per hour and she works for 22 hours
so 22x plus her bonus
22x + 500 =1204
so now solve the equation
subtract both sides by 500
22x +500 =1204
-500 = -500
to get
22x = 704
now divide both sides by 22
x = 32
mrs jackson worked 32 hours to get her pay check
7 0
2 years ago
10 1/8 + (3 5/8 + 2 7/8)
erik [133]
If you're trying to simplify, 3 5/8+ 2 7/8 = 6 4/8. So 10 1/8 + 6 4/8 is 16 5/8
3 0
2 years ago
Read 2 more answers
Martin wants to buy 4 plastic figures that cost $17 each. How much money does he need to save to purchase the figure?
Nat2105 [25]
1 figure = $17 so you multiply 4 and 17 to get 68 
Martin will need to save $68
3 0
2 years ago
Read 2 more answers
Other questions:
  • Black Diamond Ski Resort charges $25 for ski rental and $10 an hour to ski. Bunny hill ski resort charges $50 for ski rental and
    6·1 answer
  • Which of these is the quadratic parent function?
    5·2 answers
  • I need help with this problem
    15·1 answer
  • Taylin buys 5 ounces of tea leaves for $2.35. At this rate,how much money does she need to buy 12 ounces of tea leaves?​
    13·2 answers
  • F(x) = x<br> g(x) = 1<br> What is the domain of<br> (g/f)(x)
    7·1 answer
  • Multiply (3p+4q) by (3m+2n).​
    8·1 answer
  • Jordan’s father is three times as old as Jordan. The sum of their age combined is 48. How old is Jordan?
    15·2 answers
  • Find the common difference of the arithmetic sequence shown. 1/4.3/8,1/2
    11·1 answer
  • Evaluate.<br><br> 7+22⋅6+23−6<br><br><br> 31<br><br> 33<br><br> 68<br><br> I don't know.
    10·2 answers
  • Someone please help!! Its due soonn!! &lt;3
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!