Answer:
17822
Step-by-step explanation:
The number that are divisible by 7 between 30 and 500 are as follows :
35, 42,49,.....,497
It will form an AP with first term, a = 35 and common difference, d = 7
Let there are n terms in the AP.
nth term of an AP is given by :
\(a_n=a+(n-1)d\)
Putting all the values,
\(497=35+(n-1)7\\\\462=(n-1)7\\\\n-1=66\\\\n=67\)
Now, the sum of n terms of an AP is given by :
\(S_n=\dfrac{n}{2}[2a+(n-1)d]\)
Putting all the values,
\(S_n=\dfrac{67}{2}[2(35)+(67-1)7]\\\\S_n=17822\)
Hence, the sum of the numbers that are divisible by 7 between 30 and 500 is 17822.
A square has a side length of 9 feet. What is the area of the square
Answer:
81
Step-by-step explanation:
The area of a square is its side length squared so 9^2 is 81
There are 6 acts in a talent show.
An acrobat, a dancer, a guitarist, a singer, a violinist, and a whistler.
A talent show host randomly schedules the 6 acts.
Compute the probability of each of the following events.
Event A: The acrobat is first, the singer is second, the violinist is third, and the whistler is fourth.
Event B: The first four acts are the whistler, the acrobat, the guitarist, and the dancer, In any order.
Write your answers as fractions in simplest form.
P(A) =
P (B) =
The probability of Event A is 1/360 and the probability of Event B is 1/15.
For Event A, we can calculate the probability by considering the order in which the acts are scheduled.
There are 6 acts, so there are 6 possible choices for the first act. After the first act is scheduled, there are 5 remaining acts, so there are 5 possible choices for the second act.
Similarly, there are 4 possible choices for the third act, and 3 possible choices for the fourth act.
Finally, there are 2 possible choices for the fifth act, and only 1 choice remains for the last act.
Therefore, the total number of possible ways to schedule all 6 acts is:
6 x 5 x 4 x 3 x 2 x 1 = 720
Since we are only interested in one specific order of the first four acts, we need to count the number of ways to schedule the remaining two acts after the first four have been scheduled in the desired order.
There are 2 remaining acts, so there are 2 possible choices for the fifth act.
Only one act remains for the last slot.
Therefore, the total number of ways to schedule all 6 acts such that the acrobat is first, the singer is second, the violinist is third, and the whistler is fourth is:
1 x 1 x 1 x 1 x 2 x 1 = 2
Thus, the probability of Event A is:
P(A) = 2/720 = 1/360
For Event B, we want to count the number of ways to schedule the first four acts as the whistler, the acrobat, the guitarist, and the dancer, in any order.
There are 4 acts, so there are 4 possible choices for the first act. After the first act is scheduled, there are 3 remaining acts, so there are 3 possible choices for the second act.
Similarly, there are 2 possible choices for the third act, and only one choice remains for the fourth act.
Therefore, the total number of possible ways to schedule the first four acts is:
4 x 3 x 2 x 1 = 24
Since we do not care about the order in which the last two acts are scheduled, we can simply choose any two acts from the remaining 2. There are 2 ways to do this.
Therefore, the total number of ways to schedule all 6 acts such that the first four acts are the whistler, the acrobat, the guitarist, and the dancer, in any order is:
24 x 2 = 48
Thus, the probability of Event B is:
P(B) = 48/720 = 1/15
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which mixed number is equivalent to the improper fraction of 41/10
Answer:
4 1/10 when u have a inproper fraction like that every 10 is one whole number
i beg u PLEASE answer these both correctly.. i will give u bonus points and brainliest pls
Answer:
7. x = 105
8. x = 12
Step-by-step explanation:
7. subtract 52 and 53 from 180. equals 75. subtract 75 from 180. equals 105.
8. set the two equations equal to each other and solve. equals 12.
)4 posters cost $7.40. If each poster costs the
same, how much does each poster cost
Answer:
$1.85
Step-by-step explanation:
$7.40 divided by four is $1.85. hope this helps with anything.
If you buy stock for $36.20 per share and sell that stock for $37.90 per share, what was your
return on investment?
Answer:
$1.70 per share
Step-by-step explanation:
37.90-36.20=1.70
How many website graphics can be created?
I do not understand what do you mean
solve for r a= pi r squared
Isaac works a job that pays him based on
commission. He earns 5% commission on all
sales after the first $5000. To determine the
amount of sales he earns commission on, he
uses the function f(x) = x - 5000. Then he uses
a different equation to determine how much
commission he actually earns, g(x) = 0.05x. He
wants to create a composite that includes
both. What is the composite function?
-
=
Answer: 1000000
Step-by-step explanation:
5x100
A farm stand sells oranges in 3-lb bags for $3.75. What equation represents the cost, c, for p pounds of oranges? Think: how much will 1-lb of oranges cost?
A c = 1.25p B p = 1.25c
C c = 3.75p D p = 3.75c
Answer:
A
Step-by-step explanation:
It’s not B, because it’s saying each pound is 1.25 multiplied by the cost. We are looking for the cost, not the amount of pounds.
it isn’t C, because the oranges are sold in 3 pound bags, and the equation is comparing the cost of a 3 pound bag to 1 pound of oranges.
And it isn’t D, because D does the same thing as B, but with The cost of a 3 pound bag.
An equation is formed of two equal expressions. The correct option is A, c=1.25p.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that the farm stand sells oranges in 3-lb bags for $3.75. Therefore, the cost of the oranges for a pound is,
Cost of a pound of oranges = $3.75 / 3
= $1.25
Now, if the cost,c for p pounds of oranges is,
Cost, c = Cost of a pound of oranges × Number of pounds
= $1.25 × p
c = 1.25p
Hence, the correct option is A, c=1.25p.
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What is the intermediate step in the form (x+a)^2=b(x+a)
2
=b as a result of completing the square for the following equation?
x^2+22x=8x-53
By completing squares we will get the expression:
(x + 7)² = -4
How to complete squares in a quadratic equation?Here we have the quadratic equation:
x² + 22x = 8x - 53
First, move all the terms to the left side, then we will get:
x² + 22x - 8x + 53 = 0
x² + 14x + 53 =0
Now, remember the perfect square trinomial:
(a + b)² = a² + 2ab + b²
Then we can rewrite our expression as:
x² + 2*7*x + 53 =0
Now we can add and subtract 7², then we will get.
x² + 2*7*x + 7² - 7² + 53 =0
(x + 7)² - 7² + 53 = 0
(x + 7)² - 49 + 53 = 0
(x + 7)² + 4 = 0
(x + 7)² = -4
That is the expression we wanted.
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A glass is 1/3 full. Then 75cm3 of orange juice is poured in.
The glass is now 3/4 full. What is the total volume of the glass?
Question help the average income in a certain region in 2013 was $62 comma 00062,000 per person per year. Suppose the standard deviation is $27 comma 00027,000 and the distribution is right-skewed. Suppose we take a random sample of 100100 residents of the region.
a. Is the sample size large enough to use the central limit theorem for means? explain.
b. What are the mean and standard error of the sampling distribution?
c. What is the probability that the sample mean will be more than $2 comma 7002,700 away from the population mean?
The answer of the question about the points a, b, and c are the sample size is large enough to use the central limit theorem, the mean is $62,000, the standard error $2,700. and the probability of the sample mean is approximately 0.0002.
How the calculation draw the answer?A) The sample size is large enough to use the central limit theorem for means. This is because the central limit theorem states that the sampling distribution of the mean will approach a normal distribution as the sample size increases, and a sample size of 100 is generally considered to be large enough for the central limit theorem to apply.
B) The mean of the sampling distribution is equal to the population mean, which is $62,000. The standard error of the sampling distribution is equal to the standard deviation of the population divided by the square root of the sample size, or $27,000 / √100 = $2,700.
C) The probability that the sample mean will be more than $2,700 away from the population mean can be found using the standard normal distribution. We can find the z-score for $2,700 using the formula z = (x - μ) / σ, where x is the sample mean, μ is the population mean, and σ is the standard error. Plugging in the values gives us z = ($2,700 - $62,000) / $2,700 = -22.04. Using a standard normal table, we find that the probability of the sample mean being more than $2,700 away from the population mean is approximately 0.0002.
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Last year the Debate club had 17 members. This year there are 33 members in the club. Estimate the percent change in the number of club members.
We can estimate that the percent change in the number of club members from last year to this year is approximately 94.1%. This represents an almost doubling of the club membership.
What is the percent change?
Percentage change is a way to describe the difference between an old value and a new value, expressed as a ratio and then multiplied by 100.
To estimate the percent change in the number of club members, we can use the percent change formula:
percent change = (new value - old value) / old value x 100%
where the "old value" is the number of club members last year and the "new value" is the number of club members this year.
Plugging in the numbers we have:
percent change = (33 - 17) / 17 x 100%
percent change = 16 / 17 x 100%
percent change ≈ 94.1%
Therefore, we can estimate that the percent change in the number of club members from last year to this year is approximately 94.1%. This represents an almost doubling of the club membership.
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identify the graphs that are increasingidentify the graphs that are decreasing
Answer:
(a)Increasing: A, B, C, and E.
(b)Decreasing: D and F.
Explanation:
• An, increasing function ,is represented by a graph that ,rises from the left to the right.
,• A ,decreasing function ,on the other hand is represented by a graph that ,falls from the left to the right.
From the given graphs:
(a)The graphs that are increasing are A, B, C, and E.
(b)The graphs that are decreasing are D and F.
Help pls part b is how many batches of jam can the farmer make
The equation we need to find will relate the amount of remaining berries to the number of batches of jam the farmer can make is 16 = 2 1/2 + 2 1/4b (option b)
To start with, we know that the farmer picks 16 quarts of berries. Out of those, 2 1/2 quarts cannot be used, which means the farmer has 16 - 2 1/2 quarts of berries that can be used to make jam.
Now, the recipe requires 2 1/4 quarts of berries to make one batch of jam. Let's represent the number of batches of jam the farmer can make with the remaining berries as "b".
Therefore, the equation we need to find will relate the amount of remaining berries to the number of batches of jam the farmer can make is written as,
=> 16 = 2 1/2 + 2 1/4b
Hence the correct option is (b).
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Suppose a mutual fund has total assets of $25,500,000 and liabilities of $2,100,000. Currently there are 10,200,000 shares outstanding. Determine the net asset value of the fund? Round to the nearest cent. Show your work
The net asset value of the given mutual fund will be 2.29.
What is the arithmetic operator?Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,
Division = divide any two numbers or variables called division.
Multiplication = to multiply any two or more numbers or variables called multiplication.
As per the given,
Total assets = $25,500,000
Liabilities = $2,100,000
Total shares = 10,200,000
Net asset = (total assets - total liability)/total shares outstanding
Net assets = (25,500,000 - 2,100,000)/10,200,000
Net assets = 2.29
Hence "The net asset value of the given mutual fund will be 2.29".
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HELP ME PLEASE AND HURRY
the sum of a rational number and a rational number is rational.
-ALWAYS true
-SOMETIMES true
-NEVER true
thae answer is something true
Jada went to the mall yesterday with $30.
• She spent 2/5 of her money on a new purse.
She spent / of what was left at the food court.
• She gave $5 to her friend.
How much did she have left?
Solve by Factoring:
2x^2 - x - 3 = 0
Answer:
x = 3/2 or x = -1
Step-by-step explanation:
2x² - x - 3 = 0
2*(-3) = -6
Factors of -6:
(-1, 6), (1, -6), (-2, 3), (2, -3)
We need to find a pair that adds up to the co-eff of x which is (-1)
Factors :(2,-3)
2 - 3 = -1
so, 2x² - x - 3 = 0 can be written as:
2x² + 2x - 3x - 3 = 0
⇒ 2x(x + 1) -3(x + 1) = 0
⇒ (2x - 3)(x + 1) = 0
⇒ 2x - 3 = 0 or
x + 1 = 0
⇒ 2x = 3 or x = -1
⇒ x = 3/2 or x = -1
Find the smallest value of k such that 525k is a perfect cube
Answer:
If u decompose in prime factors,u get 175=52•7 so the smallest perfect cube is the number that we must multiply by 5 and by 7 so to create the smallest perfect cube,i.e. 53•73. This number is K=5•72=245
A line has a slope of -2 and passes through the point (4, -9)
Answer:
y= -2x-1
Step-by-step explanation:
Use y-y1=m(x-x1)
Triangle ABC with vertices at
A (-8,8) B (12,12) C (0,12) is dilated to create triangle A’B’C with vertices at A’ (-2,-2), B’ (3,3), C’ (0,3). Determine the scale factor used.
A. 6
B. 1/6
C. 4
D. 1/4
The scale factor used to dilate triangle ABC to create triangle A'B'C' is approximately 1/4(Option- D).
To determine the scale factor used to dilate triangle ABC to create triangle A'B'C', we can use the formula:
scale factor (k) = length of corresponding sides in A'B'C' / length of corresponding sides in ABC
Let's begin by finding the lengths of the corresponding sides in each triangle:
- AB =\(\sqrt((12 - (-8))^2 + (12 - 8)^2) = \sqrt(20^2 + 4^2) = \sqrt(416)\)
- A'B' = \(\sqrt((3 - (-2))^2 + (3 - (-2))^2) = \sqrt(5^2 + 5^2) = \sqrt(50)\)
- BC = \(\sqrt((0 - 12)^2 + (12 - 12)^2) = 12\)
- B'C' = \(\sqrt((0 - 3)^2 + (12 - 3)^2) = \sqrt(9 + 81) = \sqrt(90)\)
- AC = \(\sqrt((0 - (-8))^2 + (12 - 8)^2) = \sqrt(8^2 + 4^2) = \sqrt(80)\)
- A'C' =\(\sqrt((0 - (-2))^2 + (12 - (-2))^2) = \sqrt(2^2 + 14^2) = \sqrt(200)\)
Now, we can substitute these values into the formula and solve for the scale factor:
k = (A'B' / AB + B'C' / BC + A'C' / AC) / 3
= \(\sqrt(50) / \sqrt(416) + \sqrt(90) / 12 + \sqrt(200) / \sqrt(80)) / 3 = (5 \sqrt (2) + 3 \sqrt (10) + 5 \sqrt (5)) / (12 \sqrt (2)) = (5/12) * (\sqrt (2) + \sqrt (10) + \sqrt (5))(Option-d)\)
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A recipe requires 3 cups of flour to make 15 servings and 7 cups of flour to make 35 servings how many cups of flour are needed to make 20 servings?
Answer:
a = 8
b = 2
c = 48
Step-by-step explanation:
3 cups of flour is needed to make 24 servings.
3:24
Simplify. First, divide 3 from both sides of the ratio.
(3)/3 : (24)/3
1:8
Next, solve for b. You multiply 2 to 8 to get 16. Next, multiply 2 to 1
1 x 2 = b = 2
Finally, multiply 8 to 6 to get c.
8 x 6 = c = 48
~
2. Write the absolute value of the following. a) | -6 -3 | . b) | 0 - 12 |.
Answer:
a)9. b) 12
Step-by-step explanation:
a) | -6 -3 | .
-6-3 = -9
|-9| =9
b) | 0 - 12 |.
0-12=-12
|-12|=12
Calculating the mean: data displays
Find the mean of the data in the bar chart below.
students
Size of each teacher's class
16
14
12
10
Number of students
8
6
4
SH
2.
0
Mr. Brehan
Mrs. Jones
Mr. Singh
Ms. Garcia
Answer:
Step-by-step explanation:
The answer is 12 students
Answer:12
Step-by-step explanation:
A formation is:
A. Closing in on players so they do not have any room to maneuver
B. Mirroring the format and positioning of the other team
C. Marking and defending a specific area
D. An organized patter of player positions.
Miss Piperato has $115 to go roller skating with her friends. Admission tickets will cost $18.50 per person,
including tax and she would also like to purchase a pretzel for $4. Write and solve an equation that can be
used to determine how many tickets she can purchase.
A. She can purchase 6 tickets
B. She can purchase 12 tickets
C. She can purchase 24 tickets
D. She can purchase $6 worth of tickets
not d
Step-by-step explanation:
d is not the anser cus it is to small or a purshes
!!HELP MEEE!!!
What is the length of PQ?
14 units
17 units
27 units
34 units
The length of the line segment AB is 5 units.
Unfortunately, you haven't provided any information about PQ such as its location or any other data to help solve the question.
Therefore, it's impossible to determine the length of PQ using the given options. However, here is an explanation of how to find the length of a line segment using the distance formula, which may help you in solving similar questions in the future.
The distance formula is used to find the distance between two points in a coordinate plane, such as the length of a line segment. The formula is:
d = √((x₂ - x₁)² + (y₂ - y₁)²)
where d is the distance, (x₁, y₁) and (x₂, y₂) are the coordinates of the two points.
To use the distance formula, you first need to find the coordinates of the two points that make up the line segment. Then, substitute these coordinates into the formula and simplify to find the distance.
For example, let's say you have two points: A(1, 2) and B(4, 6), and you want to find the length of the line segment AB. Using the distance formula:
d = √((4 - 1)² + (6 - 2)²)
d = √(3² + 4²)
d = √(9 + 16)
d = √25
d = 5
Remember, the distance formula can be applied to any two points in a coordinate plane to find the distance between them.
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600 kids from Grade 1, 460 kids from Grade 2, and 690 kids from Grade 3 participated in a painting contest.
How many students participated in all?
Answer:
1,750 students participated in all
Step-by-step explanation:
can i get brainliest plz