Answer:
If 3x + 8x + 4x = 6x + 63, then what is 5x + 23?
Step-by-step explanation:
Answer:
\(3y+5x=11\)
CAN U GIMME BRAIN PLZ!!Mr. McKitrick drove his car for 162.4 miles during 28 days. He drove the same number of miles each day. How many miles did Mr. McKitrick drive each day?
Answer:
5.8 miles
Step-by-step explanation:
Remark
The total distance = 162.4
The total time = 28 days
Formula
Daily distance = Total distance / Total time
Solution
Daily distance = 162.4/28
Daily distance = 5.8 miles
Seventy-five percent, or 15, of the students in Emily's homeroom class are going on a field trip. Two-thirds, or 12, of the students in Santiago's homeroom are also going on the field trip. Which class has more students.
If E= Emily's homeroom class students, and S = Santiago's homeroom class students then
\(\begin{gathered} 0.75E=15 \\ \frac{2}{3}S=12 \\ \\ E=\frac{15}{0.75}=20 \\ S=\frac{12\cdot3}{2}=18 \\ \\ \text{ Then Emily's class has more students!} \end{gathered}\)determine if the following conjecture is valid. given: for the past five years, robyn has grown 2 in . every year. she is now 15 years old and is 5 ft , 4 in . tall. conclusion: robyn will be 6 ft , 2 in . tall when she's 22 years old.
The conclusion of conjuncture that robyn will be 6 ft , 2 in. tall when she has completed 22 years age is not valid. So, option(b) is right one.
We have some statement or conjectures. We have to determine the final or produced conjecture is valid or not. According to statement, In fast five years,
The growth rate of Robyn's height = 2 in. per year
But for next five years the growth rate may or may not be remain same, i.e, 2 in. every year. Now, Age of Robyn = 15 years and Height of Robyn = 5 feet, 4 in. = 64 inches ( from conversion factor, 1 ft = 16 inches)
The final statement is that she will be 6 ft , 2 in. that is 74 inches tall when she's 22 years old. After 7 years from now, the increase in her height = 2 × 7 = 14 inches
and new height = 64 inches + 14 inches
= 78 in. = 6 feet, 6 inch.
So, this is not valid conjecture.
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Complete question
determine if the following conjecture is valid. given: for the past five years, robyn has grown 2 in . every year. she is now 15 years old and is 5 ft , 4 in . tall. conclusion: robyn will be 6 ft , 2 in . tall when she's 22 years old.
a) valid
b) not valid
c) valid only if she is male
What is the maximum number of pieces that a watermelon can be cut into with 10 cuts.
Watermelon can be divided into a maximum of 56 pieces using ten cuts.
A watermelon splits into two parts when you make a cut through it. Anywhere that a subsequent cut crosses an earlier cut, a new piece is formed. As a result, there are more pieces after each cut.
We need to take into account how the cuts cross to find the maximum number of pieces. Two pieces are produced by the first cut, two more are produced by the second cut intersecting those two pieces, and so on.
Figured out using a formula.
The formula given below is to calculate the greatest number of fragments from n cuts.
N=(n²+n+2)/2
In the formula, change n = 10 to represent ten cuts as follows
N=(10²+10+2)/2
N = (100+10+2)/2
N=112/2 N=56
A watermelon may only be divided into a maximum of 56 pieces with ten cuts.
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factor 18s-63
A 9(2s+7)
B 6(3s-11)
C 18(s-3)
D 9(2s-7)
Answer:
it's D
Step-by-step explanation:
pls give me da crown
Integrate by hand the following functions: adr b) (42³-2r+7) dz Upload Choose a File
The integral of (42³ - 2r + 7) dz is equal to (42³ - 2r + 7)z + C.
To integrate the function (42³ - 2r + 7) dz, we treat r as a constant and integrate with respect to z. The integral of a constant with respect to z is simply the constant multiplied by z:
∫ (42³ - 2r + 7) dz = (42³ - 2r + 7)z + C
where C is the constant of integration.
Note: The integral of a constant term (such as 7) with respect to any variable is simply the constant multiplied by the variable. In this case, the variable is z.
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Hank paid $16,780 for a used car 5 years ago. Because he did not properly maintain the car, he sold it for $4,280. What was his average annual depreciation?
The average annual depreciation of the car over the 5 years span is $2500/year.
It is given that Hank paid $16,780 for a used car 5 years ago. Because he did not properly maintain the car, he sold it for $4,280.
We can write the average annual depreciation as -
Annual depreciation = (4280 - 16780)/5
Annual depreciation = (4280 - 16780)/5
Annual depreciation = - 2500
Therefore, the average annual depreciation of the car over the 5 years span is $2500/year.
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Kendra would like to buy a vehicle that is priced at $4,100. Assume she has saved 20 percent of the purchase price from a down payment. How much money does she need to finance?
$3280 amount does Kendra need to finance.
What is cost prize ?
The prize at which the good and services have been bought is known as cost prize.
It is given that Kendra saves 20% price of that of cost price of vehicle that is new price at which Kendra bought that vehicle will be :
New cost price (C.P) = $4100 - 20% of $4100
New cost price (C.P) = $4100 - $820
New cost price (C.P) = $3280
Therefore, $3280 amount does Kendra need to finance.
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A(n) _____ leader is an individual who grows into the leadership role, often out of necessity.
a. appointed
b. autocratic
c. democratic
d. emergent
e. laissez-faire
The correct answer is d. emergent.
An emergent leader is an individual who grows into the leadership role naturally, often due to circumstances or necessity. They are not appointed or assigned to the position of leadership but rather emerge from the group or organization based on their skills, qualities, or actions.
Emergent leaders may possess certain qualities or demonstrate their competence and ability to guide and influence others. They gain recognition and respect from their peers, leading to their emergence as leaders within the group or organization.
This type of leadership often occurs in situations where formal leadership structures may be absent or ineffective, and individuals step up to take charge based on their capabilities and the needs of the group.
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A flare is designed to follow the path modeled by the function h(t) = â€"16t2 100t, where t is the time elapsed, in seconds, and h(t) is the height, in feet, of the flare at that time. the function can be used to convert the height in feet to the height in meters. which composite function can be used to determine the height, in meters, of the flare at any given time?
the composite function that can be used to determine the height, in meters, of the flare at any given time is:
h_meters(t) = 0.3048 * h(t)
To determine the height of the flare in meters at any given time, we can use the composite function. The composite function is obtained by converting the height in feet to meters.
The conversion factor to convert feet to meters is 0.3048. So, we can multiply the height in feet by 0.3048 to get the height in meters.
Therefore, the composite function that can be used to determine the height, in meters, of the flare at any given time is:
h_meters(t) = 0.3048 * h(t) Where h(t) is the height of the flare in feet, and h_meters(t) is the height of the flare in meters.
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"1. In which of the following categories of problems an 8-puzzle
problem can be placed? Discuss with appropriate reasoning.
Pathfinding problems
State finding problems
Decomposable problems
Pre"
The 8-puzzle problem can be categorized as a "Pathfinding problem."
The 8-puzzle is a classic problem in artificial intelligence and computer science. It involves a 3x3 grid with eight numbered tiles and one empty space. The objective is to rearrange the tiles from an initial configuration to a goal configuration by sliding them into the empty space.
The reason why the 8-puzzle problem is classified as a pathfinding problem is that it involves finding a sequence of moves or actions to reach a desired state or goal. In this case, the desired state is the goal configuration of the puzzle. The problem requires determining the optimal sequence of moves that lead to the goal state while considering the constraints and limitations of the puzzle.
Pathfinding problems involve finding the shortest or optimal path from a starting point to a goal or destination. In the 8-puzzle problem, the empty space serves as the movable "agent" that can slide adjacent tiles. The objective is to find the shortest sequence of moves or actions to transform the initial configuration into the goal configuration, effectively finding a path to the solution.
Therefore, due to its nature of finding an optimal sequence of moves to reach a goal state, the 8-puzzle problem can be categorized as a pathfinding problem.
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Mean if 90 minutes and a standard deviation of 13 what is the cutoff time for a runner to finish in the 25% of the runners
If Mean is 90 minutes and a standard deviation of 13. The cutoff time for a runner to finish in the 25% of the runners is: 81.238 minutes.
What is the cutoff time ?We can calculate the z-score using the formula:
z = (x - mean) / standard deviation
Where:
mean = 90 minutes
standard deviation= 13.
We want to find the cutoff time for the 25th percentile, which corresponds to a z-score of -0.674.
Using the formula for z-score we can rearrange it to solve for x:
x = mean + (z * standard deviation)
Substitute
x = 90 + (-0.674 * 13)
x = 90 - 8.762
x ≈ 81.238
Therefore, the cutoff time is 81.238 minutes.
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What is the complete factorization of 4x2 - 9y4?
Answer:
the answer is c
( 2 x + 3 y ) ( 2 x − 3 y ) is the factored form of the expression
Step-by-step explanation:
4 x 2 − 9 y 2 can be also written as ( 2 x ) 2 − ( 3 y ) 2 Now, as per identity: a 2 − b 2 = ( a + b ) ( a − b ) So , in case of our expression a = 2 x , b = 3 y ( 2 x ) 2 − ( 3 y ) 2 = ( 2 x + 3 y ) ( 2 x − 3 y )Answer: D
Explanation:
if you evaluate/simplify the equation you would get 4x^2 - 9y^4.
Find the area of the triangle
Answer:
12 units2
Step-by-step explanation:
(6x4) /2 =12
5. A ship of height h = 18 m is sighted from a lighthouse. From the top of the lighthouse, the angle of depression to the top of the mast and the
base of the ship equal 30oand 45o respectively. How far is the ship from the lighthouse (in meters)?
Answer:
Based on the given information, a ship with a height of 18 m is sighted from a lighthouse. The angle of depression from the top of the lighthouse to the top of the ship's mast is 30º, and the angle of depression to the base of the ship is 45º. To find the distance between the ship and the lighthouse, we can use trigonometry and the concept of angles of depression.
Let's denote the distance between the ship and the lighthouse as 'd'. We can use the angle of depression of 30º to set up a trigonometric equation: tan(30º) = h / d. Solving for 'd', we get: d = h / tan(30º). Substituting the given value of h = 18 m, we can calculate the distance 'd' between the ship and the lighthouse.
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I need help with this I have 5 minutes to get it done
Step-by-step explanation:
1.
equilateral triangle. all sides and also all angles are equal.
the sum of all angles in a triangle is always 180°.
so,
6x = 180/3 = 60°
x = 10
2.
all 3 angles are equal, so, also all 3 sides are equal.
6x - 5 = 5x
x - 5 = 0
x = 5
3.
again, all 3 angles are equal.
3x = 180/3 = 60
x = 20
4.
the 2 sides are marked as equally long.
4x = 40
x = 10
5.
isoceles triangle with 60° angle in top, that means it is again an equilateral triangle.
3x + 8 = 4x - 4
8 = x - 4
12 = x
6.
again all angles are equal.
4x = 60
x = 15
Fill in the blank with a whole number only - no decimals, no symbols. The demand for a product is given by: Qd = 20 - P. Total revenue will be maximized when quantity is equal to [a]
The total revenue that will be maximized is 20 - 2a
Finding the total revenue that will be maximizedFrom the question, we have the following parameters that can be used in our computation:
Qd = 20 - P
The revenue equation is calculated using
Revenue = Quantity * Price
So, we have
R = Qd * P
This gives
R = (20 - P) * P
Expand
R = 20P - P²
Differentiate
R' = 20 - 2P
Next, we have
Q = a
So, we have
R = 20 - 2a
Hence, the total revenue that will be maximized is 20 - 2a
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Mercury travels about 107,100 miles per hour as it resolves around the sun. How far does Mercury travel in 6 seconds?
Answer:
12
Step-by-step explanation:
Answer:
17,850
Step-by-step explanation:
1. The two rectangles are similar. Which is the correct proportion for corresponding sides?
A. 12
24
B. 12
24
C. 12
8
=
=
D. 4 24
12 8
-
8
4
4
8
4
24
Answer:
the answer is B
Step-by-step explanation:
just trust me
Answer:
A and B
Step-by-step explanation:
Hope its help you
Y=1/2x-1
2x+y=4
Substitution method
Elimination method
Graphing method
MUST SHOW WORK!
Answer:
Y=1/2x-1Find where the expression
1/2x−1 is undefined.
x=1/2
Consider the rational function
R(x)=ax^n/bx^m where n is the degree of the numerator and m is the degree of the denominator.
1. If n<m, then the x-axis, y=0, is the horizontal asymptote.
2. If n=m, then the horizontal asymptote is the line y = ab.
3. If n>m, then there is no horizontal asymptote (there is an oblique asymptote).
Find n and m.n=0m=1
Since n<m, the x-axis, y=0, is the horizontal asymptote.y=0
There is no oblique asymptote because the degree of the numerator is less than or equal to the degree of the denominator.
No Oblique Asymptotes
This is the set of all asymptotes.
Vertical Asymptotes:
x=1/2
Horizontal Asymptotes:
y=0
No Oblique Asymptotes
2x+y=4Subtract 2x from both sides of the equation.
y=4−2x
Rewrite in slope-intercept form.
The slope-intercept form is
y=mx+b, where m is the slope and b is the y-intercept.
y=mx+b
Reorder 4 and −2x.
y=−2x+4
Use the slope-intercept form to find the slope and y-intercept.
Find the values of m and b using the form
y=mx+b.
m= - 2b=4
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: −2
y-intercept: (0,4)
Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y
values.
Find the x-intercept.
x-intercept(s):
(2,0)
Find the y-intercept.
y-intercept(s):
(0,4)
Create a table of the x and y values.
x y
0 4
2 0
Graph the line using the slope and the y-intercept, or the points.
Slope: −2
y-intercept:
(0,4)
Step-by-step explanation:
Hope it is helpful...
Anne can swim 4 laps in 3 minutes. How many laps can she swim in 27 minutes.
Answer:
( 27 x 4 ) /3 = 36 laps
Step-by-step explanation:
the difference of complementary angles is 10 degree. find the measures of the angles.
Answer:
40° and 50°
Step-by-step explanation:
90=(x+10)+x
90=2x+10
80=2x
40=x
Therefore the answer is,
40 and 40+10
40° and 50°
Answer:
50° and 40°
Step-by-step explanation:
Complementary angles sum to 90°
let one angle be x then the other is x - 10
x + x - 10 = 90
2x - 10 = 90 ( add 10 to both sides )
2x = 100 ( divide both sides by 2 )
x = 50
x - 10 = 50 - 10 = 40
The angle measures are 50° and 40°
I need yall to be 1000000% sure of your answers because hmm hmm my grades are sinking faster then the titanic
Answer
1.1056 2.15 min
Step-by-step explanation:
I'm not too certain if the first one is asking for the speed but the second is 15 mins
Find the common factor of the polynomials 5x3+40x2+80x,x4-256
Answer:
(x + 4)
Step-by-step explanation:
5x³ + 40x² + 80x, x^4 - 256
5x ( x² + 8x + 16)
5x (x + 4) (x + 4)
x^4 - 256
a² - b² = (a + b) (a - b)
x² - 4² = (x + 4) (x - 4)
(x² + 16) (x + 4) (x - 4)
I hope this helps!
Can The intersection of two planes can be a line.
The intersection of two planes can be a line. Therefore, it's true.
What is a plane?A plane is a flat, two-dimensional surface that never ends in mathematics. A plane is a point, a line, and three-dimensional space's equivalent in two dimensions.
A line is formed by the intersection of two planes. The planes are parallel if they do not intersect. Due to the endless nature of planes, they cannot meet at a single place. In addition, because planes are flat, they cannot intersect over more than one line.
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Question Help Of 515515 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared to standard gene fragments that can identify the species, 6262% were mislabeled. a) Construct a 9090% confidence interval for the proportion of all seafood sold in the country that is mislabeled or misidentified. b) Explain what your confidence interval says about seafood sold in the country. c) A government spokesperson claimed that the sample size was too small, relative to the billions of pieces of seafood sold each year, to generalize. Is this criticism valid?
Answer:
(0.5848 ; 0.6552)
We are confident that about 58% to 66% of sea foods in the country are Mislabelled.
No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.
Step-by-step explanation:
Sample size, n = 51
p = 0.62
1 - p = 1 - 0.62 = 0.38
n = 515
Confidence level = 90% = Zcritical at 90% = 1.645
Confidence interval = (p ± margin of error)
Margin of Error = Zcritical * sqrt[(p(1-p))/n]
Margin of Error = 1.645 * sqrt[(0.62(0.38))/515]
Margin of Error = 1.645 * 0.0214
Margin of Error = 0.035203
Lower boundary = (0.62 - 0.035203) = 0.584797
Upper boundary = (0.62 + 0.035203) = 0.655203
(0.5848 ; 0.6552)
We are confident that about 58% to 66% of sea foods in the country are Mislabelled.
No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.
City received 3/4 inch of rain on July 31  This represents 3/10 of the total amount of rain this to received in July the equation 3/10r =3/4 can be used to find the amount of rain r in inches  The city received in July how much rain did the city receive in July ?
The amount of rain the city received in July is r = 2.5 inches
Given data ,
City received 3/4 inch of rain on July 31
Now , it represents 3/10 of the total amount of rain this to received in July
So , the equation is represented as A
Now , the value of A is
( 3/10 )r = 3/4
Multiply by 10 on both sides , we get
3r = 30/4
Divide by 3 on both sides , we get
r = 30/12
r = 2.5 inches
Hence , the city received 2.5 inches of rain
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Help it’s an easy question I’m just dumb please help me!
Find the x-intercept of the rational function.
A. (0,-2)
B. (-2,0)
C. (0,5)
D. (5,0)
Please explain how you got your answer. Thanks
Answer:
c
Step-by-step explanation:
c i think
( 1,-2), gradient = -3
Answer:
if you are required to find the equation of a straight line use the formula y-y1= m (x-x1)
y+2=-3(x-1)
y+2=-3x+3
y= -3x+3-2
y -3x+1
hope this helps
Answer:
y = -3x + 1
Step-by-step explanation:
(y -(-2)) = -3(x-1)
y+ 2 = -3x+ 3
y = -3x + 1
Seema can sell 10 sweaters for $70 each, 20 sweaters for $60 each, 30 sweaters for $50 each, 40 sweaters for $40 each, and 50 sweaters for $30 each. Her marginal cost of production is constant at $30 for each additional unit (or sweater) produced. If she behaves like a perfectly competitive producer, what is the number of sweaters she will sell? a. 20 b. 30 C. 40 d. 50
(b) 30. is the correct option. The number of sweaters she will sell is 30.
Marginal cost is the cost incurred in producing one extra unit of a product. Seema sells sweaters for different prices. Her marginal cost of production is constant at $30 for each additional unit produced. We can use marginal cost to determine the number of sweaters Seema will sell.
For this, we must find the point where the price equals the marginal cost. The marginal cost of production is $30, so we know that Seema will sell sweaters until she is no longer making a profit. For each sweater sold, Seema must consider the profit margin which is the difference between the price and the marginal cost of production.The marginal cost curve intersects the price curve at the price level that gives the maximum profit margin.
The price curve is downward sloping, so it will intersect the marginal cost curve at some point.
Marginal cost is constant at $30 per unit. The price Seema charges for selling the sweaters is as follows:
Price for selling 10 sweaters = $70 each.Price for selling 20 sweaters = $60 each. Price for selling 30 sweaters = $50 each.Price for selling 40 sweaters = $40 each.Price for selling 50 sweaters = $30 each.
Now we have to find out the number of sweaters she will sell and for that we can solve the following inequality:
MC ≤ Price - MCI.e., $30 ≤ price - $30$60 + $30 ≤ price ≤ $70 - $30$90 ≤ price ≤ $40$\[\frac{\$60 + \$40}{2}=\$50\]
Hence, the number of sweaters she will sell is 30. Therefore, the correct option is (b) 30.
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