Answer:
335
Step-by-step explanation:
To convert meters to centimeters, move the decimal point two spaces to the right.
Answer:
335
Step-by-step explanation:
a centimeter is one hundredth of a meter so multiply 3.35x100
how many integer-valued solutions are there to each of the following equations and inequalities? , all , all , all , all , , all ,
a) The number of integer-valued solutions is 61, (b) the number of solutions is 62, (c) the number of solutions is 63, and (d) the number of solutions is 6.
a) The number of integer-valued solutions to x1 + x2 + x3 + x4 + x5 = 63, where all xi > 0, can be found using the stars and bars method. We want to find the number of ways to place 63 "stars" into 5 "bars", such that each bar has at least one star.
This is equivalent to the number of solutions to (x1 - 1) + (x2 - 1) + (x3 - 1) + (x4 - 1) + (x5 - 1) = 57, where all xi are non-negative integers. The number of solutions is given by the coefficient of x57 in the expansion of (x + 1)5, which is (5 + 57 - 1) choose (57) = 5 + 57 choose 57 = 61.
b) The number of integer-valued solutions to x1 + x2 + x3 + x4 + x5 = 63, where all xi ≥ 0, can be found using the same method as above. This is equivalent to the number of solutions to x1 + x2 + x3 + x4 + x5 = 63, where all xi are non-negative integers.
The number of solutions is given by the coefficient of x63 in the expansion of (x + 1)5, which is (5 + 63 - 1) choose (63) = 5 + 63 choose 63 = 62.
c) The number of integer-valued solutions to x1 + x2 + x3 + x4 + x5 ≤ 63, where all xi ≥ 0, can be found using the generating function method.
The generating function for the sequence of non-negative integers is given by (1 - x)^-1 = 1 + x + x^2 + x^3 + ... The coefficient of x^n in this series gives the number of solutions to x1 + x2 + x3 + ... + xk = n, where all xi are non-negative integers.
The coefficient of x^63 in (1 - x)^-1 is 1, and the coefficient of x^64 is 0, so there is only 1 solution where x1 + x2 + x3 + x4 + x5 = 63.
d) The number of integer-valued solutions to x1 + x2 + x3 + x4 + x5 = 63, where all xi ≥ 0, x2 ≥ 10, can be found by subtracting the number of solutions where x2 < 10 from the total number of solutions where all xi ≥ 0.
Let's call the number of solutions where x2 < 10 as S1 and the total number of solutions where all xi ≥ 0 as S2. Then, S2 - S1 = the number of solutions where x2 ≥ 10. To find S1, we use the stars and bars method as before, but now we need to place 53 stars into 4 bars since x2 must be at least 10.
The number of solutions is (4 + 53 - 1). Choose (53) = 56. To find S2, we use the generating function method as before. The number of solutions is (5 + 63 - 1). Choose (63) = 62. Thus, S2 - S1 = 62 - 56 = 6.
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--The given question is incomplete; the complete question is
"How many integer-valued solutions are there to each of the following equations and inequalities?
a) x1 + x2 + x3 + x4 + x5 = 63,all xi > 0
b) x1 + x2 + x3 + x4 + x5 = 63,all xi ≥ 0
c) x1 + x2 + x3 + x4 + x5 ≤ 63,all xi ≥ 0
d) x1 + x2 + x3 + x4 + x5 = 63,all xi ≥ 0, x2 ≥ 10"--
An art class has 63 minutes of painting for every 54 minutes of instruction. What is the basic ratio of minutes of painting to minutes of instruction
The basic ratio of minutes of painting to minutes of instruction is 7 : 6
What is the basic ratio of minutes of painting to minutes of instructionFrom the question, we have the following parameters that can be used in our computation:
Painting = 63 minutes
Instruction = 54 minutes
The ratio can be represented as
Ratio = Painting : Instruction
When the given values are substituted in the above equation, we have the following equation
Painting : Instruction = 63 : 54
Simplify
Painting : Instruction = 21 : 18
Simplify
Painting : Instruction = 7 : 6
This ratio cannot be simplified
Hence, the solution is 7 : 6
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I need help on these problems because I don’t really get it
a packing crate measures 4 feet by 12 feet by 7 feet. what is the area of its smallest side
Answer:
21 ft
Step-by-step explanation:
e
Use the parabola tool to graph the quadratic function f (x) = 2x2 - 4x + 6.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
The vertex of the parabola f(x) = 2x^2 - 4x + 6 is (1, 4)
How to graph the parabola?The function is given as:
f(x) = 2x^2 - 4x + 6
Differentiate the function
f'(x) = 4x - 4
Set to 0
4x -4 =0
So, we have:
4x = 4
Divide by 4
x = 1
Substitute x = 1 in f(x) = 2x^2 - 4x + 6
f(1) = 2(1)^2 - 4(1) + 6
This gives
f(1) = 4
This means that the vertex is (1, 4)
Next, we set x = 0.
So, we have:
f(0) = 2(0)^2 - 4(0) + 6
This gives
f(0) = 6
This means that the parabola passes through the point (0, 6)
See attachment for the parabola
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Graph a line with a slope of
−
2
5
−
5
2
minus, start fraction, 2, divided by, 5, end fraction that contains the point
(
−
3
,
5
)
(−3,5)
8 x
105 is how many times as great as 8 x 10-l?
10 4
10 6
10 -4
10 -6
Answer:
10 6
................
Which expression is equivalent to the quantity five raised to the negative second power times three raised to the fifth power end quantity all raised to the negative second power? three raised to the third power divided by five raised to the fourth power negative three raised to the third power divided by five raised to the fourth power five raised to the fourth power divided by three raised to the tenth power negative five raised to the fourth power divided by three raised to the tenth power
Answer:
(c) five raised to the fourth power divided by three raised to the tenth power
Step-by-step explanation:
You want the simplified version of the quantity five raised to the negative second power times three raised to the fifth power end quantity all raised to the negative second power.
Rules of exponentsThe relevant rules of exponents are ...
(ab)^c = (a^c)(b^c)
a^-b = 1/a^b
(a^b)^c = a^(bc)
ApplicationThe given expression can be simplified as follows:
\((5^{-2}3^5)^{-2}=5^{(-2)(-2)}3^{(5)(-2)}=5^43^{-10}=\boxed{\dfrac{5^4}{3^{10}}}\)
__
Additional comment
We find math expressions easier to understand when they are written using math notation, instead of words.
The temperature inside a cooling unit is measured in degrees Celsius, C. Josh wants to find out how cold it is in degrees Fahrenheit, F. Solve the formula C = (F-32) for F so that Josh can convert Celsius to Fahrenheit.
To convert Celsius to Fahrenheit, Josh needs to use the formula; F = (9/5)C + 32
Let C represent the degrees Celsius and F represent the degrees Fahrenheit.
The relationship between C and F is given as:
C = (F-32) × 5/9
Hence to convert Celsius to Fahrenheit, we make F the subject of formula:
C = (F-32) × 5/9
9C/5 = (F-32)
F = (9/5)C + 32
To convert Celsius to Fahrenheit, Josh needs to use the formula; F = (9/5)C + 32
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Answer:
Step-by-step explanation: This is one of the most common examples given in math textbooks, and it's useful to know if you ever travel outside the U.S., or if you are from outside the U.S. and travel here.
C = 5/9 (F - 32)
9C = 5(F - 32)
9/5 C = F - 32
9/5 C + 32 = F
F = 9/5 C + 32
I need some help with this
La empresa clarisse dedicada al rubro de telefónica, está ampliando su cobertura, debido a esto está colocando postes, donde la séptima parte de un poste está enterrada, y sobresale del suelo 25 metros. Calcular la altura del poste aproximado a los centímetros.
The approximate height of the pole in centimeters is 17,500 centimeters.
We have,
Let's start by calculating the total length of the pole, which is buried plus the part that protrudes from the ground.
We know that the part that protrudes is 25 meters and that it represents one-seventh of the total length.
25 = L/7
where L is the total length of the pole.
We can solve for L by multiplying both sides of the equation by 7:
L = 7 x 25
= 175 meters
Now we need to convert this length to centimeters.
Since 1 meter is equal to 100 centimeters,
175 meters x 100
= 17,500 centimeters
Therefore,
The approximate height of the pole in centimeters is 17,500 centimeters.
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The complete question.
The Clarisse company, dedicated to the telephone business, is expanding its coverage, due to this, it is placing poles, where the seventh part of a pole is buried, and protrudes 25 meters from the ground. Calculate the approximate height of the pole in centimeters.
what is the average of 12 14 and 16
Answer:
15
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
to find the average, add the numbers together, then multiply by the quantity.
12+14+16=42
42/3= 14
14 is the average
hope this helped <3333333333333333
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To encourage bulk buying, a company reduces the list price of $4,000 per unit by
three cents times the number of units bought. Write a function statement for the
company's revenue (R) from a particular distributor that buys x units.
R(x) =
The expression (4000 - 0.03x) represents the discounted price per unit when x units are purchased and multiplying by x gives the total revenue from selling x units at that price.
What is revenue?
Revenue can be defined as the total amount of income generated by the sale of goods and services related to the primary operations of the business.
The revenue (R) from a particular distributor that buys x units can be calculated using the following function statement:
R(x) = (4000 - 0.03x) * x
Where
4000 is the original list price per unit 0.03 is the discount per unit per unit purchased x is the number of units purchasedThe expression (4000 - 0.03x) represents the discounted price per unit when x units are purchased, and multiplying by x gives the total revenue from selling x units at that price.
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What is the inverse of each statement below: Be sure to label your
answers as a, b, c, and d.
a.) Add 25
b.) Divide -18
c.) Subtract 3
d.) Multiply 14
The term “inverse” in mathematics generally refers to an operation that undoes or reverses another operation. However, the phrase "inverse of maths tools" doesn't really make sense because “maths tools” is not a specific mathematical operation.
What is the inverse of maths tools?Mathematical tools can refer to various instruments or techniques used in mathematics, such as calculators, rulers, compasses, graph paper, software, etc. Each of these tools has its own purpose and may or may not have an inverse operation or tool associated with it.
For example, the inverse of addition is subtraction, the inverse of multiplication is division, and the inverse of differentiation is integration. However, it's not clear what the inverse of a “maths tool” would be.
Therefore, a) The inverse of “Add 25” would be “Subtract 25.”What is the b) The inverse of “Divide -18” would be “Multiply -18.” c) The inverse of “Subtract 3” would be “Add 3.” d) The inverse of “Multiply 14” would be “Divide 14.”
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A system of equations is given.
Equation 1: 4x − 6y = 10
Equation 2: 9x + 2y = 7
Explain how to eliminate x in the system of equations.
Step-by-step explanation:
To eliminate x in the system of equations:
1. Multiply Equation 1 by 9 and multiply Equation 2 by -4, this gives:
Equation 1: 36x -54y = 90
Equation 2: -36x - 8y = -28
2. Add the two equations together to eliminate x:
(36x - 54y) + (-36x - 8y) = 90 - 28
Simplifying, we get:
-62y = 62
3. Solve for y:
y = -1
4. Substitute y = -1 into one of the original equations, say Equation 1:
4x - 6(-1) = 10
Simplifying, we get:
4x + 6 = 10
5. Solve for x:
4x = 4
x = 1
Therefore, the solution to the system of equations is x = 1 and y = -1. We can check that these values are correct by substituting them back into the original equations and verifying that they satisfy both equations.
the sum of two numbers is 72 and their difference is 26. find two numbers?
9514 1404 393
Answer:
23, 49
Step-by-step explanation:
Let s represent the smaller of the two numbers. Then the larger is s+26, and the sum is ...
s + (s+26) = 72
2s = 72 -26
s = (72 -26)/2 = 23
Then the larger number is
s +26 = 49
The two numbers are 23 and 49.
_____
The reason we wrote the solution this way is to show you that the smaller number is half the difference between the given sum (72) and difference (26). This is the generic solution to a "sum and difference" problem. The smaller number is always half the difference of the give sum and difference. (Similarly, the larger is always half the sum of the given sum and difference.)
That is, the two numbers are always half the sum ± half the difference:
72/2 ± 26/2 = {36+13, 36-13} = {49, 23}
please help meeeeeeeeeeeeee
An executive invests 29,000, some at 8% and the rest at 7% annual interest. If he receives an annual return of $2,230, how much is invested at each rate?
Answer:
Amount invested in A (8%) = $20,000
Amount invested in B (7%) = $9,000
Step-by-step explanation:
Given:
Total amount invested = $29,000
Interest rate A = 8% = 0.08
Interest rate B = 7% = 0.07
Annual return = $2,230
Find:
Amount invested in each
Computation:
Assume;
Amount invested in A = x
Amount invested in B = 29,000 - x
So,
Interest receive from A = x × 0.08
Interest receive from A = 0.08 x
Interest receive from B = (29000 - x) × 0.07
Interest receive from B = 2,030 - 0.07 x
Annual return = Interest receive from A + Interest receive from B
2,230 = 0.08 x + 2,030 - 0.07 x
x = 20,000
Amount invested in A = $20,000
Amount invested in B = 29,000 - $20,000
Amount invested in B = $9,000
Derek is skiing on a circular ski trail that has a radius of 0.6 km. Derek starts at the 3-o'clock position and travels 2.4 km in the counter-clockwise direction.
a. How many radians does Brian sweep out?
b. When Brian stops skiing, how many km is Brian to the right of the center of the ski trail?
c. When Brian stops skiing, how many km is Brian above of the center of the ski trail?
Answer:
a) Brain sweep out 4 radians
b) Brian is -0.3922 km to the right of the center of the ski trail
c) Brian is -0.4541 km above of the center of the ski trail
Step-by-step explanation:
Given the data in the question;
circular ski trail radius = 0.6 km
Derek starts at the 3-o'clock position and travels 2.4 km in the counter-clockwise direction.
a) How many radians does Brian sweep out?
arc length = 2.4 km
from the diagram;
arc length = rθ
θ = arc length / r
θ = 2.4 / 0.6
θ = 4 radians
Therefore, Brain sweep out 4 radians
b) When Brian stops skiing, how many km is Brian to the right of the center of the ski trail?
from the diagram;
x = rcosθ
we substitute
x = 0.6 × cos(4)
x = 0.6 × -0.65364
x = -0.3922 km
Therefore Brian is -0.3922 km to the right of the center of the ski trail
c) When Brian stops skiing, how many km is Brian above of the center of the ski trail?
from the diagram;
m = rsinθ
m = 0.6 × -0.7568
m = -0.4541 km
Therefore, Brian is -0.4541 km above of the center of the ski trail
What is the value of 6(82)? Use place value and the distributive property. 6(82) = 6(80 + 2) = ? 432 482 492 552
Answer:
492
Step-by-step explanation:
6x82
Answer:
the answer is 492 the person above me is correct!!
Step-by-step explanation:
ASAPPPP PLEASEEEE HELPPPP
Answer:
Step-by-step explanation:
8\(\frac{1}{3}\) + 3\(\frac{1}{3}\)
=8*3+1/3 + 3*3+1/3
=24+1/3 + 9+1/3
=25/3 + 10/3
taking LCM od denominator
=25+10/3
=35/3
11\(\frac{2}{3}\) acres
What is the sin B?
/21
B
5
2
sin (B) =
[?]
Answer:
Step-by-step explanation:
sin (B) = \(\frac{2}{5}\)
7. A group of 140 tourists are going on a tour. The tour guide rents
15 vans. Each van holds 9 tourists.
Part A
Write a division problem that can be used to find the number of
vans needed to carry the tourists. Then solve.
Answer:
16
Step-by-step explanation:
140 divided by 9 = 15.5
you need 16 vans to hold 140 tourists
3 = c/-11 Help me with this please.
Answer:
-33=c
Step-by-step explanation:
-11×3=c/-11×-11 which cancels out the -11 and c equals -33
Repeated-measures and matched-subjects experiments Aa Aa Repeated-measures experiments measure the same set of research participants two or more times, while matched-subjects experiments study participants who are matched on one or more characteristics. Which of the following are true for both a repeated-measures experiment and a matched-subjects experiment when used to compare two treatment conditions? Check all that apply.
A. The researcher computes difference scores to compute a t statistic
B. If the researcher has n number of participants to use in the experiment, then the degrees of freedom will be the same in a repeated-measures experiment or in a matched-subjects experiment
C. The researcher must compute an estimated standard error for the mean difference score to compute a t statistic.
D. Participants in both types of experiments are all measured the same number of times
A matched-subjects experiment produced a t statistic with a df of 9. How many subjects participated in this study?
A. 20
B. 10
C. 18
D. 9
For a repeated-measures experiment comparing two treatment conditions, the t statistic has a df of 11. How many subjects participated in this study?
A. 12
B. 22
C. 24
D. 11
Answer:
1. C. The researcher must compute an estimated standard error for the mean difference score to compute a t statistics.
2. B. 10
3. A. 12
Step-by-step explanation:
The degrees of freedom is number of independent variable factors that affect the range of parameters. The degrees of freedom is the calculation of number values that are free to vary. The degrees of freedom is calculated by N-1. Standard error is the estimated deviation of standard deviation from its sample mean distribution.
I am thinking of two prime numbers.
I can tell you their HCF.
I can tell you how to find their LCM.
a How can Sasha do that?
b What will Razi tell Jake?
Answer:
Prime numbers only have two factors which is 1 and itself so the HCF of a prime number is itself.
LCM of prime numbers is like the LCM of any other number. See where the lowest multiple of both prime numbers are equal.
Hope this helps.
for the second question the options are: 71034, 71034000, 710.34 and 7013.4
Answer:
\(0.0005\) \(= 5 * 10^{-4\)
\(7.1034 * 10^3 = 7103.4\)
Step-by-step explanation:
Solving (a):
\(0.0005\)
Standard form is represented as:
\(a * 10^n\) where \(1 \le a \le 10\)
Move the decimal point to 5 and count the number of times the decimal point is moved forward (forward represents negative).
So:
\(a = 5\)
\(n = -4\)
Hence:
\(0.0005\) \(= 5 * 10^{-4\)
Solving (b):
\(7.1034 * 10^3\)
Express \(10^3\) as \(1000\)
This gives:
\(7.1034 * 10^3 = 7.1034 * 1000\)
\(7.1034 * 10^3 = 7103.4\)
Given the following, determine the set (B n C)'.
U= {x|x EN and x < 10}
B = {x|x EN and x is even and x< 10}
C = {x|x E N and x < 10}
Answer:
Step-by-step explanation:
U={x|x∈N and x<10}
or U={1,2,3,4,5,6,7,8,9}
B={x|x∈N and x is even and x<10}
or
B={2,4,6,8}
C={x|x∈N and x<10}
or
C={1,2,3,4,5,6,7,8,9}
(B∩C)={2,4,6,8}
(B∩C)'={1,3,5,7,9}
At the opening of a new movie 45% of the people in the theater were children.There were 187 adults were in the theater.What was the total number of people at the movie?
The number of people at the movie is 340
How to determine the number of people at the movieLet's represent the total number people at the movie as "x".
We know that the number of adults in the movie is 187 and the percentage of children is 45%
So we can write:
187 = (1 - 45%) * x
This gives
187 = 0.55x
To solve for x, we can divide both sides by 0.55:
x = 187/0,55
Evaluate
x = 340
Hence, the number of people is 340
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make x the subject
m= n+x/p
m = n+ x/p
m (*p) = n (*p) + x/p (*p)
mp = np + x
x= mp - np
x= p ( m - n)