The most appropriate sample size is (B) 191.
We can use the formula for the required sample size for a proportion:
n = (zα/2)^2 * p(1 - p) / E^2
where zα/2 is the critical value for the desired level of confidence (98% corresponds to zα/2 = 2.33), p is the estimated proportion of people willing to donate their organs (unknown), and E is the desired margin of error (0.03).
To be conservative, we can use p = 0.5, which gives the largest possible value of n.
Plugging in the values, we get:
n = (2.33)^2 * 0.5(1 - 0.5) / 0.03^2 ≈ 191
Therefore, the most appropriate sample size is (B) 191.
To know more about proportion refer here:
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27 to the power of 0.5 times 3 to the power of -0.5
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
6 x 10^8 is how many times a large as 2 x 10^3
the answer should be 3 x 10⁵
Answer:
it is 300000 time large
Step-by-step explanation:
Hope this Helped
A local hamburger shop sold a combined total of 376 hamburger and cheeseburgers on Sunday. There were 74 fewer cheeseburgers sold than hamburgers. How many hamburgers were sold on Sunday?
Answer:
82
Step-by-step explanation:
let X = the number of hamburgers sold
let Y = the number of cheeseburgers sold a combined total of 328 were sold
so: X + Y = 328
cheeseburgers = 3 times the number of hamburgers sold
so: Y = 3X
substitute 3X into the equation for Y
X + 3X = 328
4X = 328
divide both sides by 4 to get the variable X by itself
X = 82
so: 82 hamburgers were sold Friday
Answer:
There were 225 hamburgers sold on Sunday.
Step-by-step explanation:
2h - 74 = 376
h = hamburgers
2h - 74 + 74 = 376 + 74
2h = 450
2h/2 = 450/2
h = 225
Check.
hamburgers + cheeseburgers = total number of burgers
225 + (225 - 74)
225 + 151 = 376
ax-by/c =d solve for x
Mark ordered gummy bears and caramels for his candy shop. He ordered a total of twenty five pounds of there ingredients. Gummy bears cost $5 per pound, and caramels cost $8 per pound. He spent a total of $140.
A. Write a system of equations that describes the situation. Define each variable you use.
B. Solve the system of equations from part A using the substitution or elimination method. Write your solution using a complete sentence. Is the solution reasonable? Why or why not?
Answer:
20 pounds of Gummyballs and 5 pounds of caramel was ordered
Step-by-step explanation:
Let :
Gummyball = a
Caramel = b
a + b = 25 - - - (1)
5a + 8b = 140 - - - (2)
From (1)
a = 25 - b
Put into (2)
5(25 - b) + 8b = 140
125 - 5b + 8b = 140
125 + 3b = 140
3b = 15
b = 5
From a = 25 - b
a = 25 - 5
a = 20
Hence,
20 pounds of Gummyballs and 5 pounds of caramel was ordered
hey guys can you help with this
Step-by-step explanation:
use the formula of area of triangle .
if B=X then h=8+x
Use the Proportionality Theorem to solve for X.
The proportion of 16 to 4 is 4 is 1/4 of 16( 4/16 = 1/4)
So x would be 1/4 of 12
12/4 = 3
X = 3
Answer:
Step-by-step explanation:
The proportion of 16 to 4 is 4 so 1/4 of 16( 4/16 = 1/4)
So x would be 1/4 of 12
12/4 = 3
X = 3
Jeanette wants to tile the floor of a room in her house. The square tiles measure 3/4 ft on each side. The room is 10 ft wide.
a. Write an inequality to describe how many tiles are needed to make one row of tiles across the width of the room.
b. Solve the inequality.
c. How many tiles should Jeanette buy to form one row?
A. [tex]\frac{3}{4}[/tex]t[tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 7[tex]\frac{1}{2}[/tex]
B. [tex]\frac{3}{4}[/tex]t [tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 13[tex]\frac{1}{3}[/tex]
C. [tex]\frac{3}{4}[/tex]+t[tex]\geq[/tex]10; t[tex]\geq[/tex]9[tex]\frac{1}{4}[/tex]; 10
D. [tex]\frac{3}{4}[/tex]t[tex]\geq[/tex]10; t[tex]\geq[/tex]13[tex]\frac{1}{3}[/tex]; 14
Answer:
D. 3/4>=10; t>=13 1/3; 14
Step-by-step explanation:
Solving the above inequality.....
So, Jeanette should buy 14 tiles to form one row.
Find the area of this triangle. Round to
the nearest tenth.
20 ft
9 ft
1100
15 ft
[? ]ft2
Enter
Answer:
63.3 square feet
Step-by-step explanation:
Let a = 20 ft, B = 15 ft, c = 9ft
[tex] s=\frac{a+b+c}{2} [/tex]
[tex] s=\frac{20+15+9}{2} [/tex]
[tex] s=\frac{44}{2} [/tex]
[tex] s=22\: ft[/tex]
[tex]Area \: of \:\triangle = \sqrt{s(s - a)(s - b)(s - c)} \\ \\ = \sqrt{22(22 - 20)(22 - 15)(22 - 9)} \\ \\= \sqrt{22 \times 2 \times 7 \times 13} \\ \\= \sqrt{44 \times 91} \\ \\ = \sqrt{4,004} \\ \\ = 63.2771681 \\ \\ \approx 63.3 \: {ft}^{2} [/tex]
Clancey and Ethan are starting new books. So far, Clancey has read 1/4 of his book, which has 240 total pages and Ethan read 2/3 of his book, which has 170 total pages. Who has read more pages so far,Clancey or Eathan. SHOw YOUR WORK
Answer:
Step-by-step explanation:
7. What is the area of the trapezoid shown? 4 cm 10 cm 8 cm W 10 cm
Answer:
88 ... .... . ... . . . ... ............... ....
Natilie invested $200 in a savings account that earned 4% simple interest each year. She invested for
two years without adding or taking money from her account.
A. How much INTEREST has she made? (I=PRT or Interest = Principal x Rate x Time
B. How much money does she have in total? Show work for both.
Mang Nathaniel is selling two kinds of vinegar. Silver duck is priced at Php
10 per bottle and Reyna Puti is priced at Php 15 per bottle. If he needs a
total sales of Php 600.00, how many bottles of Reyna Puti should he sell if
there were already 30 bottles of Silver duck sold?
Answer:
Reyna Puti sold = 20 bottles
Step-by-step explanation:
Silver duck = Php 10 per bottle
Reyna Puti = Php 15 per bottle
Silver duck sold = 30 bottles
Reyna Puti sold = x bottles
Total sales = Php 600.00
Total = cost of Silver duck * number sold + cost of Reyna Puti * number sold
600 = 10 * 30 + 15 * x
600 = 300 + 15x
600 - 300 = 15x
300 = 15x
x = 300/15
x = 20 bottles
Reyna Puti sold = 20 bottles
NEED HELP, can anyone help me please?
Answer:
Domain is (-4, 4)
Range is (-5,2)
Step-by-step explanation:
What is the vertex form of 3x^2+6x+10
Answer:
3x2+6x−10
y=3x2+6x−10
Rewrite the equation in vertex form.
y=3(x+1)2−13
Use the vertex form, y=a(x-h)2+k, to determine the values of a h, and k.a=3h=−1k=−13 (h,k).(−1,13)
Step-by-step explanation:
HELP I NEED HELP ASAP
A. 15%
B. 0.15%
C. 0.85%
D. 85%
Tell whether the table of values represents a linear or an exponential function.
x = -3,-2, -1,0, 1
y = 1,2,4,8, 16
The table represents
function.
The function is y=
Answer:
well if u think abut adding them or multyplying them then if u round all the numbers to the nearest 100s then u will get ur answer witch is 122 is ur answer
Step-by-step explanation:
Benjamin took a taxi from his house to the airport. The taxi company charged a pickup fee of $2.60 plus $3 per mile. The total fare was $74.60, not including the tip. How many miles was the taxi ride?
Answer:
74.60=3x+2.60
74.60-2.60=72
72/3=24
x=24
the taxi ride was 24 miles
Can yall help its due in 30 minutes
Answer:
$462.50
Step-by-step explanation:
:))
will give brainliest to correct answer
The answer is B
hope that helps
Please help pleaseeeeeeee
Answer:
it is 10.5 cm squared! I hope this helps
Reduce 21/24
What is the answer to this?
Answer:
7/8 or 0.875
Step-by-step explanation:
What is the square root of 10 plus 25 minus 5 times 20
Answer: √
10
−
75
Step-by-step explanation:
Answer:
463.245553
Step-by-step explanation:
3.16227766+25-5 times 20
HELP ASAPP! Practice 9.4 - 9.5
ONLY QUESTIONS 6,8,9 AND SHOW WORK PLEASE!!
Answer:
6.JMK=90-28
=62
STR=180-118
=62
(PROVEN)
This is my question it is kind of confusing but can you guys help me solve it thanks.
and the question is a screenshot.
Answer:
2.3h - 2.9d - 14
Step-by-step explanation:
6h - 3.7h - 7.9d + 5d - 14
= 2.3h - 2.9d - 14
3x+y=32+7x+2y=73 pls solve for x and y
Answer:
x=41/4 -y
y=41/4 -x
Step-by-step explanation:
The sum of a number and 9 is 21. Find the number.
Answer:
12
Step-by-step explanation:
The baker can make 28 cakes in 7 days.how many cakes can the baker make in 5 days
Answer:
20 cakes in 5 days...........
Answer:
The Baker can bake 20 cakes in five days.
Step-by-step explanation:
Firstly you divide 28 by seven to find how many cakes he baked in one day.The answer is 4.
Secondly to find how much he baked in 5 days u simply multiply 5×4=20
I hope this helps:)
Find the unknown angle
Answer:
A = 45°
Step-by-step explanation:
All angles in a triangle add up to 180°.
We know that one angle in the triangle is 90° (this is known because of the small square).
Hence:
A + A + 90° = 180°
Simplify
2A + 90° = 180°
Rearrange
2A = 180 - 90
2A = 90
Divide both sides by 2, so that A is by itself
A = 45°
help if you answer something not related to this I will report
Answer:
Complement of 50° = 40°
Supplement of 145° = 35°
Complement of 27° = 63°
Supplement of 50° = 130°
Step-by-step explanation:
Complementary angles add up to 90°
Supplementary angles add up to 180°
90° - 50° = 40°
180° - 145° = 35°
90° - 27° = 63°
180° - 50° = 130°
Answer:
Complement 50° = 40°
Supplement 145° = 35°
Complement 27° = 63°
Supplement 50° = 130°
Complement angles = adds up to 90°
Supplement angles = adds up to 180°
Brainly plz :))