Answers
Step-by-step explanation:
Chop it into shapes you know how to solve with:
Rectangle with dementions 6m x 3m A=18m^2
Rectangle with dementions 12m x (8-3)m A=60m^2
Rectangle with dementions 2m x 3m A=6m^2
total area= 18+60+6=84m^2
Peremeter:
12+6+2+(12-6-2)+3+3+8+8
=12+12+3+3+8+8
=24+6+16
=30+16
=46m
Related Questions
if you could plz help it would amazing bc I need to finish my hw before 7:00
Answers
Answer: Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11.
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Equivalently, it is a positive integer that has at least one divisor other than 1 and itself. .
Step-by-step explanation:
i really need help please
Answers
.3x12=3.6
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A chemist has three different acid solutions. The first acid solution contains 20 % acid, the second contains 40 % and the third contains 70 % . They want to use all three solutions to obtain a mixture of 56 liters containing 50 % acid, using 2 times as much of the 70 % solution as the 40 % solution. How many liters of each solution should be used?
Answers
Answer:
The volume of the first acid solution (containing 20% acid) in the mixture is 14 liters
The volume of the second acid solution (containing 40% acid) in the mixture is 14 liters
The volume of the third acid solution (containing 70% acid) in the mixture is 28 liters
Step-by-step explanation:
The percentage of acid in the first acid solution = 20%
The percentage of acid in the second acid solution = 40%
The percentage of acid in the third acid solution = 70%
The volume they want to use the three solutions to obtain a mixture of = 56 liters
The concentration of the mixture they want to obtain = 50%
The amount of the 70% solution to be used = 2 × The volume of the 40% solution to be included
Let 'x', 'y', and 'z', represent the volumes of the first second and third acid solutions in the mixture
Therefore, from the question parameters, we get;
x + y + z = 56...(1)
z = 2·y...(2)
0.2·x + 0.4·y + 0.7·z = 0.5 × 56...(3)
Multiplying equation (3) by 10 and then subtracting equation (1) multiplied by 2 from the result gives;
10 × (0.2·x + 0.4·y + 0.7·z = 0.5 × 56) = 2·x + 4·y + 7·z = 5 × 56 = 280
2·x - 2·x + 4·y - 2·y + 7·z - 2·y = 280 - 2 × 56 = 168
2·y + 5·z = 168
From equation (2) and (4), we get;
2·y + 5·z = 2·y + 5×(2·y) = 168
12·y = 168
y = 168/12 = 14
The volume of the second acid solution in the mixture, y = 14 liters
From equation (2), we have;
z = 2·y
∴ z = 2 × 14 = 28
The volume of the third acid solution in the mixture, z = 28 liters
From equation (1), we get;
x + y + z = 56
x = 56 - (y + z)
∴ x = 56 - (14 + 28) = 14
The volume of the first acid solution in the mixture, x = 14 liters.
Sharon uses 6.3 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
Answers
Given:
Sharon uses 6.3 pints of blue paint and white paint to paint her bedroom walls.
[tex]\dfrac{4}{5}th[/tex] of this amount is blue paint and the rest is white paint.
To find:
The pints of white paint did she use to paint her bedroom walls.
Solution:
We have,
Total paint used = 6.3 pints
Blue paint = [tex]\dfrac{4}{5}th[/tex] of total paint used
= [tex]\dfrac{4}{5}\times 6.3[/tex]
= [tex]5.04[/tex]
White paint = Total paint used - Blue paint
= [tex]6.3-5.04[/tex]
= [tex]1.26[/tex]
Therefore, Sharon uses 1.26 pints of white paint to paint her bedroom walls.
If a nintendo costs $225 and teh sales tax is 4.75%, how much will it cost in total to get the nintendo?
Answers
Answer:
$235.69
Step-by-step explanation:
Add 10.6875 to 225
Answer:
$235.69
Step-by-step explanation:
A variety pack of snacks contains 4 pretzel bags, 3 popcorn bags and 3 cheddar cracker bags. What is the probability that someone selects a pretzel bag, keeps it, and then selects another pretzel bag. HELLP PLS
Answers
Answer:
2/15
Step-by-step explanation:
Given that :
pretzel = 4
Popcorn = 3
Cheddar cracker = 3
Total = 4 + 3 + 3 = 10
Probability = Required outcome / Total possible outcomes
Selecting with replacement :
First selection :
P(pretzel bag) = 4 / 10
Second selection :
P(pretzel bag) = 3 / 9
P(2 pretzel bags) = 4/10 * 3/9 = 12 / 90 = 2/15
Find the domain and range, and is it a function?
Answers
6) it is a function. Domain: (-infinity, infinity) Range: [3,3]
7) it is a function. Domain: (-infinity, infinity) range: (-infinity, infinity)
8) it is a function. Domain: [0, infinity) range: [0, infinity)
divide 81m in ratio 5:4
Answers
Answer:
45:36
Step-by-step explanation:
Please correct me if not correct.
Nkechi wants to use a one-sample z interval to estimate what proportion of candies in a bag are red. She takes a random sample of 24 of the 80 total candies and finds that 18 of the candies in the sample are red. Which conditions for constructing this confidence interval did Nkechi's sample meet? Choose all answers that apply
Answers
Answer: The data is a random sample from the population of interest.
Step-by-step explanation: The condition is met since she randomly selected the sample from the population of interest.
The data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)
What are the conditions for valid inference about one proportion?Random sample: The sample should be taken randomly.Normal distribution of proportion: The sampling distribution of the proportion we're taking about should be normally distributed.Independent observations: Each of the observations must be independent.The missing options are:
A. The data is a random sample from the population of interests.
B The observed counts of successes and failures are both sufficiently large.
C. Individual observations can be considered independent.
For this case, we're given that the sample was random.
Sample size is 24,which is not sufficiently large (usually we take > 30 as sufficiently large size).
Also, each candle was independent for being red colored.
Thus, the data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)
Learn more about valid inference about proportion here:
https://brainly.com/question/3663642
Convert 0.9 cm into m
Answers
Answer is 0.009
0.9 ( 0.01 m / cm ) = 0.009
Will mark brainliest if done within 20 minutes of this being posted! NO LINKS NO FILES. Solve the radical equations and show your work, check your solutions too.
Answers
Step-by-step explanation:
5√x+3 = -20
÷5. : √x+3 = -4
square: x+3 = 16
-3: x = 13
√x+18 -2 = x -4
+2 : √x+18 = x -2
square: x+18 = x^2 - 4x +4
-18: x = x^2 -4x -14
-x : 0 = x^2 -5x - 14
foil: (x- 7) (x+2) = 0
x = 7, -2
An inspector inspects large truckloads of potatoes to determine the proportion with blemishes prior to using the potatoes to make potato chips. She intends to compute a 95% confidence interval for this proportion. To do so, she selects a simple random sample of 90 potatoes, and finds 12 with blemishes. The 95% confidence interval is (0.063, 0.204). What is the correct interpretation for this confidence interval?
The inspector can be 95% confident that the proportion of potatoes with blemishes is 0.133.
In 95% of samples taken, between 6.3% and 20.4% of the sampled potatoes would have blemishes.
The inspector can be 95% confident that the interval from 0.063 to 0.204 captures the proportion of all potatoes on the truck with blemishes.
There is a 5% probability that the proportion of all potatoes that have blemishes is either below 0.063 or above 0.204.
Answers
Answer:
The inspector can be 95% confident that the interval from 0.063 to 0.204 captures the proportion of all potatoes on the truck with blemishes.
Step-by-step explanation:
Answer:
i put my answer there sorry if its sloppy
Step-by-step explanation:
What is the volume of a hemisphere with a radius of 4.9 ft, rounded to the nearest
tenth of a cubic foot?
Answers
The volume of the hemisphere with the given value of radius to the nearest tenth is 246.4 cubic foot.
Hemisphere
A hemisphere is gotten when a sphere is cut into two equal halves.
The volume of a hemisphere is expressed as;
V = (2/3)πr³
Where r is the radius and π is pi ( π = 3.14 )
Given the data in the question;
Radius of the hemisphere r = 4.9ftVolume of the hemisphere V = ?To determine the volume of the hemisphere, we substitute our values into the expression above.
V = (2/3)πr³
V = (2/3) × π × (4.9ft)³
V = (2/3) × π × 117.649ft³
V = 246.4ft³
Therefore, the volume of the hemisphere with the given value of radius to the nearest tenth is 246.4 cubic foot.
Learn more about volume of hemisphere here: https://brainly.com/question/3362286
What is the volume of the composite figure? 1,200 units3 4,400 units3 5,040 units3 6,000 units3
Answers
Answer:
6000
Step-by-step explanation:
Answer:
the answer is D
Step-by-step explanation:
If x = 2, y = 3 and z = 5, calculate the following: 2yz ÷ 3
Answers
Step-by-step explanation:
2x 3x5 = 30 ÷ 3 = 10
hope this helps
What expression can be used to solve 2/5 divided by 3/4 = ?
Move numbers and a symbol to the boxes to show the expression.
Answers
Answer:
0.53 then, search up 0.53 as a fraction and that's your answer. subscribe to amiredagoat Yt
Step-by-step explanation:
in 6 hours heather reads 30 chapters of a book what is her rate in chapters per hour
Answers
Answer:
5 chapters per hour
Step-by-step explanation:
30chapters/6hours = 5 chapters/hour
Tim has read 30 % of a book. He has 56 more pages to finish. How many pages are there in the book?
Answers
Answer:
80 pagesStep-by-step explanation:
Let the number of pages is xTim has read 30 % of a bookRemaining
100% - 30% = 70%70% of x is 0.7x
0.7x = 56x = 56/0.7x = 80 pagesAnswer:
[tex] \bf \huge 80 \: pages[/tex]
Step-by-step explanation:
Given that :Tim has read 30 % of a book.He has 56 more pages to finish.to find :How many pages are there in the book ?let us assume :total pages of book is 100•/•explanation :⟼ total book = 100•/•
⟼ Tim has read 30 % of a book.
⟼ 100 - 30 •/• = 70 •/•
⟼ 70 •/• = 56 pages
⟼ 1 •/• = 56 / 70
⟼ 100 •/• = 56 / 70 × 100
⟼ 100 •/• = 56 / 7 × 10
⟼ 100 •/• = 8 × 10
⟼ 100 •/• = 80 pages
∴ tim has 80 total pages in book.
Fill in the blank in the sentence below with the correct term. The ___________ is the number or numbers that occur most often in a set.
Answers
How many more brooms must each earn in order to have enough credit to get a month off with pay?
Answers
Answer:
5
Step-by-step explanation:
What is the y-intercept
Answers
Answer:
B. -2
Step-by-step explanation:
0 is where the x-intercept is on (0, 0) and y is -2 so it would be placed as (0, -2) making -2 the y-intercept.
-11 2/3 x (-4 1/5) =
Answers
Answer:
Step-by-step explanation:
first make the improper fractions into proper fractions by multiplying the whole number with the denominator and adding it to the numerator
-11 2/3
-11*3=-33
-33+2=-31
-31/3
-19/5
then multiply
-31*-19=589
5*3=15
589/15 is your answer
number 7 pls im dead I need help
Answers
Answer:
c
Step-by-step explanation:
divide the two numbers.
What is the value of -|24|?
Answers
Answer:
-24
Step-by-step explanation:
because of the absolute value bar, it makes it positive, but with the NEGATIVE on the OUTSIDE of the Bars.
Solve for missing value
Answers
Please help me out with this I don’t understand it
Answers
Answer:
x = 7.55
Step-by-step explanation:
a = x
b = 8
c = 11
a² + b² = c²
x² + 8² = 11²
x² + 64 = 121
x² = 121 - 64
x² = 57
[tex]\sqrt{x^2} =\sqrt{57}[/tex]
x = 7.5498
Rounded to hundredths:
7.55
What determines the inherited traits of an organism? 1. the number of chromosomes in a cell
2. the size of the chromosomes
3. the proteins produced by a cell
4. the Gene's of its chromosomes
Answers
Answer:
Step-by-step explanation:
The length of metaphase chromosomes may vary considerably (in average from ∼1 to >20 μm)
The information to produce a protein is encoded in the cell's DNA. When a protein is produced, a copy of the DNA
Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
PLEASE HELP FAST!!!
find the equation of the line that is perpendicular to this line and passes through the point (-7, 6)
find the equation of the line that is parallel to this line and passes through the point (-7, 6)
Answers
Answer:
-7.6
Step-by-step explanation:
8 cm x 10 cm x 17 cm
This figure consists of a rectangle and a quarter circle
What is the perimeter of this figure?
Use 3.14 for pi.
Answers
Answer: 2length plus 2breath circle is 2pie r
Step-by-step explanation:
perimeter of a rectangle is 2L + 2 B a
You can buy 3 apples at the Quick Market for $1.05. You can buy 5 apples at
Stop and Save for $2.25. Which place is the better buy (best money value)?
Show work please:)
