Answer:
10/9 is the simplified fraction for 50/45.
Step-by-step explanation:
One floor of a dollhouse is 1.6 feet tall. The dollhouse contains two levels of living areas and an attic for a total of 2.5 floors. Jaime estimates the height of the dollhouse by computing 2 times 3. How does her estimate compare to the actual height of the dollhouse?
Her estimate is greater than the actual height because both factors were rounded up.
Her estimate is less than the actual height because both factors were rounded up.
Her estimate is greater than the actual height because both factors were rounded down.
Her estimate is less than the actual height because both factors were rounded down.
Answer:
Her estimate is greater than the actual height because both factors were rounded up.
Step-by-step explanation:
Given that:
Height per floor of doll house = 1.6m
Total number of floors in doll house = 2.5
Estimated height of doll house = 2 *3 = 6 meters
Actual height of doll house :
1.6m * 2.5 = 4 meters
Her estimate is greater than the actual height because both factors were rounded up.
Height per floor of 1.6m was rounded to 2m
Number of floors, 2.5 was rounded to 3
Hence, the cause of overestimation
Answer:
It's A for all da peeps dat dont feel like reading. ->-
Step-by-step explanation:
50 POINTS HELP PLEASE
Graph the system of inequalities. Show at least two points for each inequality. (Lesson 1.08)
Answer:
54fhuuyfghhhrfbifgifd
determine the maximum and minimum values of the function, at what values of x are they achieved? (without using a derivative)
\(y=\sin^3x-\sin^6x\)
The maximum and minimum values of the function is solved
Given data ,
We can find the maximum and minimum values of the function by taking the derivative of y with respect to x and setting it equal to zero.
y = (sin x)³ - (sin x)⁶
y' = 3(sin x)² cos x - 6(sin x)⁵ cos x
Setting y' equal to zero:
0 = 3(sin x)² cos x - 6(sin x)⁵ cos x
0 = 3(sin x)² cos x (1 - 2(sin x)³)
sin x = 0 or (sin x)³ = 1/2
If sin x = 0, then x = kπ for any integer k.
If (sin x)³ = 1/2, then sin x = (1/2)^(1/3) ≈ 0.866. This occurs when x = π/3 + 2kπ/3 or x = 5π/3 + 2kπ/3 for any integer k.
To determine whether these values correspond to a maximum or minimum, we can use the second derivative test.
y'' = 6(sin x)³ cos² x - 15(sin x)⁴ cos² x - 9(sin x)⁴ cos x + 6(sin x)⁵ cos x
y'' = 3(sin x)³ cos x (4(sin x)² - 5(sin x)² - 3cos x + 2)
For x = kπ, y'' = 3(0)(-3cos(kπ) + 2) = 6 or -6, depending on the parity of k. This means that these points correspond to a maximum or minimum, respectively.
For x = π/3 + 2kπ/3 or x = 5π/3 + 2kπ/3, y'' = 3(1/2)^(5/3) cos x (4(1/2)^(2/3) - 5(1/2)^(1/3) - 3cos x + 2). This expression is positive for x = π/3 + 2kπ/3 and negative for x = 5π/3 + 2kπ/3, which means that the former correspond to a minimum and the latter to a maximum.
Hence , the maximum value of the function is y = 27/64, which occurs at x = 5π/3 + 2kπ/3, and the minimum value is y = -1/64, which occurs at x = π/3 + 2kπ/3
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Answer:
maximum: 0.25minimum: -2Step-by-step explanation:
You want the maximum and minimum values of the function ...
y = sin³(x) -sin⁶(x)
SolutionWhen we substitute sin³(x) = z, we have the quadratic expression ...
y = z -z² . . . . . a quadratic function
Adding and subtracting 1/4, we can put this in vertex form:
y = -(z -1/2)² +1/4
MaximumThis version of the function describes a parabola that opens downward and has a vertex at (z, y) = (1/2, 1/4). The y-value of the vertex represents the maximum value of the function.
The maximum value of y is 1/4.
MinimumThe sine function is a continuous function with a range of [-1, 1]. Then z will be a continuous function of x, with a similar range. We already know that y describes a function of z that is a parabola opening downward with a line of symmetry at z = 1/2. This means the most negative value of y will be found at z = -1 (the value of z farthest from the line of symmetry). That value of y is ...
y = (-1) -(-1)² = -1 -1 = -2
The minimum value of y is -2.
__
Additional comment
The range of y is confirmed by a graphing calculator.
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The number of visits to public libraries increased from 1.5 billion in 1991 to 1.7 billion in 1996. Find the average rate of change in the numb
of public library visits from 1991 to 1996.
The average rate of change between 1991 and 1996 was
(Simplify your answer. Type an integer or a decimal.)
Save
billion
The average rate of change between 1991 and 1996 is 40 million
How to determine the average rate of change between 1991 and 1996?The given parameters are:
Population in 1991 = 1.5 billion
Population in 1996 = 1.7 billion
The average rate of change between 1991 and 1996 is calculated as:
Rate = (1.7 billion -1.5 billion)/(1996 - 1991)
Evaluate
Rate = 40 million
Hence, the average rate of change between 1991 and 1996 is 40 million
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The Blue Ridge parkway is 469 miles long. The parkway is a road that runs through 29 Virginia and North Carolina counties. Sam drove 2/5 of the parkway on vacation. How many miles did he drive? Simplify your answer and said it as a mixed number
187.6miles
Step-by-step explanation:
blue ridge parkway is 469miles
sam drove 2/5 of the parkway
2/5×469
=469×2/5
938/5
187.6miles
a pizza parlor offers 16 different toppings. how many 5 topping pizzas are possible
Please help i need it!!!!!
A 6 N crate is lifted 2 meters. How much work is done?
A) 12 N/m
B) 4 N/m
C) 8 N/m
D) 3 N/m
The amount of work done is Option A) 12 N/m
What is work done?Work done is simply defined as the product of the magnitude of displacement, (d) and the component of the force that in the direction of displacement.
It measures energy transfer that occurs when an object is moved to a distance by an external force which is applied in the direction of the displacement.
Work done on a body is equivalent to the increase in the energy of the body, because it transfers energy to the body.
The formula for work done is;
W = fd
Where, 'f' is the applied force and d is the distance
Substitute the values
Work done = 6(2)
Work done = 12 N/m
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For each image, determine if you have enough information to find the missing lengths. If so, find them. If not, explain why. 1. DE is parallel to AC. Find the lengths of DE || AC AC and AD. B 2 D t 5 E 6
The length of AC is 12.5 and the length of AD is 3.
What are triangles?A triangle is a three-sided polygon because it has three edges and three vertices. The most important attribute of a triangle is the sum of its internal angles to 180 degrees
Given triangle ABC,
and D is a point on AB and E is a point on AC,
and forms a triangle ADE,
and DE is parallel to AC,
taking ΔABC and ΔBDE
∠B = ∠B (common angle)
because DE is parallel to AC, so corresponding angles are equal,
so ∠A = ∠D
and ∠C = ∠E
ΔABC ≈ ΔBDE (triangles are similar)
since both triangles are similar the ratio of their corresponding sides is equal,
AB/BD = AC/DE = BC/BE
given BD = 2, BE = 4, DE = 5 and EC = 6
BC = EC + BE = 4 + 6
BC = 10
AC/DE = BC/BE
AC = 5(10/4)
AC = 12.5
and AB/BD = BC/BE
AB = 2(10/4)
AB = 5
AD = AB - BD
AD = 5 - 2
AD = 3
Hence AC = 12.5 and AD = 3.
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The figure is in image.
A T-shirt stand on the boardwalk recently sold 6 purple shirts and 9 shirts in other colors. What is the experimental probability that the next shirt sold will be purple?
Answer:
2/5.
Step-by-step explanation:
To find the denominator, you add all of the times the experiment has been done.
6 + 9 = 15.
Then, since they're asking about purple shirts, you put that as the numerator.
Making it 6/15.
To simplify, divide both sides by 3, making it 2/5 simplified.
The solution is, 2/5 is the experimental probability that the next shirt sold will be purple.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
To find the denominator, you add all of the times the experiment has been done.
6 + 9 = 15.
Then, since they're asking about purple shirts, you put that as the numerator.
Making it 6/15.
To simplify, divide both sides by 3, making it 2/5 simplified.
Hence, The solution is, 2/5 is the experimental probability that the next shirt sold will be purple.
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How many months dose it take to pay off 160,000 paying 677 a month
160,000 / 677 = 293.88 months
Hope this helps.
Find the midpoint M of the two sets of points
x(9,5) Y(-2, 3)
Answer:
(3.5,4)
Step-by-step explanation:
add and divide by 2
(7,8)
(3.5,4)
plsss mark me brainliesttttt
The larger of two numbers is 4 more than 2 times the smaller number. If the sum of the two numbers is 28, what is the larger number
Answer:
The larger number is 20.
Step-by-step explanation:
Let x and y be the two numbers.
y = 2x + 4
x + y = 28
So x + 2x + 4 = 28
3x = 24
x = 8
y = 20
At 50 minutes how far is the winning runner use ur equations
Answer:
3.5 km
Step-by-step explanation:
0.7 inches, 0.762 inches, 0.079 inches, and 0.7091, place in order from smallest to largest...
The order from smallest to largest is 0.079 inches, 0.7 inches, 0.7091 inches, 0.762 inches.
What is a sequence?
A Sequence is a set of things (usually numbers) that are in order. Each number in the sequence is called a term (or sometimes "element" or "member"), read Sequences and Series for a more in-depth discussion.
To arrange the given numbers in order from smallest to largest, we can simply compare them to each other and order them accordingly:
0.079 inches < 0.7 inches < 0.7091 inches < 0.762 inches
Therefore, the order from smallest to largest is 0.079 inches, 0.7 inches, 0.7091 inches, 0.762 inches.
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Give the position of C on this number line.
Answer:
5/6
Step-by-step explanation:
There are 6 points (discounting the one at the beginning for 0). That means it's fractions of 6. Point C is on the 5th point, meaning it's 5/6ths of the way to 1, meaning that point C is, indeed, 5/6th.
What is the slope of the line represented by the equation 2x+3y= -12?
-3/2
-2/3
2/3
3/2
Will give brainliest if your answer is correct, please help me with this question it is past due (I have more questions like this that are also pat due, check my profile and go to questions to see them once I post the questions)
Answer:
∠1 = ∠3 = ∠5 = ∠7 = 72°
∠2 = ∠4 = ∠6 = ∠8 = 180° -72° = 108°
∠13 = ∠14 = ∠15 = ∠16 = ∠17 = ∠18 = ∠19 = ∠20 = 90°
∠10 = ∠12 = 90° -72° = 18°
∠9 = ∠11 = 180° -18° = 162°
Step-by-step explanation:
What Expression is equivalent to *
-1/2 (4x + 12)
ach ant has 6 legs. How many legs do 3 ants have?
Ants 1 2 3
Legs 6 ?
Answer:
Step-by-step explanation:
the answer is 18 I think?
Answer:
18
Step-by-step explanation:
6 (legs) x 3 (ants) = 18 legs
It can also be represented as 6+6+6 (18)
hope this helps :)
Desmond is 5 inches taller than Niki.
If we let
represent Niki's height in inches, write an algebraic expression for Desmond's height.
A certain disease has an incidence rate of 0.8%. If the false negative rate is 6% and the false positive rate is 3%, compute the probability that a person who tests positive actually has the disease.
The probability that a person who tests positive actually has the disease is approximately 0.194.
What exactly is probability?
Probability is a measure of an event's possibility or chance of occurring. It is stated as a number between 0 and 1, with 0 indicating an impossible event and 1 indicating a certain event. Probabilities ranging from 0 to 1 reflect occurrences that are probable but not guaranteed.
P(A) denotes the probability of an event A as the ratio of the number of possibilities that favour event A to the total number of potential outcomes. In other words, it is the number of possible outcomes for event A divided by the total number of possible outcomes.
Now,
To compute the probability that a person who tests positive actually has the disease, we can use Bayes' theorem, which states that:
P(A|B)=P(B|A)*P(A)/P(B)
where A and B are events, P(A | B) is the probability of event A when event B has occurred, P(B | A) is the probability of event B when event A has occurred, P(A)= prior probability of event A, and P(B) = prior probability of event B.
In this case, let A be the event of having the disease and B be the event of testing positive.
The incidence rate of the disease is 0.8%, which means that P(A) = 0.008.
The false negative rate is 6%, which means that P(B' | A) = 0.06 (where B' is the complement of event B, i.e., testing negative given that the person has the disease).
The false positive rate is 3%, which means that P(B | A') = 0.03 (where A' is the complement of event A, i.e., not having the disease).
We can compute P(B) using the law of total probability:
P(B) = P(B|A)*P(A) + P(B|A')*P(A')
= (1-P(B'|A))*P(A)+P(B|A')*(1-P(A))
= (1 - 0.06) * 0.008 + 0.03 * (1 - 0.008)
= 0.0328
Now we can use Bayes' theorem to compute P(A | B):
P(A | B) = P(B | A) * P(A) / P(B)
= (1 - P(B' | A)) * P(A) / P(B)
= (1 - 0.06) * 0.008 / 0.0328
= 0.194
Therefore,
the probability will be 0.194.
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How do u solve 2/8=4
Answer:
8/8 (then entire number) is 16
Step-by-step explanation:
4/2 = 2
2x8=16
so 8/8=16
Mark invests $150 at the beginning of each quarter in stock ABC. According
to the table below, how many shares of ABC will Mark own at the end of the
year?
ABC
Stock Price
Q1
$15
Q2
$16
Q3
$13
Q4
$18
D
A. 36 shares
B. 44 shares
C. 40 shares
D. 38 shares
A quarter is when something is divided into 4 equal parts. The correct option is D.
What is a Quarter ?A quarter is when something is divided into 4 equal parts , A year has a quarter of 3 months.
It is given that Mark Invests $150 at the beginning of each quarter in stock ABC.
According to the data given
In Q1, the price of the share is $15
150/15 = 10 shares
In Q2, the price of the share is $16
150/16 = 9 shares approx
In Q3, the price of the share is $13
150/13 = 11 approx
In Q4, the price of the share is $18
15/18 = 8
Therefore, the total shares = 10+9+11+8 = 38 shares approx.
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(a) A company that makes crayons is trying to decide which colors to include in a promotional mini-box of crayons. The company can choose the mini-box colors from its collection of colors. How many mini-boxes are possible?
Complete Question
The complete question is shown on the first uploaded image
Answer:
The number of color are possible \(\left n} \atop }} \right. C _r = 1215450\)
Step-by-step explanation:
From the question we are told that
The number of colors is r = 4
The sample size n = 75
The number of color that are possible can be mathematically evaluated as
\(\left n} \atop }} \right. C _r = \frac{n !}{ (n-r)! r!}\)
substituting values
\(\left n} \atop }} \right. C _r = \frac{75 !}{ (75-4)! 4!}\)
\(\left n} \atop }} \right. C _r = \frac{75 !}{ (71)! 4 !}\)
\(\left n} \atop }} \right. C _r = \frac{75 *74 * 73* 72 * 71!}{ (71)! (4*3*2 *1)}\)
\(\left n} \atop }} \right. C _r = 1215450\)
The longest high-voltage line in the world, NorNed, connecting the Netherlands and Norway, is 580 km long. The length of the pipeline, which costs 600 million euros, 47 thousand tons, is also gigantic. Imagine a wire going around the Earth along the equator. By how many meters should this pipeline be extended if we want to run it 10 kilometers higher at each point? During the solution, you can calculate that the Earth is a sphere with a radius of 6371 kilometers. Round your answer to a whole value!
the pipeline needs to be extended by approximately 40,020 km.
What are Distance?
The distance an object travels in athe predetermined period of time. Here is a word equation that illustrates the connection between space, speed, and time: velocity is calculated by dividing the total Distance traveled by the journey time.
To find the additional length of the pipeline needed to raise it by 10 km at each point, we need to calculate the length of the new circle formed by the pipeline.
The radius of the Earth is 6371 km, and we want to raise the pipeline by 10 km at each point. This means that the new radius of the Earth will be 6371+10 = 6381 km.
The circumference of a circle is given by the formula C = 2πr, where r is the radius of the circle. So the circumference of the new circle formed by the pipeline will be:
C = 2π(6381) = 40,075 km
The original length of NorNed is 580 km. To find out how many times longer the new pipeline needs to be, we divide the new circumference by the original length:
40,075 km / 580 km ≈ 69.2
So the pipeline needs to be extended by approximately 69 times its original length.
To find the additional length of the pipeline needed, we subtract the original length of 580 km:
69 × 580 km = 40,020 km
Therefore, the pipeline needs to be extended by approximately 40,020 km.
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Simplify (w3)4•(w5)2
Answer:
\(w^{22}\)
Step-by-step explanation:
\((w^3)^4\cdot(w^5)^2=w^{3*4}\cdot w^{5*2}=w^{12}\cdot w^{10}=w^{12+10}=w^{22}\)
A cube shaped box with 9 centimeter edges is used
for shipping glass figurines. What is the surface
area of the box?
A. 54 in2
B. 108 in2
C. 324 in2
D. 486 in
What is the range when f is given as ordered pairs?
Given A \(= \{a,b,c,d\}A={a,b,c,d} and B = \{c,d,e,f,g\}B={c,d,e,f,g} .\)
\(R_1 = \{(a,c), (b,d), (c,e)\}, R_2 = \{(a,c), (a,g), (b,d), (c,e), (d,f)\}, \\ R_3 = \{(a,c), (b,d), (c,e), (d,f)\}\)
A relation is a function when every element of set A has image in B and a element of set A can-not have more than one image in set B.
So, Relation \(R_3\) is a function.
(c) Given \(f\) is a real valued function defined by \(f(x) = x^2 - 9\).
(I) Function is defined for all real values of \(x\). Hence,
Domain of \(f=R\)
(ii) Now, as \(x^2 \geq 0\) \(\implies\) \(x^2-9 \geq -9x\)
Hence, Range of f=[−9,∞)
(iii) Representation of \(f\) as a set of ordered pair = \(\{ (x,x^2-9) : x \in R\}\)
Ivan bought a desk on sale for $179.20. This price was 32% of the original price.
Answer:
Below
Step-by-step explanation:
I suppose you are looking for the ORIGINAL price
x = original
32% is .32 in decimal
so .32 * x = $ 179.20
x = 179.20/.32 = $ 560.
Reuben made a shirt using 7/8yards of red fabric and 1/4yards of yellow fabric. How many more yards of red fabric did Reuben use?
Answer and Step-by-step explanation:
To find out how many more yards of red fabric Reuben used, we need to subtract the amount of yellow fabric from the amount of red fabric. Since the two fractions have different denominators, we need to find a common denominator before subtracting them. The least common multiple of 8 and 4 is 8, so we can rewrite both fractions with a denominator of 8:
7/8 - 1/4 = 7/8 - (1/4) * (2/2) = 7/8 - 2/8 = (7 - 2)/8 = 5/8
So, Reuben used 5/8 yards more red fabric than yellow fabric.