Answer:8/25
Step-by-step explanation:
Answer:
Step-by-step explanation:
32/100 = 16/50 = 8/25
When planning a well-balanced long hair design, consider the proportional relationships between size, shape, texture and:
A well-balanced long hair design should consider the proportional relationships between size, shape, texture, and color to create a harmonious and visually pleasing hairstyle that flatters the client's features and personal style.
When planning a well-balanced long hair design, it is important to consider the proportional relationships between size, shape, texture, and color. These four elements work together to create a harmonious and visually pleasing hairstyle.
Size refers to the overall scale of the hairstyle, which can range from small and delicate to large and voluminous. It's important to consider the size of the client's head and face, as well as the desired level of impact.
Shape refers to the outline or silhouette of the hairstyle, which can be angular or rounded, symmetrical or asymmetrical. The shape should be chosen to flatter the client's face shape and features, as well as to create a balanced overall look.
Texture refers to the surface quality of the hair, which can be smooth or rough, sleek or tousled. Texture can be used to add interest and movement to the hairstyle, and should be chosen to complement the client's natural hair texture and the overall design.
Color refers to the hue, saturation, and tone of the hair, which can range from natural to bold and vibrant. Color can be used to enhance the shape and texture of the hairstyle, and should be chosen to flatter the client's skin tone and personal style.
In summary, a well-balanced long hair design should consider the proportional relationships between size, shape, texture, and color to create a harmonious and visually pleasing hairstyle that flatters the client's features and personal style.
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A financial analyst wants to set up a hypothesis test to determine if the mean yearly salaries of teachers, tutors, and professors are the same. What would be the correct setup for the null and alternative hypotheses for this test
Null hypothesis (H0): There’s no effect in the population. Alternative hypothesis (Ha or H1): There’s an effect in the population.
Which null and alternative hypotheses are correct?The null and alternative hypotheses are two opposing ideas that researchers use a statistical test to analyze evidence for and against: The null hypothesis (H0) states that there is no influence in the population. Alternative hypothesis (Ha or H1): There is a population effect.
Identify the null and alternative hypotheses.
As well as the sample size, specify.
Choose a suitable statistical test.
Gather information (note that the previous steps should be done prior to collecting data)
Based on the sample data, compute the test statistic.
Examine the null hypothesis, usually indicated by H0.
Always write the alternative hypothesis, which is usually marked by Ha or H1, with less than, greater than, or not equals symbols, i.e., (,>,or).
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in july, clare rode her bike 15 miles in 72 minutes, at her constant speed. a how long did it take her to ride 10 miles? show or explain your thinking. quizzes
To find the time it took Clare to ride 10 miles, we can use the concept of speed, which is defined as distance divided by time. In this case, Clare's constant speed was 15 miles in 72 minutes, so her speed is 15/72 miles per minute.
Using this speed, we can calculate the time it took her to ride 10 miles by dividing the distance by the speed:
Time = Distance / Speed
Time = 10 miles / (15/72 miles per minute)
Time = 10 * 72 / 15 minutes
Time = 43.2 minutes
So, it took Clare approximately 43.2 minutes to ride 10 miles at her constant speed of 15 miles in 72 minutes.
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To convert 75 minutes to hours, you would use the ratio 1 hour/
60 minutes
O A. True
B. False
Answer: False
Step-by-step explanation: 75 min does not = 1 hour or 60 min you would need 1 hour and 15 min
Multiply. Express your answer in simplest form.
11 1/7 × 4 2/7
What is the factor of x³ 3x² 9x 5?
(x+1) & (x-5) are the factors of given equation.
The given Equation is,
x3- \(3x^{3}\) - 9
Substitute - Substitute means to put something in the place of another and in mathematics substitution means putting numbers in the place of letters. It is used to calculate the value of an expression.Here, If we substitute x =5, in the given equation, then we find
(5)3 - 3(5)3 - 9*5 -5 = 0
x-5 is factor of given equation to find another factor dividing given equation by x-5
we will get =(x2+2x+1) after dividing the equation by x - 5
Hence x3- \(3x^{3}\) - 9 =(x2+2x+1) (x-5)
=(x+2)2 (x-5)
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John has a box of nails. The box contains 65 small nails, 40 medium nails, and 45 large nails. Susan has a box of nails that has the same proportion of small, medium, and large nails as John's box. There are 176 medium nails in Susan's box. What is the total number of nails in Susan's box?
Answer:
The total number of nails in Susan's box is 660 nails
Step-by-step explanation:
The given parameters are;
The number of small nails in John's box = 65
The number of medium nails in John's box = 40
The number of large nails in John's box = 45
The number of medium nails in Susan's box = 176
The ratio of the nails in John's box is given as follows;
The ratio of small nails in John's box = 65/(65 + 40 + 45) = 13/30
The ratio of medium nails in John's box = 40/(65 + 40 + 45) = 4/15 = 8/30
The ratio of large nails in John's box = 45/(65 + 40 + 45) = 3/10 = 9/30
Given that the proportion of the nails in John's box and Susan's box are the same, we have;
The ratio of medium nails in Susan's box = 8/30
Therefore;
Where the total number of nails in Susan's box = X, we have;
8/30 × X = 176
X = 176 × 30/8 = 660 nails
The total number of nails in Susan's box = 660 nails.
Using proportions, it is found that the total number of nails in Susan's box was 660.
---------------
John had 65 + 40 + 45 = 150 nails.The proportion of medium nails is: \(\frac{40}{150}\)Susan's box has x nails.Of those nails, 176 are medium. Thus, the proportion of medium nails out of the total in Susan's box is of: \(\frac[176}{x}\)---------------
Since the proportions are equal:
\(\frac{40}{150} = \frac{176}{x}\)
\(40x = 150\times176\)
\(x = \frac{150\times176}{40}\)
\(x = 660\)
The total number of nails in Susan's box was 660.
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Can someone help me out on this?
Answer:
19/20
Step-by-step explanation:
1/5=0.20
hope that makes sense
show all work
7. A conical tank with equal base and height is being filled with water at a rate of 2 m/min. How fast is the height of the water changing when the height of the water is 7m. As the height increases,
When the water is 7 meters high, it is changing height at a rate of about 0.019 meters per minute.
To find how fast the height of the water is changingWe need to use related rates and the volume formula for a cone.
V as the conical tank's water volume
h is the measurement of the conical tank's water level
The conical tank's base has a radius of r
The volume of a cone can be calculated using the formula: V = (1/3)πr²h.
Given that the base and height of the conical tank are equal, we can write r = h.
Differentiating the volume formula with respect to time t, we get:
dV/dt = (1/3)π(2rh dh/dt + r² dh/dt).
Since r = h, we can simplify the equation to:
dV/dt = (1/3)π(2h² dh/dt + h² dh/dt)
= (2/3)πh² dh/dt (Equation 1).
Assuming that the rate of water filling is 2 m/min, dh/dt must equal 2 m/min.
Finding dh/dt at h = 7 m is necessary because we want to know how quickly the water's height is changing.
Substituting the values into Equation 1:
2 = (2/3)π(7²) dh/dt
2 = (2/3)π(49) dh/dt
2 = (98/3)π dh/dt
dh/dt = 2 * (3/(98π))
dh/dt ≈ 0.019 m/min.
Therefore, When the water is 7 meters high, it is changing height at a rate of about 0.019 meters per minute.
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it's the 99th day of autumn and the first leaf has fallen! if the number of leaves on the ground is tripling with each passing day, what is the total number of leaves that have fallen to the ground by the end of the 2424th day of autumn?
By the end of the 24th day of autumn, there is exactly 1,594,323 number leaf total on the ground.
What are numbers?A number is an arithmetic value that is used to calculate and represent a quantity. Numerical symbols, such as "3," are written to represent numbers. A number system is a logical way of writing numbers that use digits or symbols to represent them.So, let uscalculate the total number of leaves as follows:
A number of leaves on day 1.
= 1A number of leaves on day 2.
= 1*3= 3A number of leaves of day 3.
= 3*3= 9A number of leaves on day 4.
= 9*3= 27A number of leaves on day 5.
= 27*3= 81A number of leaves on day 6.
= 81*3= 243A number of leaves of day 7.
= 243*3= 729A number of leaves on day 8.
= 729 * 3= 2187A number of leaves on day 9.
= 2187 *3= 6561A number of leaves on day 10.
= 6561 * 3= 19683A number of leaves on day 11.
= 19683 * 3= 59049A number of leaves on day 12.
= 59049 *3= 177147A number of leaves on day 13.
= 531441The total number of leaves after the 24th day: 1,594,323No of leaves that fall daily on the first day: 1No of days leaves falls 14 days.Therefore, by the end of the 24th day of autumn, there is exactly 1,594,323 number leaf total on the ground.
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There were 6 biscuits in each box. how many biscuits are there in 7 boxes?
There was 42 biscuits in the boxes
The slope of the line going through the ordered pairs (12, -7) and (-9, 3) is −1021. true or false
Answer:
Use the slope formula to find the slope of a line given the coordinates of two points on the line. The slope formula is m=(y2-y1)/(x2-x1), or the change in the y values over the change in the x values.
The answer is true
10. Which expression is equivalent to t+4+3-2.2t?
A 1.2t+7
B-1.2t+7
5.8t
D 10.2t
Answer: B
Step-by-step explanation:t+4+3−2.2t
Add 4 and 3 to get 7.
t+7−2.2t
Combine t and −2.2t to get −1.2t.
−1.2t+7
A 95% confidence interval for the proportion of young adults who skip breakfast is 0.20 to 0.27. Which of the following is the correct interpretation of the 95% confidence interval?
a. There is a 95% probability that the proportion of young adults who skip breakfast is between 0.20 and 0.27.
b. If this study were to be repeated with a sample of the same size, there is a 95% probability that the sample proportion would be between 0.20 and 0.27.
c. We can be 95% confident that the proportion of young adults in the sample who skip breakfast is between 0.20 and 0.27.
d. We can be 95% confident that the proportion of young adults in the population who skip breakfast is between 0.20 and 0.27.
b. If this study were to be repeated with a sample of the same size, there is a 95% probability that the sample proportion would be between 0.20 and 0.27.
ung adults who skip breakfast is between 0.20 and 0.27.
The correct interpretation of the 95% confidence interval is c. We can be 95% confident that the proportion of young adults who skip breakfast is between 0.20 and 0.27.
This means that if we were to repeat the study multiple times, we would expect 95% of the resulting confidence intervals to contain the true proportion of young adults who skip breakfast.
It does not mean that there is a 95% probability that the true proportion falls between 0.20 and 0.27 (option a) since the true proportion either is within that range or it is not. Also, the confidence interval is about the population parameter (the proportion of young adults who skip breakfast), not the sample statistic (the sample proportion) as stated in option b.
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The response earned 6 points: 3 points in part (a), no points in part (b), 2 points in part (c), and 1 point in part (d). In part (a) the student uses the initial condition f (−2) with an appropriate definite integral ( ) 2 6 f x dx − − ′ ∫ to find f (− = 6 3. ) Thus, the student earned the first and second points. The student uses f (−2) again with an appropriate definite integral ( ) 5 2 f x dx − ′ ∫ to find f (5 10 2 . ) = − π The student earned the third point. In part (b) the student presents two intervals, [−6, 2) and (2, 5 .) Because f x ′( ) < 0 on (−2, 2 ,) f is decreasing on [−2, 2 .] The student is not eligible to earn any points because of the presence of an interval containing points where f x ′( ) < 0. Thus, the student did not earn any points. In part (c) the student investigates where f x ′( ) = 0 and identifies f ′(−2) and f ′(2 .) The student earned the first point for considering x = 2. The student identifies the absolute minimum value as 7 2. − π The student justifies by evaluating f x( ) at the critical values and endpoints. The student earned the second point. In part (d) the student identifies f ′′(−5) as the derivative of f x ′( ) at x = −5 and finds ( ) 1 5 . 2 f ′′ − =− The student earned the first point. The student states that f ′′(3) does not exist. The student uses two one-sided limits at x = 3. The student states that " f x( ) is not differentiable at x = 3, " which contradicts the given statement in the problem that f is differentiable on the closed interval [−6, 5 .] The student did not earn the second point.
The student earned a total of 6 points by correctly using definite integrals to find f(-2) and f(2), identifying the critical values and absolute minimum value of f(x) and finding f''(-5).
The student earned a total of 6 points in the problem. They earned 3 points in for using an appropriate definite integral to find f(-2), and another point for using a definite integral to find f(2). They did not earn any points.
In next part, they earned 2 points for identifying where f'(x) = 0, and identifying the absolute minimum value of f(x) at x=2. In part (d), they earned 1 point for finding f''(-5), but did not earn the second point due to a contradiction in their reasoning about the differentiability of f(x) at x=3.
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A physical therapist has 2400 minutes available for patients next week,
Patients have already made appointments for 1490 minutes. If the variable p
stands for the time the physical therapist has left, which units could apply to
that variable?
Answer: 910 minutes
Step-by-step explanation:
Since the physical therapist has 2400 minutes available for patients next week, and the patients have already made appointments for 1490 minutes, then the time that the physical therapist has left will be:
p + 1490 = 2400
p = 2400 - 1490
p = 910
Therefore, the physical therapist will have 910 minutes left
What is the probability of rolling a number cube and getting a number greater than four?
2s 5s + 3t Let W be the set of all vectors of the form B Show that W is a subspace of R4 by finding vectors u and v such that W = Span{u,v}. 4s - 5t 2t Write the vectors in W as column vectors. 2s 5s + 3t EM = su + tv 45-50 2t What does this imply about W? O A. W=s+t OB. W=U + V OC. W = Span{u, v} OD. W = Span{s,t} Explain how this result shows that W is a subspace of R4. Choose the correct answer below. O A. Since s and t are in R and W = u + v, W is a subspace of R4. B. Since s and t are in R and W = Span{u,v}, W is a subspace of R4. OC. Since u and v are in R4 and W = Span{u,v}, W is a subspace of R4. D. Since u and v are in R4 and W = u + V, W is a subspace of R4.
Since W satisfies all three conditions, it is a subspace of R4. And since we have shown that W = Span{u, v}, we can choose answer (C): "Since u and v are in R4 and W = Span{u, v}, W is a subspace of R4."
What is sub space?
In mathematics, a subspace is a subset of a vector space that is itself a vector space under the same operations of vector addition and scalar multiplication as the original space.
To show that W is a subspace of R4, we need to show that it satisfies three conditions:
The zero vector is in W.
W is closed under vector addition.
W is closed under scalar multiplication.
First, let's find vectors u and v such that W = Span{u,v}. We are given that a vector B in W has the form:
B = (2s + 5s + 3t, 4s - 5t, 2t, 45-50)
We can rewrite this as:
B = (7s, 4s, 0, 45-50) + (3t, -5t, 2t, 0)
So, we can take u = (7, 4, 0, -5) and v = (3, -5, 2, 0) to span W.
Now, let's check the three conditions:
The zero vector is in W:
Setting s = t = 0 in the expression for B gives us the vector (0, 0, 0, -5). This vector is in W, so the zero vector is in W.
W is closed under vector addition:
Let B1 and B2 be two vectors in W. Then, we have:
B1 = su1 + tv1 = a1u + b1v
B2 = su2 + tv2 = a2u + b2v
where a1, b1, a2, b2 are scalars.
Then, B1 + B2 is given by:
B1 + B2 = su1 + tv1 + su2 + tv2
= (a1u + b1v) + (a2u + b2v)
= (a1 + a2)u + (b1 + b2)v
which is also in W, since it can be expressed as a linear combination of u and v.
W is closed under scalar multiplication:
Let B be a vector in W and let k be a scalar. Then, we have:
B = su + tv = au + bv
where a, b are scalars.
Then, kB is given by:
kB = k(su + tv)
= (ks)u + (kt)v
which is also in W, since it can be expressed as a linear combination of u and v.
Therefore, since W satisfies all three conditions, it is a subspace of R4. And since we have shown that W = Span{u, v}, we can choose answer (C): "Since u and v are in R4 and W = Span{u, v}, W is a subspace of R4."
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Petra is making donuts by stamping circles in dough using a pastry stamp with a diameter of 3 inches. For the donut hole, she stamps out a circle using a pastry stamp that has a diameter of 1 inch.
How many square inches of dough are left to make the donut after the hole has been removed?
Answer:
2 inches would be left
Step-by-step explanation:
The expected value for getting heads, on 30 coin tosses, is 15. The
expected value for rolling a 1, after 30 die rolls is 5. What is the
expected value of the sum of these events? Enter your answer in the
box.
The expected value of the sum of these events will be 2 / 3.
What is probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favourable outcomes / Number of sample
Given that the expected value for getting heads, on 30 coin tosses, is 15. The expected value for rolling a 1, after 30 die rolls is 5.
The probability of the sum will be calculated as,
P = ( 15 / 30 ) + ( 5 / 30 )
P = ( 20 / 30 )
P = 2 / 3
Therefore, the expected value of the sum of these events will be 2 / 3.
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How many times does 65 go into 468?
Answer:
7 whole times, 7.2 decimal times
Step-by-step explanation:
Divide the numbers
What is the slope of the line parellel to this line -9x+3y=6
Answer: 3
Step-by-step explanation:
Adam purchased some items at the school store. He bought 3 pencils for $0.15 each and 5 single-subject notebook
If these items cost a total of $6.45, what was the cost of each notebook?
O A. $1.20
B. $1.26
O c. $1.29
OD. $1.38
Answer:
The answer is A
Step-by-step explanation:
Fist multiply 3 and .15 to get .45 for 3 pencils. Then subtract .45 from 6.45 and get 6. Then divided 6 by 5 to get 1.2 for each book
i think the answer is a: $1.20
my work:
3 x 0.15 = 0.45.
6.45 - 0.45 = 6.00
6.00 / 5 = 1.20
and i checked my work by doing 1.20 x 5 + 0.40 = $6.45.
An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated. (a) Draw the possibility diagram of the product of the two numbers appearing on the die in each throw (b) Use the possibility diagram to calculate the probability that the product of the two numbers is (i) A prime number (ii) Not a perfect square (iii) A multiple of 5 (iv) Less than or equal to 21 (v) Divisible by 4 or 6
Answer:
this question is roung
f(x)=g(x)
f(x)=-¾x²+3x+1
g(x)=(sqrt x)-1
what is the solution to f(x)=g(x)
1. x=0
2. x=1
3. x=2
4. x=4
Answer:
(d) x = 4
Step-by-step explanation:
You want the solution to the system of equations using the given graph.
f(x) = -3/4x² +3x +1g(x) = (√x) -1f(x) = g(x)GraphThe solution to the equation f(x) = g(x) is the x-coordinate of the point(s) on their graphs where the curves intersect.
The graph shows the point of intersection of the two functions is (4, 1). This is the solution you have marked in the supplied image.
x = 4
<95141404393>
Calculate the total percentage of the shaded
region in both circles.
Answer:
80%
Step-by-step explanation:
Total area is the area of two circles. Each circle if accepted as a unit, in total it equals to 2 units.
Shaded area:
1 + 3/5 = 8/5Percentage of shaded area compared to total:
8/5 ÷ 2 = 4/5 = 0.8 =80%Answer: 80% of all region is shaded
A mouse pushes a block of cheese across the floor with 4 N of force. How many meters did the mouse travel if she did 16 J of work?
The mouse traveled 4 meters while pushing the block of cheese with 4 N of force if she did 16 J of work.
What is equations?An equation is a mathematical statement that shows that two expressions are equal. Equations typically consist of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division.
According to the given information:We know that work (W) is equal to force (F) times distance (d) in the direction of the force, so we can use the formula:
W = F x d
To find the distance traveled (d), we need to rearrange the formula:
d = W / F
Plugging in the values we have:
d = 16 J / 4 N
d = 4 meters
Therefore, the mouse traveled 4 meters while pushing the block of cheese with 4 N of force, if she did 16 J of work.
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The 10 decimal digits, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are arranged in a uniformly random per- mutation. We denote by a the integer formed in base 10 by the first five positions in this permutation and by b the integer formed in base 10 by the last five positions in this permuta- tion (either a or b may begin with 0 which in such a case is ignored). For example, if the random permutation is 8621705394 then a = 862, b = 175, and c = 394. Consider the probability space whose outcomes are these random permutations and a random variable X defined on this probability space such X = 1 when the product xyz is even and X = 0 when that product is odd. Required:
Calculate E[X].
Random permutations and a random variable X are defined on this probability space such as X = 1 when the product XYZ is even and X = 0 when that product is odd. \(E[X] = \[\frac{53}{63}\]\)
To determine the expected value of the random variable X given the permutation of 10 decimal digits, we will find the probability of the random variable X being odd or even. If the product XYZ is odd, then X is odd, otherwise, X is even.
Consider A be the event that x is odd, B be the event that y is odd and C be the event that z is odd. The probability of A occurring is:
\(P(A) = \[\frac{5}{9}\]\)
since there are 5 odd digits out of the 9 remaining after any digit is chosen as the first digit in x.
, \(P(B) = \[\frac{4}{7}\]\)
since there are 4 odd digits out of the 7 remaining after any digit is chosen as the first digit in y.
Also, \(P(C) = \[\frac{3}{6}\]\)
Since there are 3 odd digits out of the 6 remaining after any digit is chosen as the first digit in z.
Therefore, P(A ∩ B ∩ C) is the probability of the product being odd which is given as:
P(A ∩ B ∩ C) = P(A) × P(B) × P(C)
\(= \[\frac{5}{9}\] \times \[\frac{4}{7}\] \times \[\frac{3}{6}\]\)
= 10/63
Thus, the probability of the product being even
P(A ∩ B ∩ C)¯ = 1 − P(A ∩ B ∩ C) = 1 − 10/63= 53/63
Therefore, the expected value of X is given as:
\(E[X] = (0 \times \[\frac{10}{63}\]) + (1 \times\[\frac{53}{63}\])\)
= 53/63
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Help I need to answer this question now ASAP
Answer:
-5
0
0.9
-1.3
Step-by-step explanation:
comment if u still need explanation :)
X + 2/3 = -5/6 solving equations
Answer: i think 3/3 is the answer to this