Answer:
ength (l) : (10-2*5/3) = 20/3 width(w): (10 - 2*5/3) = 20/3 height(h): 5/3Step-by-step explanation:
Let x is the side of identical squares
By cutting out identical squares from each corner and bending up the resulting flaps, the dimension are:
length (l) : (10-2x)width(w): (10-2x)height(h): xThe volume will be:
V = (10-2x) (10-2x) x
<=> V = (10x-2[tex]x^{2}[/tex]) (10-2x)
<=> V = 100x -20[tex]x^{2}[/tex] - 20[tex]x^{2}[/tex] + 4[tex]x^{3}[/tex]
<=> V = 4[tex]x^{3}[/tex] - 40[tex]x^{2}[/tex] + 100x
To determine the dimensions of the largest box that can be made, we need to use the derivative and and set it to zero for the maximum volume
dV/dx = 12[tex]x^{2}[/tex] -80x + 100
<=> 12[tex]x^{2}[/tex] -80x + 100 =0
<=> x = 5 or x= 5/3
You know 'x' cannot be 5 , because if we cut 5 inch squares out of the original square, the length and the width will be 0. So we take x = 5/3
=>
length (l) : (10-2*5/3) = 20/3 width(w): (10 - 2*5/3) = 20/3 height(h): 5/3To determine the dimensions of the largest box that can be made from a tin sheet, we need to find the side length of the square that will be cut out from each corner of the tin sheet. The dimensions of the largest box that can be made are approximately 6.67 inches by 6.67 inches by 1.67 inches.
Explanation:To determine the dimensions of the largest box that can be made from a tin sheet, we need to find the side length of the square that will be cut out from each corner of the tin sheet. Let's assume the side length of the square to be x inches. The length and width of the resulting box will be 10 - 2x inches and 10 - 2x inches, respectively. The height of the box will be x inches. To find the dimensions of the largest box, we need to find the value of x that maximizes the volume of the box.
The volume of the box is given by V = (10 - 2x)(10 - 2x)(x). We can write this as V = 4x^3 - 40x^2 + 100x. To find the value of x that maximizes the volume, we can take the derivative of V with respect to x and set it equal to 0. Differentiating V, we get dV/dx = 12x^2 - 80x + 100. Setting this equal to 0 and solving for x, we find x = 1.67 inches (rounded to two decimal places). Therefore, the dimensions of the largest box that can be made are approximately 6.67 inches by 6.67 inches by 1.67 inches.
Learn more about Metal Fabrication here:https://brainly.com/question/32113491
#SPJ3
1/7 divided by 4. 1/7 divided by 4 1/7 divided by 4 1/7 divided by 4 1/7 divided by 4 1/7 divided by 4 1/7 divided by 4
Answer:
0.035714285714286
Step-by-step explanation:
is the decimal form
the number 0.7777 repeats forever therefore it is irrational true or false?
Answer:
It's false, this number is a rational number.
Step-by-step explanation:
It's false, the kind of decimal where the same digits repeats forever are known as periodic decimals and they can be represented with fractions therefore they are a part of the rational numbers. To represent this number in a fraction form we need to first identify the part that repeats, in this case it's 7, since it's only one number we can insert it in the numerator and the denominator will have a 9, if it were two numbers the denominator would have a 99 and so on. So in this case:
7/9 = 0.7777...
The statement is false. The number 0.7777 repeating is not an irrational number, but a rational number, as it can be expressed as the fraction 7/9.
Explanation:The statement is false. The number 0.7777 repeating is not an irrational number. An irrational number is a number that cannot be expressed as a/b, where a and b are integers and b ≠ 0. However, the number 0.7777 repeating can be expressed as a fraction, specifically, as 7/9. Therefore, it does not meet the definition of an irrational number and is, in fact, a rational number.
Learn more about Irrational Number here:https://brainly.com/question/33462926
#SPJ3
A box contains cards that are numbered from 1 to 100. What is the probability of randomly selecting a number that is less than 12
A 1/100
B 1/12
C 11/100
D 12/100
Answer:
c
Step-by-step explanation:
If there are 100 cards and you can only pick numbers less then 12, you then could only have a number between 1 and 11
Answer:
its c
Step-by-step explanation:
What is the answer to 1/4 + 7/10 in its simplest form
[tex]\dfrac{1}{4} =0,25\\\dfrac{7}{10} =0,7\\\dfrac{1}{4} +\dfrac{7}{10}=0,25+0,7=0,95[/tex]
Find the height of the giraffe in the diagram below
the giraffe is 18 feet tall.
The drama club members at Millie's middle school are selling tickets to the school play. Millie wants to determine the average
number of tickets sold. First, she surveyed the club members in her homeroom, and then she surveyed every third member of
the club in her physical education class. Which sampling technique should produce a more representative sample?
Answer:
Every third member of the club in her physical educations class
Step-by-step explanation:
The reasoning behind this is because if Millie surveys her club members who are hosting the school play, she wouldn't be able to get an accurate average number of tickets sold because the club member have a bias in terms of purchasing the tickets as they run the club. Meanwhile the physical education class has a more random assessment because every third person in the class may or may not have an interest in the play the same way the club would.
Answer:The answer is
Neither sample will be representative. B on edge
Step-by-step explanation:):):):):):):):):):) I GOT IT RIGHT
Do ya'll know how to do this? (grade 10)
Please help im stranded :(
(15 Points)
Answer:
a.) (-16,0)(0,12)
b.) (-3,0)(0, 3/2)
Step-by-step explanation:
Plug it in for each.
y= 3/4x+12 (Lets plug in our x intercept of (x,0) and our y intercept of (0,y)
x-intercept
0=3/4x+12
-12 -12
-12=3/4x
-12/(3/4)=x
-16=x
SO, your x intercept is -16 which is point (-16, 0)
Now to do your y intercept in lets plug x in as 0 instead this time:
y = 3/4(0)+12
y = 12
Your y intercept is 12
Now for b its the same process of plugging 0 in for the values let
y-int=-2(0)-4y+6=0
-6 -6
-4y/-4=-6/-4 <- divide both sides by 4
y = 3/2 <- Simplified answer
y int = (0, 3/2)
x-int = -2x-4(0)+6 = 0
+6 +6
-2x = 6
x = 6/-2 <-- Divide both sides by -2
x = -3 <-- Simplify
x-int = (-3, 0)
Question 1 (1 point)
The ordered pairs in the table below represent a linear function.
Xy
23
9 h
What is the slope of the function?
1/2
Oo oo
1/4
The angle shown is in standard position. Select the possible measures of the angle. –450° –360° –270° –90° 90° 270° 360° 450° On a coordinate plane, 2 rays are shown. One ray is on the x-axis between quadrants 1 and 4, and the other ray is on the y-axis between quadrants 3 and 4.
Answer: a, d,f
On edge.
Step-by-step explanation:
The possible measures of the angle are -450°, -90° and 270°
What is terminal side?An angle is in standard position if its vertex is located at the origin and one ray is on the positive x-axis. The ray on the x-axis is called the initial side and the other ray is called the terminal side.
In any standard position, the vertex of the angle is on the origin (0, 0) of the x and y-axis. Therefore, one side of the angle is always fixed along the positive x-axis, namely, going to the right along the axis in the 3 o'clock direction. This is called the initial side of the angle. The other side of the angle is called the terminal side.
Hence, the angles that match the figure above are the measures of the angle. That is:
-450°
-90°
270°
For more references on terminal side, click;
https://brainly.com/question/22593628
#SPJ5
How would you find # 3 HELP ASAP PLZZ
Answer:
24 = AE
How to find it
AB = 26 and BD = 20 find AE
Because its a rhombus point is the midpoint of BD so BE is 1/2 BD so BE is 10
Now we no longer need to use BD and instead we use BE
Now since ∠BEA is 90° we can use the Pythagorean Theorem
AB²-BE²=AE²
26²-10²=AE²
676-100=AE²
576=AE²
[tex]\sqrt{576}[/tex]=AE
24 = AE
Brian just bought 9 bags of 14 cookies each. He already had 8 cookies in a jar. How many cookies does Brian have now?
Answer: 134 cookies
Step-by-step explanation: First we want to find the total amount of cookies Brain bought. Simply multiply 14 x 9 to find the total amount of cookies bought.
14 x 9 = 126 cookies.
Since Brian already had 8 cookies in the jar, we will simply add the new amount of cookies he bought to the cookies in the jar left.
126 + 8 = 134 total cookies that Brain has now.
A house was built in 1985 and cost $62000. It was sold in 2003 for $310000.
(a) Work out the 1985 price as a percentage of the 2003 price.
(b)Calculate the percentage increase in the price from 1985 to 2003.
Answer:
a) 20%
b) 400%
Step-by-step explanation:
In a) you firts do
$310000=100% what about $62000.Then cross multiply
$62000×100%=6200000÷310000=20%
In b) you first do
$62000=100% what about $248000.Then cross multiply
$248000×100=$24800000÷62000=400%
The 1985 cost of the house is 20% of the 2003 price. There was a 400% increase in price from 1985 to 2003.
Explanation:To answer both parts of this question, we will use the concept of percentages.
(a) First, we calculate the 1985 price as a percentage of the 2003 price by dividing the cost of the house in 1985 by the cost in 2003, and then multiply the result by 100 to give a percentage. So we have (62000/310000)*100 = 20%. Therefore, the 1985 house cost represents 20% of the 2003 price.
(b) To calculate the percentage increase from 1985 to 2003, we take the difference in prices from 1985 to 2003, divide this by the original price in 1985, and then multiply the result by 100. So we have ((310000-62000)/62000)*100 = 400%. Hence, there was 400% increase in the price from 1985 to 2003.
Learn more about Percentage here:https://brainly.com/question/32197511
#SPJ3
What expression represents the volume of the prism, in cubic units?
Final answer:
Volume of a prism is represented in cubic units as length x width x height. The SI unit of volume is cubic meter (m³) and a common unit is the liter (L), equivalent to a cubic decimeter (dm³).
Explanation:
Volume is defined as the amount of space occupied by a solid in cubic units, and for a prism that is length x width x height. In the case of volume, it goes like length cubed, represented as V = L³.
The SI unit of volume is cubic meter (m³), equal to the space occupied by a cube of 1m on each edge. A more commonly used unit of volume is the liter (L), which is equivalent to a cubic decimeter (dm³).
The volume of the prism is 81 m3. What is the volume of a pyramid that has the same base and height as this prism?
__m3?
Answer:
27
Step-by-step explanation:
When looking for the volume of a prism you multiply the base and height to get the volume. When looking for the volume of a pyramid of the same base and height all you need to do is multiply .333 or 1/3 in decimal form to get the correct answer.
The volume of the prism: (3)(3)(9) = 81
The volume of the pyramid: (1/3 or .333)(3)(3)(9) = 26.973 = 27
Consider the matrix shown below:
What are the dimensions of A.
3 X 4
4 X 3
12
A and B
Answer:
Dimensions of a matrix:
r × c
Where r is the no. of rows and c is the no. of columns
If A has 4 rows (horizontal) and 3 columns (vertical),
Dimensions are: 4 × 3
If A has 3 rows (horizontal) and 4 columns (vertical),
Dimensions are: 3 × 4
A logical argument arranged with statements and reasons.
The answer is Two column proof
Luke is x years old. Kate is half of Luke's age. Adam is 6 years younger than Kate. Adam is 4 years old. How old is Luke?
Answer: luke is twenty
Step-by-step explanation: Adam is 4 plus 6 is 10 ten times two is twenty
Answer:
luke is 20
Step-by-step explanation:
because you had 6 and 4 and multiply it by 2
What if you wanted a smaller margin of error in your interval for the proportion of left-handed people (say plus or minus 2%)? How many people would you need to survey in order to get a margin of error of 2% ? You can use the LaTeX: \hat{p} p ^ that you already calculated as your estimate in the sample size formula.
Answer:
The sample size n= 2500
A survey with 2500 left-handed people guarantees the given margin error is 2%
Step-by-step explanation:
Explanation:-
The margin of error = [tex]\frac{2 S.D}{\sqrt{n} }[/tex]
here for proportions , the standard deviation (σ) = [tex]\sqrt{p(1-p)} \leq \frac{1}{2}[/tex]
[tex]Margin of error = \frac{2 S.D}{\sqrt{n} } \leq \frac{2(\frac{1}{2}) }{\sqrt{n} }[/tex]
[tex]Margin of error = \frac{1}{\sqrt{n} }[/tex]
now The necessary sample size is
[tex]n= \frac{1}{(M.E)^{2} }[/tex]
Given data the survey in order to get a margin of error of 2%
M.E = 0.02
[tex]n= \frac{1}{(0.02)^{2} } = 2500[/tex]
Conclusion:-
The sample size n= 2500
A survey with 2500 left-handed people guarantees the given margin error is 2%
Amber is trying to solve 3x^2-4x=0 using a graphical method. She therefore starts by drawing the graph of y=3x^2 on a grid she now intends to complete her method by drawing a straight line graph in the same grid. complete Ambrrs method to solve 3x^2-4x=0
You can rewrite the equation as
[tex]3x^2-4x=0 \iff 3x^2=4x[/tex]
So, you draw the graph of [tex]y=3x^2[/tex] (the parabola), and then the graph of [tex]y=4x[/tex] (the line), and see where they intersect.
To solve the equation 3x^2 - 4x = 0 graphically, Amber can draw the graph of y=3x^2 and a straight line that intersects the parabola. The x-values where the line intersects the parabola are the solutions to the equation.
Explanation:To solve the equation 3x^2 - 4x = 0 using a graphical method, Amber starts by drawing the graph of y=3x^2. This is a parabola that opens upwards with a vertex at the origin (0,0). Since she wants to find the x-values that satisfy the equation, she needs to draw a line that intersects the parabola. The line should be a straight line that crosses the x-axis at the values of x that make the equation true.
To draw this line, she needs to find two points that lie on the line. Since the equation is linear, she can choose any two points to draw the line. Let's choose two points that are easy to calculate. For example, when x=0, y=9 and when x=1, y=12. Plot these two points on the graph.
Next, draw a straight line that passes through these two points. Extend the line so that it intersects the parabola. The x-values where the line intersects the parabola are the solutions to the equation 3x^2 - 4x = 0. In this case, the line intersects the parabola at x=0 and x=4/3.
Learn more about Graphical method for solving equations here:https://brainly.com/question/30340061
#SPJ3
Suppose a population of 200 crickets doubles in size every month the function f(x) equals 200×2 to the X power gives the population after X months how many crickets will there be after three years
Answer:
≈ 1.37 * [tex]10^{13}[/tex]
Step-by-step explanation:
Given the exponental function is:
F(x) = 200*[tex]2^{x}[/tex] where:
200 is initial value of crickets 2 is the base number (doubles in size every month) x is the number of monthsHow many crickets will there be after three years?
3 years = 12*3 = 36 so x = 36. Substitute x into the function we have:
F(x) = 200*[tex]2^{36}[/tex] ≈ 1.37 * [tex]10^{13}[/tex]
So the number of crickets after three years is: ≈ 1.37 * [tex]10^{13}[/tex]
Answer: There will be 1.37 x 10^13 crickets after 3 years.
Step-by-step explanation:
Hi, to answer this question we simply have to replace x in the formula by the number of months in 3 years.
f (x) = 200 (2^x)
Where x is the number of months
Since one year has 12 months,
for 3 years: 3 x 12 = 36 months
Substituting x= 36 on the function
f (36) = 200 (2^36)
f (36) = 200 (2^x)
f(36) = 1.37 x 10^13
Feel free to ask for more if needed or if you did not understand something.
1. There are 65 adults and 15 children in a movie theater. Of these people, 41 adults and 6 children bought popcorn.
a) What is the probability that a randomly selected person in the theater is a child or someone who bought popcorn.
b) What is the probability that a randomly selected person is an adult or someone who did not buy popcorn.
My answers are 0.70 and 0.925 respectively. My friends believe otherwise.
Answer:
a. 7/10
b. 79/240
Step-by-step explanation:
Please see the attached files for details
Answer:
a) 0.70
b) 0.925
You are right and your friends are wrong.
Step-by-step explanation:
- 65 adults and 15 children in a movie theater
- 41 adults and 6 children bought popcorn
Number of children in the theatre = 15
Number of adults in the theatre = 65
Number of children that bought popcorn = 6
Number of children that did not buy popcorn = 15 - 6 = 9
Number of adults that bought popcorn = 41
Number of adults that did not buy popcorn = 65 - 41 = 24
Total number of persons that bought popcorn = 41 + 6 = 47
Number of people that did not buy popcorn = 80 - 47 = 33
Total number of persons in the theatre = 65 + 15 = 80
a) The probability that a randomly selected person in the theater is a child or someone who bought popcorn.
Required probability
= (number of children or people that bought popcorn) ÷ (total number of people)
There 15 children, and 47 people that bought popcorn, but of the 47, there are still 6 children amongst them.
Hence, the number of children or people that bought popcorn = 15 + 47 - 6 = 56
Total number of people = 80
Required probability = (56/80) = 0.70
b) The probability that a randomly selected person is an adult or someone who did not buy popcorn.
Required probability
= (number of adults or people who did not buy popcorn) ÷ (total number of people)
There are 65 adults, and 33 people that did not buy popcorn, but of the 33, there are still 24 adults amongst them.
Hence, the number of adults or people who did not buy popcorn
= 65 + 33 - 24 = 74
Total number of people = 80
Required probability = (74/80) = 0.925
You are right and your friends are wrong.
Hope this Helps!!!
(3 × 9) + (5 + 8) + (33 ÷ 3) =
Answer:
Step-by-step explanation:
(3 x 9) + (5 + 8) + (33/3) = 51
27 + 13 + 11 = 51
Answer:
51
Step-by-step explanation:
use PEMDAS
A circle with radius of 5 cm sits inside a 11 cm * 11 cm rectangle.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
Answer:
42.43 [tex]cm^{2}[/tex]
Step-by-step explanation:
Given:
A circle with a radius of 5 cm sits inside a 11 cm x 11 cm rectangle.
Question asked:
What is the area of the shaded region as shown in the figure ?
Solution:
First of all calculate area of circle and then area of rectangle:-
[tex]Area\ of\ cirle=\pi r^{2}[/tex]
[tex]=\frac{22}{7} \times5\times5\\ \\ =\frac{550}{7}\\ \\=78.571\ cm^{2}\\[/tex]
As here length an width both are 11 cm, we can say that this is a square.
[tex]Area\ of\ square=(Side)^{2}[/tex]
[tex]=11\times11=121\ cm^{2}[/tex]
Now, area of shaded region = Area of square - Area of circle
= 121 - 78.571 = 42.429 [tex]cm^{2}[/tex]
Therefore, the area of the shaded region will be 42.43 [tex]cm^{2}[/tex]
A bag contains 9 marbles: 3 are green, 2 are red, and 4 are blue. Lena chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that both marbles she chooses are blue? Write your answer as a fraction in simplest form.
Final answer:
The probability that both marbles chosen are blue is 1/6. This is calculated by multiplying the probability of drawing a blue marble on the first and second draws consecutively (4/9 × 3/8).
Explanation:
To calculate the probability that Lena chooses two blue marbles in a row from a bag containing 3 green, 2 red, and 4 blue marbles without replacement, we must consider two consecutive events. The probability of pulling one blue marble on the first draw is 4 out of 9, since there are 4 blue marbles out of a total of 9. After the first blue marble is drawn, there are now only 3 blue marbles left out of a total of 8 marbles (since one was not replaced). The probability of drawing a blue marble on the second draw is therefore 3 out of 8.
These two probabilities must be multiplied together to find the overall probability of both events occurring in sequence:
Probability of first blue marble = 4/9
Probability of second blue marble after the first is drawn = 3/8
Overall probability = (4/9) × (3/8) = 1/6
So, the probability that both marbles Lena chooses are blue is 1/6, which is already in its simplest form.
20 POINTS If the perimeter of a triangle is 14.4. What is the area?
Answer:
A = 9.9648
Step-by-step explanation:
if the triangle is equilateral =>
P = 3L => L = 14.4/3 = 4.8
A = L²√3/4
= (4.8)²√3/4
= 23.04√3/4
= 5.76×1.73
= 9.9648
5 2/3 x 4 1/2 make sure your anser is correct
two data sets and their mean absolute deviations are shown study study the plots of each data set and then use the data set and use the drop down menus yo answer the questions below.
Answer:
the first part is distant outlier, i got the other two wrong tho :,(
Answer:
spread out from and larger
Step-by-step explanation:
hope it helps
What is the value of b in the equation below? 9^-8 x 9^-2 = a^b
-10
-6
9
16
Answer:
-10
Step-by-step explanation:
9^-8 x 9^-2 = a^b
We know that x^y * x^z = x^(y+z)
9^-8 x 9^-2 = 9^(-8+-2) = 9^(-10)
a= 9
b = -10
sin(42) = cos(x)
Solve for x
Answer:
X = 48
Step-by-step explanation:
When you type sin(42) in your calculator it will give you something around 0.669.
If you try reverse sinus sin-1(0.669) it will give you 42.
Therefore you can say that:
Cos(x) = 0.669
So you can reverse the cos to get your answer
Cos-1(0.669) = 48
Or
Cos-1 (sin(42))
(5^3)5
help me with my math i need to get up to an 70%
Answer: 625
Step-by-step explanation:
Do 5 to the third power, get the answer, and then multiply times 5 to get 625. Please mark this as the brainliest answer <3