Answer:
A) M = 3.016
B) M = 9.79
C) 62
Step-by-step explanation:
A) We are given;
Population size; n = 100
standard deviation; σ = 12
Formula for the margins of error is;
M = z × σ/√n
At 99% confidence interval, z = 2.58
Thus;
M = 2.58 × 12/√100
M = 3.016
B) n is now equal to 10, thus at same confidence interval used in option A, we have;
M = 2.58 × 12/√10
M = 9.79
C) to solve this, we will use the formula;
n ≥ (zσ/m)²
Where;
z at 95% confidence interval has a value of 1.96
m is the margin of error = 3
Thus;
n ≥ (1.96 × 12/3)²
n ≥ 61.4656
Thus,approximately n = 62
304 students went on a field trip. Seven buses were filled, and 17 students traveled in cars. How many students were in each bus?
Consider the steps to convert 49% to a decimal.
The decimal point will move
places.
The decimal point will move to the
.
49% written as a decimal is
.
9514 1404 393
Answer:
2 placesto the left0.49Step-by-step explanation:
It can be useful to consider the percent symbol (%) as a shorthand way to write /100. That is, where you see %, /100 is completely equivalent.
49% = 49/100
If you recognize that 1/100 (one hundredth) is 0.01 in decimal (one hundredth), then you can see that 49/100 = 49×0.01 = 0.49.
__
A lot of folks consider the % symbol to be separate from the number, just as units of degrees or hours or inches might be. So, they tell you to do the conversion by moving the decimal point on the % value 2 places to the left (and drop the % symbol):
49% = 49.% = .49
_____
Additional comment
As you can tell, I think of the % symbol as part of the number 49%, just as /100 is part of the number 49/100. Forty-nine hundredths can be written as any of 49/100 or 0.49 or 49%.
Answer:
2 places
to the left
0.49
Step-by-step explanation:
For a science class, Sweet T counts clusters of bacteria growing in two Petri dishes. He records his findings as a linear function of time. Which statement is true?
Answer:
dish A has a greater rate of change
Step-by-step explanation:
Answer:
Dish A has a greater rate of change
Step-by-step explanation:
If:
BC= 4x + 2,
AB = 8x + 8, and
AC = 22,
Find BC.
Answer:
BC = 6.8
Step-by-step explanation:
The distance from A to B, then from B to C, is the same distance as from A to C.
Thus,
AB + BC = AC
AB = 8x + 8
BC = 4x + 2
AC = 22
AB + BC = AC
(8x + 8) + (4x + 2) = 22
Expanding the parenthesis:
8x + 8 + 4x + 2 = 22
8x + 4x + 8 + 2 = 22
12x + 12 = 22
Subtracting 12 from both sides:
12x = 10
Dividing both sides by 12:
x = 10/12 = 1.2
x = 1.2
We're looking for BC. As we know,
BC = 4x + 2
Let's now put in x = 1.2 into this equation:
BC = 4x + 2
BC = 4 * 1.2 + 2
Since 4 * 1.2 is 4.8:
BC = 4.8 + 2
BC = 6.8
Answer: BC = 6.8
18r-4r=28 solve for r
Answer:
r=2
Step-by-step explanation:
18r-4r=14r
14r=28
r=2
Answer:
R=2
Step-by-step explanation:
18r-4r=14r
14r=28
r=2
Answer for 100 points! Also check the picture in full screen!
Answer:
A
Step-by-step explanation:
The answrr is A I think I need points
Mr. Joaquin had $71.25 in his bank account, but then
he bought some new ties and pants. After the purchase,
he was in debt $25.20. What was the change in Mr.
Joaquin's account balance due to the purchases?
A.$46.05
B.$-46.05
C.$96.45
D.$-96.45
Answer:
A.46.05(subtract from the bank account)
si quema o no quema cuh
Answer:
Si quema cuhh
Step-by-step explanation:
Rewrite x - 3y = 6 in slope-intercept form.
А
X= 3y +6
В
y=x - 2
С
у = 3х -6
D
Зу = 6-х
Answer:
use formula y=mx+c
[tex]x - 3y = 6 \\ x - 6 = 3y \\ x - \frac{6}{3} = y \\ x - 2 = y \\ y = x - 2[/tex]
so the answer is B
MULTIPLE CHOICE QUESTION
The area of a rectangular picture frame is 93.5 square inches. The area formula for a rectangle is A = lw. Write and solve an equation to find the width, w, of the picture frame.
Answer:
w = 8.5
Hope it helps!:)
Answer:
93.5
Step-by-step explanation:
There are 90 dogs and 150 cats at an animal shelter. Of these animals, 9 dogs and 27 cats receive medication daily. What percentage of the animals in the shelter receive medication daily?
Answer:
15%
Step-by-step explanation:
Hope this helps! :3
500 POINTS PLEASE HELP ME I WILL GIVE ALL POINTS PLEASE PLEASE HELP ME ASAP
Answer:
its only says you will give 14 point so not ancering hahaha loser
Step-by-step explanation:
Answer:-_-
Step-by-step explanation:
A $890 computer loses value at a rate of about $25 per month. Equation Y equals 890-25X represents the value of the computer after X months. Identify and interpret the x and y intercepts. Explain how you can use the intercepts to help you graph the equation
Answer:
x-int. (35.6, 0)
represents number of
yrs before computer has
no value; y-int. (0, 890)
represents initial value;
Plot intercepts, draw
line through them.
Step-by-step explanation:
A triangle has sides with lengths of 6
centimeters, 11 centimeters, and 13
centimeters. Is it a right triangle? How
do you know?
Plss help
Answer:
no
Step-by-step explanation:
6^2 + 11^2 = 36 + 121 = 157
13^2 = 169
those are not equal so it is not a right triangle
through: (1, -3), slope = -4
A) y=-x+4 B) y = x +4
C) y = 4x + 1 D) y=-4x + 1
Answer:
D) y = -4x + 1
Pipers Pizza shop used 18% more cheese this month than last month, due to having a discount on the extra chesse toppings. If the pizza shop used 150 pounds of cheese last month how much did it use this month
Answer:
177 pounds
Step-by-step explanation:
Create an equation to represent the system.
Since it's 18% more than what was used last month an equation can be written such as the one below:
(118%)( last month's cheese ) = this month's cheese
Convert the percentages into decimals by moving the decimal place at the end of 118.00 two places to the left
118% = 1.18
( 1.18 )( last month's cheese ) = this month's cheese
Next, plug in the number for last month's cheese
( 1.18 )( 150 pounds) =
177 pounds
please help asap!!!!!
Answer:
36 units
Step-by-step explanation:
What is the area of this shape
Answer:
108 units^2
Step-by-step explanation:
(1+8)/2 = 4.5 and 4.5*24=108
Dante's family has completed 40% of a trip. They have traveled 25 miles. how far is the entire trip?
Answer: The entire trip is 62.5 miles
Step-by-step explanation:
25 miles = 0.4x
Divide both sides by 0.4
25/0.4 = 62.5 miles
What is the constant of proportionality for the relationship shown in this table?
I need your help
x 1 2 3 4
y 4 8 12 16
14
4
8
16
PLEASE
Answer:
2
Step-by-step explanation:
help me pls with these 2 find the slope with the graph
Answer:
Remember that the best way to remember is that when it’s a straight line, it can be able to form into zero. As for the ones below, they can form to be the letter u which can then be interpreted as undefined. There is the demonstration down below.
Step-by-step explanation:
did i get this right? if not could you tell me what it is.
Find the slope of the line that goes through the given points.
(9,6) and (6, -3)
Answer:
3Step-by-step explanation:
Slope of a line is expressed as;
m = y2-y1/x2-x1
m = -3-6/6-9
m = -9/-3
m = 3
Hence the slope of the line passing through the points is 3
If I already owe you 5 apples and now I owe you 10 more apples, how many apples do I owe you now?
Answer:
15 apples
Step-by-step explanation:
It's kinda obvious ;-;
Answer: 15 because it + so 5 + 10 = 15
Step-by-step explanation:
five years ago ,a father was four times as old as his son.In five years time the father will be twice as old as the son.If x and y are the present ages of the father and the son respectively,the equation relating x and y are:
Please I need an explanation
The options are
A: 4y-x=0;x-2y=0
B: 4y-x=15;x-2y=5
C: 4y-x=25;x-2y=5
D: x-4y=15;y-2x=5
HELPPPPPPPPPP MEEEEEE
Answer:
D. x ≥ -10
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
10 - 4x ≤ 50
Step 2: Solve for x
Subtract 10 on both sides: -4x ≤ 40Divide -4 on both sides: x ≥ -10Here we see that any value x greater than or equal to -10 would be a solution to the inequality.
Members of a lacrosse team raised $1396.75 to go to a tournament. They rented a bus for $850.50 and budgeted $28.75 per player for meals. Determine the number of players the team can bring to the tournament.
Answer:
19 players
Step-by-step explanation:
If the team raises $1396.75 and the bus costed $850.50 then the remaining budget is = 546.75
If each meal is $28.75 then you could buy 19 meals for 19 players to take to the tournament.
What is the volume of the rectangular prism?
Step-by-step explanation:
The volume of a rectangular prism is the measure of the space the fills it. A rectangular prism is a 3-dimensional object with six rectangular faces. A rectangular prism is also referred to as a cuboid, rectangular hexahedron, right rectangular prism or a rectangular parallelepiped.Its formula is V=W×H×L.
Write inequalities to represent the situations below.
The distance to the nearest exit door is at most 150 feet.
Use d to represent the distance (in feet) to the nearest exit door.
Answer:
d ≤ 150
Step-by-step explanation:
D is less than or equal to 150 meaning that it can be l3ess or 150 but it cant be more. Hope it helped.
Solve for x.
x-1 is in exponential form
2^x-1 = 31
