Answer:
Step-by-step explanation:
slope = (3.75-0)/(3.5-2)=2.5
line equation y=mx+c
0 = 2.5*2+c c=-5 y-intercept
10. Prime numbers from 1 to 100 are running a restaurant - PRIME SPOT, near a tourist point. On a winter holiday, 1 and the composite numbers up to 100 enter the restaurant for dinner after their picnic at the same point. The dining hall has tables with seating capacity 15 for each. If they occupy tables without leaving any chair free, how many tables are required? If each prime number attender has to serve equal number of customers, how many customers should each one get to serve?
6 tables are required. Each prime number attender should serve 3 customers each.
The prime numbers between 1 and 100 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
All the numbers other than prime numbers are composite numbers.
The composite numbers from 1 to 100 are: 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.
Now, as there are 25 primes and 75 composites in the group that visited the restaurant, we can calculate the number of tables required by dividing the number of people by the seating capacity of each table.
Each table has a seating capacity of 15, so the number of tables required will be: Number of tables = (Number of customers)/(Seating capacity of each table)Number of customers = 25 (the number of primes) + 75 (the number of composites) = 100Number of tables = 100/15 = 6 tables
Therefore, 6 tables are required.
Now, as each prime number attender has to serve an equal number of customers, we need to calculate how many customers each one should serve.
Each prime attender has to serve 75/25 = 3 customers each, as there are 75 composites and 25 primes.
Thus, each prime number attender should serve 3 customers each.
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Find the complete factored form of the
polynomial :
-8m²n-7m² nª
Enter the correct answer.
The polynomial -8m²n - 7m²n can be factored using the common factor -m²n. The complete factored form of the polynomial is (-m²n) (8 + 7a).
To find the complete factored form of the polynomial -8m²n - 7m²n, we can factor out common terms from both the terms. The common factor in the terms -8m²n and -7m²n is -m²n. We can write the polynomial as:
-8m²n - 7m²n = (-m²n) (8 + 7a)
Therefore, the complete factored form of the polynomial -8m²n - 7m²n is (-m²n) (8 + 7a). This expression represents the original polynomial in a multiplied form. We can expand this expression using distributive law to verify that it is equivalent to the original polynomial.
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What kind of graph is this ?
A. Positive
B. Negative
C. Undefined
D. Zero
Answer:
B. negative
Step-by-step explanation:
it is on the negative side of the graph
Answer:
C.
Step-by-step explanation:
its c, undefined. remember that zero will be horizontal and undefined will be vertical like in this picture. hope this helped
Use the distributive property to fill in the blanks below.
(8 x 5) + (8 x 2) = 8 x (_ + _)
\(\boxed{\sf ab+ac=a(b+c)}\)
\(\\ \rm\longmapsto (8\times 5)+(8\times 2)\)
\(\\ \rm\longmapsto 8(5+2)\)
\(\\ \rm\longmapsto 8(7)\)
\(\\ \rm\longmapsto 56\)
Please just answer part B And please explain every step and how its simplified so I can understand better.
Given that
We have to find the inverse of a function and the function is
\(g(x)=2^{x-1}\)Explanation -
The steps to find the solution are -
(1). First, we will consider the function equal to y as
\(\begin{gathered} g(x)=y \\ x=g^{-1}(y)----------(i) \\ y=2^{x-1} \end{gathered}\)(2). Now from this, we will find the value of x in terms of y.
And we will take the base of the log as 2 because the x is in the power of 2. As an exponential function.
As
\(\begin{gathered} y=\frac{2^x}{2} \\ Taking\text{ the }\log_2\text{ on both sides we have} \\ \log_2y=\log_2(\frac{2^x}{2}) \\ \log_2y=\log_22^x-\log_22 \\ \\ Using\text{ the formulae of log,} \\ \begin{equation*} \log_a(\frac{b}{c})=\log_ab-\log_ac \end{equation*} \\ \log_aa^p=p\times\log_aa \\ and\text{ }\log_aa=1 \\ \\ Now,\text{ } \\ \log_2y=\log_22^x-1 \\ \log_2y=x\log_22-1 \\ \log_2y=x-1 \\ x=\log_2y+1 \end{gathered}\)(3). Now from eq (i) we have
\(g^{-1}(y)=\log_2y+1\)(4). At last, we will replace y with x. Then,
\(g^{-1}(x)=\log_2x+1\)Final answer -
The final answer is \(g^{-1}(x)=\log_2x+1\)Please help me on part b
Answer:
0.859493
0.859
Hope This Helps!!!
For two n by n square matricies A and B,
suppose rankA = rankB = n-1.
Can rank(AB) become less than n-1 ?
(e.g. rank (AB) = n-2)
If so, I humbly ask you for an example.
Thank you very much.
No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.
According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.
If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.
Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.
However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.
Therefore, if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.
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If y and x vary directly and
y=1.4when x=3.2, what is x when y=2.6? Round to two decimal places. Show your work
If y and x vary directly, the value of y=2.6 then value of x is 1.14.
The tenths place is represented by the initial digit following the decimal. The hundredths place is denoted by the digit that followed the decimal. Up until there are no additional digits, the remaining ones keep the place values filled in the quantity.
For example, 2.84620364 can be round to two decimal places as 2.85, and 0.8035 can be round to two decimal places as 0.80.
Here x and y vary directly,
So , x/y = k
Therefore K is constant
For x = 3.2 and y = 1.4
Then x/y = k
3.2/1.4 = k
K = 1.6/0.7
If y = 2.6 what is x
y = 2.6 and k = 1.6/0.7
2.6/x = 1.6/0.7
1.6x = 18.2
X = 1.1375.
Hence, the Round to two decimal places of x is 1.14
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the sum of all even numbers in 3 digit
it will mark as topper
Answer
sum of all 3 digit even number = 247050
The series is 100 + 102 + 104 + .... + 998
which by using formula Sn = N/2 ( a + an)
where N = number of terms
a = first term = 100
an = last term = 998
Please help me in confused
Answer:
20\(c^{6}\)
Step-by-step explanation:
using the rule of exponents
\(a^{m}\) × \(a^{n}\) = \(a^{(m+n)}\)
given
(- 4c³)(- 5c³) ← remove parenthesis
= - 4 × c³ × - 5 × c³
= - 4 × - 5 × c³ × c³
= 20 × \(c^{(3+3)}\)
= 20\(c^{6}\)
The area of a rectangle is 16 1/3 square inches.The width is 4 2/3. Inches.Find the length
Answer:
Let the length of the rectangle be L. Then we can use the formula for the area of a rectangle:
Area = Length x Width
Substituting the given values, we get:
16 1/3 = L x 4 2/3
To solve for L, we can first convert the mixed numbers to improper fractions:
16 1/3 = 49/3
4 2/3 = 14/3
Substituting these values, we get:
49/3 = L x 14/3
To solve for L, we can multiply both sides by the reciprocal of 14/3:
49/3 ÷ 14/3 = L
Simplifying, we get:
L = 49/3 x 3/14
L = 7/1
L = 7
Therefore, the length of the rectangle is 7 inches.
Step-by-step explanation:
what is the y intercept ??
An equivalent ratio to the tape diagram shown is
to pls i need a answer
An equivalent ratio to the tape diagram shown is 1 to 2
How to determine the equivalent ratio?From the tape diagram, we have:
Red = 2
Blue = 4
Express as a ratio
Red : Blue = 2 : 4
Divide by 2
Red : Blue = 1 : 2
Hence, an equivalent ratio to the tape diagram shown is 1 to 2
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Is triangle EJH congruent to triangle EIH?
Yes or No?
Answer:
Yes
Step-by-step explanation:
Emma is making brownies. Her recipe says to use 3 eggs and 1 cup of vegetable oil. If she wants to make twice as many brownies, how many eggs and how much vegetable oil should she use?
Answer:
6 eggs and 2 cups of oil
Step-by-step explanation:
Answer:
if she wants to double the recipe multiply the ingredients by 2, making it 2 servings. so 6 eggs and 2 cups oil should make double the original recipe. hope this helps
Can somebody help me
Answer:
Angles in a triangle sum to 180.
So
x= 180 - 75 - 43
x=62°
Answer:
x=62°
Step-by-step explanation:
x= 180 - 75 - 43
There are 5000 undergraduates registered at a certain college. Of them, 448 are taking one course, are taking two courses, 675 are taking three courses, are taking four courses, are taking five courses, and are taking six courses. Let be the number of courses taken by a student randomly sampled from this population. Find the probability distribution of . Round the answers to four decimal places as needed.
Answer:
Step-by-step explanation:
Hello!
There are some values missing, so I'll find the probability distribution using others as example. Afterwards you can calculate the ones corresponding to this exercise following the same steps.
Considering there are 5000 undergraduates registered in the college.
465 are taking one course
658 are taking two courses
566 are taking three courses
1877 are taking four courses
1344 are taking five courses
90 are taking six courses
First you have to define the variable of interest. To identify it you have to ask yourself the following question: what is the characteristic of this population that is being measured?
The answer is "the number of courses an undergraduate is taking" and this will be the study variable X
X can take values from 1 to 6 courses.
To calculate the probability of each value of X, you have to divide the "number of students taking Xi courses" by "total number of students registered in the college"
For
X=1
P(1)= 465/5000= 0.093
X=2
P(2)= 658/5000= 0.1316
X=3
P(3)= 566/5000= 0.1132
X=4
P(4)= 1877/5000= 0.3754
X=5
P(5)= 1344/5000= 0.2688
X=6
P(6)= 90/5000= 0.018
For this to be a probability distribution the following condition should be met:
F(X)= ∑P(X) = 1
In this example: 0.093 + 0.1316 + 0.1132 + 0.3754 + 0.2688 + 0.018 = 1
I hope this helps!
for each parallel lines. you are given the measure of one angle
Answer:
The question is not complete
Urgent need help pls answer with the correct explanation
area of circle:
π * radius²
π * 2²
4π in²
area of rectangle:
length * width
20 * 4
80 in²
total area:
4π in² + 80 in²
93 in²
area of triangular prism:
( base length * perpendicular height * length ) ÷ 2
( 12.6 * 1.6 * 10.75 ) ÷ 2
216.72 ÷ 2
108.36 mm³
The beginning balance of the check register was $492.88. During the month, deposits were made for $210 and $499.88. Checks were
written for $18.25, $19.82, and $309.82. What is the ending balance of the check register?
Note: Round your answer to 2 decimal places.
Answer:
$840.77
Step-by-step explanation:
_2. A bacteria population starts at 2,032 and decreases at about 15% per day.
Write a function representing the number of bacteria present each day.
A. $(x) - 2032(0.85)
C. $(x) - 2032(0.85)
B. $(x) - 2032(1.85)
D. f(x) – 2032(0.15)
Answer:
Step-by-step explanation:
The Answer will be D hope this helps ya :)
The function representing the number of bacteria present each day is
\(\rm f(t) = 2032(0.85)^{t}\) .
What is a function ?
A function from a set X to a set Y assigns to each element of X exactly one element of Y.
The set X is called the domain of the function and the set Y is called the codomain of the function
A bacteria population starts at 2032 and decrease by 15% everyday.
a function representing the number of bacteria present each day
\(\rm f(t) = 2032(1-.15)^{t}\)
\(\rm f(t) = 2032(0.85)^{t}\)
Therefore \(\rm f(t) = 2032(0.85)^{t}\) is the correct answer .
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What’s the difference between 126 1/4 and 78 7/12
The difference between 126 1/4 and 78 7/12 is 143/3 or 47 2/3.
The is the difference between the two mixed fraction?To find the difference between the numbers simplify means;
to subtract 78 7/12 from 126 1/4 .
126 1/4 - 78 7/12
First, convert the mixed fractions into improper fractions.
( 126 × 4 + 1 )/4 - ( 78 × 12 + 7) /12
505/4 - 943/12
Multiply first term by 3/3 which is the same as 1.
( 505/4 × 3/3 ) - 943/12
1515/12 - 943/12
( 1515 - 943) / 12
572 / 12
143/3 or 47 2/3.
Therefore, the difference is 143/3 or 47 2/3.
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PLEASE HELP ME WITH THIS
Answer:
C.
Step-by-step explanation:
So we have the equation:
\(y=\sqrt{x-3}\)
This is a square root equation.
For square root equations, the radicand(s) must be positive.
Therefore, to find the domain, set the radicand to be greater than or equal to 0:
\(x-3\geq 0\)
Solve for x. Add 3 to both sides:
\(x\geq 3\)
Therefore, our domain must be greater than or equal to 3.
In set notation, this is:
\(\{x:x\geq 3\}\)
Therefore, our answer is C.
All we need to do is solve for the 0 of the function.
Solution:
0 = √x-3
0^2 = x - 3
0 = x - 3
3 = x
The domain is greater than or equal to 3 and this can be written as x ≥ 3 or in other words, Option 3.
Best of Luck!
A ball is thrown from a height of 2 meters with an initial downward velocity of 20. The ball's height (in meters) after seconds is given by the following. Find all values of for which the ball's height is meters
Answer:
1.56 seconds
Step-by-step explanation:
How many constants are in the following expression? 2y + 2
Once we make the product we get:
\(2y+4\)in this expression the constant term is 4, therefore the expression has one constant term.
Two wires are attached to a pole and create similar triangles with the ground. The longer wire is attached to the ground 32 feet from
the base of the pole and the shorter wire is attached to the ground 16 feet from the base of the pole.
If the cosine of the angle formed by the shorter wire and the ground is 8/41, what is the length of the longer wire?
Please help im so confused!
The length of the longer wire is 82 feet.
Let's denote the length of the longer wire as L. According to the given information, the shorter wire is attached to the ground 16 feet from the base of the pole, and the longer wire is attached to the ground 32 feet from the base of the pole.
We can form two similar right triangles using the wires. The height of each triangle is the height of the pole, and the base of each triangle is the distance from the base of the pole to where the wire is attached to the ground.
In the first triangle, the shorter wire creates an angle with the ground. Let's denote this angle as θ. Since we are given the cosine of this angle, we can use the cosine function to find the height of the pole in terms of θ and the base of the triangle:
cos(θ) = adjacent/hypotenuse = 16/L
Given that cos(θ) = 8/41, we can substitute this value into the equation:
8/41 = 16/L
To solve for L, we can cross-multiply and solve for L:
8L = 41 * 16
L = (41 * 16)/8
L = 82
Therefore, the length of the longer wire is 82 feet.
In summary, the length of the longer wire is 82 feet, as determined by using the cosine of the angle formed by the shorter wire and the ground, and considering the similarity of the triangles formed by the wires and the pole.
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If Lane wrote a measure in the time signature below that was just sixteenth notes, how many sixteenth notes would there be?
The most common bottom numbers are "4, 8, and 16". A further explanation is provided below.
The bottom numeral indicates the type of remark to measure. That seems to be, if whether measures should be counted as quarterly notes, 8th or 16th notes.
As nothing more than a result, the only quantities you'll see as the bottom amount relate to note value systems:
1 = Whole note2 = half note4 = Quarter note8 = Eight note16 = Sixteenth noteYou could keep going with 32 or 64, although presumably, you won't have to because it becomes a little cumbersome after a time.
Thus the aforementioned response is appropriate.
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there's 240 candy bars 1/4 of candy bars are snickers 1/3 of the candy bars are twix 1/8 of the candy bars are hershey. how many candy bars are Mars? explain not with a lot of words but in numbers please.
Answer:
you have to add all the fractions of the candy1/4+1/3+1/8
=17/24
subtract from 1Step-by-step explanation:
1-17/24
=7/24
multiply with the total number of candy7/24×240
=70
6. Let the function g be defined by g(x) = x4 – x3 – 9x2 + 9x. It is given that
x = 1 is a zero of the function g. Which of the following best represents the fully
factored form of the function g?
Answer:
A
Step-by-step explanation:
There is an x in all for terms that means that x = 0 is one of the factors and H is incorrect.
One of the remaining factors is x^2 - 9 which factors into (x - 3)(x + 3)
You are told that x = 1 is a zero which means x - 1 is a factor.
The answer is g(x) = x (x - 3)(x + 3) (x - 1) which is A
dose the graph show a function? explain how you know
Answer:
No
Step-by-step explanation:
the graph fails the vertical line test