Answer:
144
Step-by-step explanation:
From information available
Margin of error = 4
S = 18.61
ME = Z-alpha/2 x s/√n
Alpha = 1-0.99
= 0.01
Alpha/2 = 0.01/2
= 0.005
Z-alpha/2 =2.576
Putting into the formula we have
4/1 = 2.576 x 18.61/√n
When we cross multiply
We have
√n = (2.576 x 18.61)/4
√n = 11.98484
n = 11.98484²
n = 143.63
n = 144
144 subjects are needed to do this estimation
Зу + 5 < 10
Solve the inequality
Answer:
the answer is y < 5/3
Step-by-step explanation:
3y < 5
y < 5/3
Helpppppp meeee if you know precal
Step-by-step explanation:
LHS= csc^2 θ . tan^2 θ - 1
= (1/Sin^2 θ). (Sin^2 θ / cos^2 θ) - 1
= 1/cos^2 θ - 1
= (1 - cos^2 θ) / cos^2 θ
= sin^2 θ / cos^2 θ
= tan^2 θ
= RHS
Hence proved
You have a 2-pound carton of blueberries. You eat 0.2 of the carton on Monday and 0.35 of the carton on Tuesday. How many pounds of blueberries are left?
0.9 pounds of blueberries are left.
Percentage:
The Latin word "per centum," which meaning "by the hundred," was the source of the English word "percentage." Fractions with a denominator of 100 are called percentages. In other words, it is a relationship where the value of the entire is always assumed to be 100.
What is percentages ?
A percentage is a ratio or fraction where the full value is always 100. Sam, for instance, would have received 30 out of a possible 100 points if he had received 30% on his arithmetic test. In ratio form, it is expressed as 30:100 and in fraction form as 30/100.
Calculation of Percentage:
Finding the percentage of a whole in terms of 100 is what percentage calculation refers to. A percentage can be found in one of two ways:
By using the unitary method.
By changing the denominator of the fraction to 100.
It should be noted that when the denominator is not a factor of 100, the second technique of percentage calculation is not applied. In these situations, we employ the unitary technique.
Based on the given conditions, formulate: 2 x (1- 0.35- 0.2)
Calculate the sum or difference: 2 x ( 0.65 - 0.2)
Calculate the sum or difference: 2 x 0.45
Calculate the product or quotient: 0.9
Learn more about the percentage here:
https://brainly.com/question/24304697
#SPJ2
f(n)=3n-7 find n if n=-4 and n=14
Answer:
f(n)=-19,35
Step-by-step explanation:
lmk if u need one
Zarika earns the same amount each week by walking her neighbor's dogs. When she started this job, she had $300 in her savings account.
The table shows Zarika's savings account balance for her first month of work.
Week 0 1 2 3 4
Balance $300 $550 $800 $1050 $1300
Let x represent the number of weeks Zarika has been working and let y represent Zarika's account balance.
Which equation, expressed in Slope-Intercept Form, represents the amount of money in Zarika's bank account over time?
y=250x+300
y=300x+250
y=300x−250
y=250x−300
Answer:
y=250x+300
Step-by-step explanation:
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
The amount of money in Zarika's bank account over time after x weeks is represented by the equation.
y = 250x + 300
Option A is the correct answer.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 4 is an equation.
We have,
Amount earned each week = same.
Amount in her account = $300.
Number of weeks = x
Amount in the account = y
The equation represents the account balance after x weeks.
Total amount = $300 + Amount earned per week
This can be written as,
y = 250x + 300
Thus,
The amount of money in Zarika's bank account over time after x weeks is represented by the equation.
y = 250x + 300
Option A is the correct answer.
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ2
PLEASE HELP! QUESTION: The area of a room has a length which is 3 feet less than twice its width. Write a function that represents the rooms' area. What is the length for the room if its area is 350ft^2?
Answer:
2w^2-3w, and 25 feet
Step-by-step explanation:
l=2w-3
w(2w-3)
2w^2-3w
2w^2-3w=350
2w^2-3w-350=0
The positive solution is 14 so that's the width. The length is 25 feet
1. You plan to drive to a resort that is 399 miles away. Your car presently gets 28 miles per gallon. How many
gallons of gas will it take you to get to the resort?
Answer: 399÷28= 14.25
Step-by-step explanation:
Divide 399 by 28 = 14.25 gal
.
Expressions that are used so much that people get tired of hearing them are called:
cliches
idioms
similes
metaphors
Answer:
i would go with cliches cuz i know what all the others are
Step-by-step explanation:
Answer:
cliches
Step-by-step explanation:
Craig likes to collect vinyl records. Last year he had 10 records in his collection. Now he has 12 records. What is the increase of his collection
Answer:
2
Step-by-step explanation:
What is the rate in teaspoons of toasted sesame seeds per teaspoon of pepper flakes?
Answer:
It’s 12
Step-by-step explanation:
12 tsp of toasted sesame seeds per teaspoon of pepper flakes
What is Fraction?A fraction represents a part of a whole.
Given that Omar need 8 tsp of toasted sesame seed for 2/3 tsp of pepper flake.
We need to find the rate in teaspoons or toasted sesame seeds per teaspoon of pepper flakes.
Based on the given conditions, formulate:
We need to find Eight divided by the fraction two by three.
8/(2/3)
When a whole number is divided by a fraction then the multiply the whole number by the reciprocal of the fraction.
8×3/2
When eight is multiplied with 3 is 24.
24/2
Divide numerator and denominator by 2
We get twelve,12
Hence, 12 tsp of toasted sesame seeds per teaspoon of pepper flakes
To learn more on Fractions click:
https://brainly.com/question/10354322
#SPJ3
Which is the best estimate 61.4 +88.3
Answer:
149.7
Step-by-step explanation:
help 9th grade algebra!!
Answer:
16 gallons
Step-by-step explanation:
195= 12x-3
please help me guys i’ll love u forever
Answer: 40
Step-by-step explanation:
I know this because i got it right on my quiz hope this helps !!
Please help with question I’m confused
Answer:
x = 2
Step-by-step explanation:
Subtract x from both sides
you get 6x = 12
divide the 12 by 6
you get 2.
Answer:
x = 2
Step-by-step explanation:
4 - 7x = x - 12
+7x +7x
4 = 8x - 12
+12 +12
16 = 8x
16/8 = x
2 = x
Which expression would be easier to simplify if you used the associative property to change the grouping? O A. (27 + 4.5) + 1.5 OB. ++(-) O C. - + [(-) + (-) O D. 14+ (20 + 80)
Answer:
the answer is D
Step-by-step explanation:
Answer:
The answer is D if you look hard enough and think hard enough you will find the answer as well
consider a cubic polynomial function g(x) with solutions x = 3 and x =2 -i. what statement must be true?
x = 3 would be your answer
because i have no clue just thanks and five stars please
-3x+y=5
2x + 5y = -43
Need help solving this and writing it as a ordered pair
Answer:
x=-4, y=-7 Ordered pair: (-4, -7)
Step-by-step explanation:
-6x+2y=10
6x+15y=-129
17y=-119
y=-7
-3x-7=5
-3x=12
x=-4
What's the value of 16-2t=5t+9
Step-by-step explanation:
16-9=5t+2t
7=7t
t=1
The answer is 1
Answer:
t=1
Step-by-step explanation:
16-2t=5t+9
+2t +2t
16=7t+9
-9 -9
7=7t
t=1
14.5.31In what direction is the derivative of f(x,y)P(9,2) equal to zero?Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A.uequalsnothing(Simplify your answer. Use a comma to separate answers as needed. Type your answer in terms of i and j.)B.There is no solution.
Answer:
A. u equals nothing.
Step-by-step explanation:
Derivative is a function of real variable. The derivatives derives the price of underlying asset from the fluctuations. The function of x and is represented as dx / dy which is solved as a equation to find the value of asset.
what has more surface area? A 6cm cube or a rectangular prism with a 3 cm square base and a height of 12 cm?
Answer:
cube
Step-by-step explanation:
S.A cube = 6×(6CM)² = 216cm²
S.A rect. prism = 2×(3cm)² + 4×3cm×12cm
= 18 cm² + 144cm²
= 162cm²
S.Acube is greater
11. There are 300 and 250 cows on Farms A and B respectively. How
many cows from Farm A must be transferred to Farm B so that the
number of cows on Farm B is four times the number of cows on
Farm A?
Answer:
I think it's twenty five
Answer:
190
Step-by-step explanation:
we want 1/5 on farm A and 4/5 of cows on farm B.
[tex] \frac{(300+250)}{5} = \frac{550}{5} = 110[/tex]
110 cows is 1/5. 550-110=440 and 440 is 4/5.
we want 110 cows on farm A and 440 on farm B.
So, there already is 250 cows on farm B and we need to move 440-250=190 cows from farm A to farm B.
And you can check that 4*110=440
A shirt is discounted by 40%. The discounted prices is $72. What was the original price of the shirt? PLEASE HELP!!
Answer:
120
Step-by-step explanation:
Victor runs 3 laps around the track every 5 minutes. Complete the table to show the relationship between the number of laps and time spent running. write your answers in the blanks.
Answer: hopefully this helps
Step-by-step explanation:
In 1 minute Victor runs 3/5 laps and in 6 minutes Victor runs 3.6 laps.
Given that, Victor runs 3 laps around the track every 5 minutes.
What is proportion?Proportion, in general, is referred to as a part, share, or number considered in comparative relation to a whole. Proportion definition says that when two ratios are equivalent, they are in proportion. It is an equation or statement used to depict that two ratios or fractions are equal.
Now, 3/5 = x/1
⇒ x= 3/5 laps
Here, [tex]1\frac{1}{5} =1.2[/tex]
3/5 = 1.2/y
⇒ 3y=6
⇒ y=2 minutes
3/5 = z/6
⇒ 18=5z
⇒ z=18/5
⇒ z=3.6 laps
Therefore, in 1 minute Victor runs 3/5 laps and in 6 minutes Victor runs 3.6 laps.
To learn more about the unitary method visit:
https://brainly.com/question/22056199.
#SPJ5
how do you find the average rate of change of the profit for a product?
Answer:
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.
Step-by-step explanation:
HELP ME PLZ 10 BRANLY POINTS IF HELPED PLZ. The table shows the first five multiples for the numbers 3 and 6. A 2-column table with 2 rows. Column 1 is labeled Number with entries 3, 6. Column 2 is labeled Multiples with entries (3, 6, 9, 12, 15, ellipsis), (6, 12, 18, 24, 30, ellipsis). The LCM of 3 and 6 is .
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
Alison has $400 saved and gets $15 per week for her allowance. If she saves
her allowance for the next 6 weeks, and then spends $80 on a scooter, how
much money will she have after the 6 weeks?
Which of the following sets of equations represents this problem?
Answer:
77
Step-by-step explanation:
dont use that
kimfrelcastro3kimfre
What does kimfrelcastro3kimfre mean?
12/x = 10/12
Solve problem to the nearest tenth
what is 4,500 divided by 64 as a decimal ?
A store receives its products in cubed-shaped boxes that measure 2/3 feet on each side. How many of these boxes will fit in a storage area that measures 5 and 1/3 feet long, 2 and 2/3 feet wide, and 2 feet tall?
Answer:
33 boxes. .75 of a box is not a box LOL
Step-by-step explanation:
8/27ft is each cube
10ft is the whole box
now divide them 135/4
simplify and that's your answer
