Answer:
Step-by-step explanation:
x - 3 = 5
(x -3) +3 = 5+3
x - 3 + 3 = 8
so,
x = 8
The Valdez family left at noon for a 4-hour trip to viit relative. They topped 1 hour for lunch and 2 hour to viit an amuement park. What time did they get to their relative' houe?
The Valdez family left at noon for a 4-hour trip to visit relative. They topped 1 hour time for lunch and 2 hour to visit an amusement park.The Valdez family would have arrived at their relative's house at 5 pm.
1. The Valdez family left at noon, so they had 12 hours to get to their relative's house.
2. They stopped for 1 hour for lunch, so they had 11 hours left.
3. They then stopped for 2 hours at the amusement park, so they had 9 hours left.
4. 9 hours later would be 9 pm.
5. However, since it is summer, the clocks are set to daylight savings time and it is currently one hour ahead, so the time is actually 5 pm.
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A deck of cards contains red, yellow, and blue cards. The probability of selecting a red card out of a deck is 1 9 . The probability of selecting a yellow card is 3 times the probability of selecting a blue card. What is the probability of randomly selecting a blue card on your first try?
We are given that the probability of selecting a yellow card is 3 times the probability of selecting a blue card, so we can write the following equation:
yellow = 3 * blue
We also know that the sum of the probabilities of selecting a red, yellow, or blue card must be equal to 1, so we can write the following equation:
red + yellow + blue = 1
Substituting the expression for yellow from the first equation into the second equation, we get:
red + 3 * blue + blue = 1
Combining like terms, we get:
red + 4 * blue = 1
We are given that the probability of selecting a red card is 1/9, so we can substitute this value into the equation:
1/9 + 4 * blue = 1
Solving for blue, we get:
blue = (1 - 1/9) / 4
blue = (8/9) / 4
blue = 2/9
Therefore, the probability of selecting a blue card on the first try is 2/9.
Which expression is equivalent to 3(−4.2y − 13.6)?
A. 1.2y − 13.6
B. 1.2y − 10.6
C. −12.6y − 13.6
D. −12.6y − 40.8
Answer:
the anwser is b
Step-by-step explanation:
The scale below is balancedwhch meas they are equal
The addentical ball and small box weigh the same amount as the big box
How much does each ball weigh?
Answer:
x weigh of ball
2x+40=160
2x=120
x=60g
The solution is 60 grams
The size of each of the balls is given by the equation x = 60 grams
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the size of the balls be represented as = x
The number of balls = 2
So , the total size of the balls = 2x
Now , the equation will be
The weight of all the elements = 160 grams equation (1)
The weight is balanced by = 40 grams + 2x equation (2)
Now , equation (1) = equation (2)
Substituting the values in the equation , we get
160 = 2x + 40
On simplifying the equation , we get
Subtracting 40 on both sides of the equation , we get
2x = 120
Divide by 2 on both sides of the equation , we get
x = 60 grams
Therefore , the value of x is 60 grams
Hence , the size of the ball is 60 grams
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Hassan buys an apartment for $78 000.
After one year the value decreases by 5%.
Work out the new value of Hassan’s apartment.
Answer:
3900 is decreased.$74100 is new value
Step-by-step explanation:
5% of 78000 subtracted by 78000...
(12a - 5b) - (a + 6b)
The answer is 11(a - b), To solve this expression, we need to perform the subtraction operation on the terms inside the parentheses. First, we subtract the term "a + 6b" from "12a - 5b". This gives us 11a - 11b. Then, we can simplify this expression by combining the like terms 11a and -11b to get 11a - 11b = 11(a - b). This is the final answer.
the tangent line to a certain curve at any point p(x, y) has an x-intercept equal to 3 4 x. this curve also passes through the point (1, 16). find the equation of this curve.
At any point p(x, y), the tangent line to a particular curve has an x-intercept of 3 4 x. The point is also traversed by this curve (1, 16). The equation of the curve is y - 16 = (3/4)(x - 1)^2
To find the equation of the curve, we first need to find the equation of the tangent line at point P(x, y).
Since the x-intercept is 3/4x, the equation of the tangent line is
y - y_p = (3/4)(x - x_p).
We substitute the given point (1, 16) in the equation to find the value of y_p and x_p which are 16 and 1 respectively.
y - 16
= (3/4)(x - 1).
This equation is the equation of the curve.
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Drag each tile to the correct location on the inequality. Each tile can be used more than once.
Consider the graphed function.
The domain of the function y = 2x + 5 is [-4, 1), and the range of the function is [5, 7). The graph is also attached below.
What is a graph?A collection of objects is arranged in a graph, where some object pairings are conceptually "linked." Each pair of connected vertices is referred to as an edge, and the objects are represented by mathematical abstractions known as vertices.
Given:
As you can see from the graph, the coordinates of the line are (0, 5) and (1,7),
Calculate the equation of the line as shown below,
y - 5 = (7 - 5) / (1 -0) (x-0)
y - 5 = 2 (x +0)
y = 2x + 5
The domain of the above equation can be determined from the graph,
Domain = [-4, 1)
Range = [5, 7)
The graph is also attached below.
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Jordan and Raj each bake 7 batches of muffins. Jordan makes 18 muffins per batch, and Raj makes 15 muffins per batch. They combine their muffins and put all of them into boxes. They fill as many boxes as possible with 6 muffins each. They place the remaining muffins in the last box. How many full boxes do they make, and how many muffins will be in the last box?
Answer:
38 full batch with a remainder of 3
Step-by-step explanation:
18*7 + 15*7 = 231
231/6 = 38 r3
The functions f(x) and g(x) are shown on the graph.
f(x) = x²
What is g(x)?
10
A. g(x) = 2x²
B. g(x) = (x - 2)²
C. g(x) = (¹ x)²
D. g(x) = (x + 2)²
f(x)
(2,8)
The equation of the transformed function is g(x) = -x² - 2
How to describe the transformation from the parent function?From the question, we have the following function that can be used in our computation:
f(x) = x² -- parent root function
When the graph is examined (see attachment), we have the transformation to be
g(x) = reflect f(x) across the x-axis and a downward shift of 2 units.
Mathematically, this can be represented as
g(x) = -f(x) - 2
Substitute the known values in the above equation, so, we have the following representation
g(x) = -x² - 2
Hence, the transformed function is g(x) = -x² - 2
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3x + 5 < 2x - 8 is:
all values more than -13.
all values less than -13. all values less than 3. all values less than -3.
Answer:
all values less than -13
Step-by-step explanation:
3x + 5 < 2x - 8
3x + 5 - 5 = 2x - 8 - 5 ==> isolate x by subtracting 5 on both sides
3x < 2x - 13 ==> simplify
3x - 2x < 2x - 2x - 13 ==> subtract 2x from both sides to move x to the left
side of the inequality
x < -13 ==> simplify
Hence, the answer is all values less than -13.
A Departmental Store ha 10 rack of confectionery item 5 rack of bread item and 15 of grocery item calculate the percentage of all item in the Departmental Store and which item i in maximum
Total no of racks in the store is 30 and grocery item is maximum.
What is percentage?A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
How to find percentage?Divide the amount by the total value to get the percentage, then multiply the resulting number by 100.
Racks of confectionery items = 10
Racks of bread items = 5
Racks of grocery items = 15
The total no of racks in the departmental store is 30
Using the percentage formula we will calculate the percentage of each item
percentage of confectionery items rack =no. of confectionery racks/total no. of racks x100
=10/30x100=33.33%
percentage of bread items rack = no. of bread racks/total no. of racks x 100
= 5/30x 100=16.66%
percentage of grocery items rack = no. of grocery racks/total no. of racks x 100
= 15/30 x 100 = 50%
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find the centroid of the region in the first quadrant bounded by the given curves. y = x8, x = y8
The centroid of the region in the first quadrant bounded by the given curves is (81/170, 81/170).
In the given question, we have to find the centroid of the region in the first quadrant bounded by the given curves.
The given curves are:
y = x^8, x = y^8
We can write the curves as
y = x^8...........................(1)
y = x^{1/8}.......................(2)
Now putting the value of y from equation 1 in equation 2, we get
x^8 = x^{1/8}
Now simplifying,
x^{64} = x
x^{64}-x = 0
x(x^{63} - 1) = 0
After equating equal to zero,
x = 0, x = 1
My = [tex]\int_{a\rightarrow b}x[f(x)-g(x)]dx[/tex]
My = [tex]\int_{0}^{1}x[x^{1/8} - x^{8}]dx[/tex]
My = [tex]\int_{0}^{1}[x^{9/8} - x^{9}]dx[/tex]
My = [tex][(8/17)x^{17/8} - (1/10)x^{10}]_{0}^{1}[/tex]
My = (8/17)-(1/10)
My = 63/170
Mx = 1/2[tex]\int_{a\rightarrow b}[(f(x))^2-(g(x))^2]dx[/tex]
Mx = 1/2[tex]\int^{1}_{0}[x^{1/4} - x^{16}]dx[/tex]
Mx = 1/2 [tex][(4/5)x^{5/4} - (1/17)x^{17}]^{1}_{0}[/tex]
Mx = (1/2)[(4/5)- (1/17)]
Mx = 63/170
M = [tex]\int_{a\rightarrow b}[f(x)-g(x)]dx[/tex]
M = [tex]\int^{1}_{0}[x^{1/8} - x^{8}] dx[/tex]
M = [tex][(8/9)x^{9/8} - (1/9)x^{9}]^{1}_{0}[/tex]
M = [(8/9) - (1/9)]
M =7/9
Center of mass(x',y') = (My/M, Mx/M)
Center of mass(x',y') = ((63/170)/(7/9), (63/170)/(7/9))
Center of mass(x',y') = (81/170, 81/170)
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Evaluate the expression for t = 9 and u = 2.
t + u =
Which expression is equivalent to (ab8)4?
a5b12
ab12
a4b32
ab32
Answer:
The answer is ab32
Step-by-step explanation:
ab x 8 x 4 = ab32
Answer: a^4b^32
Step-by-step explanation: (ab^8)^4 = (ab^8)(ab^8)(ab^8)(ab^8) = a^4b^32
evaluate the integral. (use c for the constant of integration.) x2 15 + 6x − 9x2 3/2 dx
On integrating the function f(x), we get - (x³/45) + (3x²) - (2x³) + C.
What is integration?An integral is a function, of which a given function is the derivative. Integration is basically used to find the areas of the two-dimensional region and computing volumes of three-dimensional objects. Mathematically, we can write -[tex]$\int_a^b \! f(x) \, \mathrm{d}x.[/tex]
Given is the function, as follows -
f(x) = (x²/15 + 6x - 9x²/{3/2})
The given function is -
f(x) = (x²/15 + 6x - 9x²/{3/2})
∫f(x) = ∫(x²/15 + 6x - 9x²/{3/2}) dx
∫f(x) = ∫(x²/15)dx + ∫(6x)dx - ∫(6x²)dx
∫f(x) = (1/15)(x³/3) + C₁ + (6)(x²/2) + C₂ - (6)(x³/3) + C₃
∫f(x) = (x³/45) + (3x²) - (2x³) + {C₁ + C₂ + C₃}
∫f(x) = x³/45) + (3x²) - (2x³) + C (C = C₁ + C₂ + C₃)
Therefore, on integrating the function f(x), we get (x³/45) + (3x²) - (2x³) + C.
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Machine fills rate 135 containers per minute how long will it take to fill 1000 containers at the same rate
HOW?
HOW?
7.4
Answer:
7.4 mins
Step-by-step explanation:
135 -----> 1 min
1000 ----> x
1000/135 mins = x
= 7.4 mins
Answer:
To determine how long it will take to fill 1000 containers at a rate of 135 containers per minute, you can use the formula: time = number of containers / filling rate. In this case, the filling rate is 135 containers per minute, and the number of containers you want to fill is 1000. Plugging these values into the formula, we get: time = 1000 / 135 = 7.41 minutes.
helloo pls help me!!
Answer:
l = 2.55 meters
Step-by-step explanation:
Tunnels are usually in cylinder shape
Surface Area of Cylinder:
l = s/(2πr)
l = 48/(2π(3)) ==> plug in known values
l = 48/(6π)
l = 8/π
l = 2.546 meters
l = 2.546 meters
l = 2.55 meters
Kayla works at a trampoline gym that hosts birthday parties. Parties are priced at $75 plus $12.50 per guest. Kayla rang up a customer who paid $200 for a party. How many guests were at the party?
Write and solve an equation to find the answer
Answer:
10 Guests
Step-by-step explanation:
200 - 75 = 125 (We need to find a number that will spend 125 dollars)
125 / 12.50 = 10
12.50 x 10 = 125
So the answer is 10
What is a reflection rule that maps each triangle and its image?
The equation of the line is y = x. Then the rule of reflection is (x, y) ⇒ (y, x).
What is a reflection of the point?It is the image of the point which is located in the opposite direction of a given point.
The rule of the refection is given will be
Firstly, the rule for reflecting a point about the line y = x is;
While reflecting on the line y = x, we get the reflected points by swapping the coordinates.
The equation of the line that passes through (0, 0) and (1, 1) is given as,
y - 0 = [(1 - 0) / (1 - 0)](x - 0)
y = x
The equation of the line is y = x. Then the rule of reflection is given as,
(x, y) ⇒ (y, x)
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what kind of sampling technique is this? a) random sampling. b) stratified random sampling. c) cluster random sampling. d) systemic random sampling. e) a combination of random, stratified and cluster sampling.
The resulting sampling technique is Stratified sampling.
As in the concept of statistical study, sampling methods refer to how we select members from the population to be in the study and if a sample isn't randomly selected, it will probably be biased in some way and the data may not be representative of the population.
Here we need to find the type of sampling method.
Here the Stratified random sampling involves classifying the units of the population into different strata.
And the give units in each stratum should possess similar characteristics which then allows the researcher to pick a sample from each.
Then the stratified sampling approach can be divided into proportionate stratified sampling and disproportionate stratified sampling
Therefore, these method is employed in cases where the population is heterogeneous.
So, option (b) is correct.
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12)
60°
-5+ 13x
Please help
-5 + 13x = 60
13x = 65
x = 5
CHECKING:
-5 + 13(5) = 60
-5 + 65 = 60
60 = 60
Step-by-step explanation:
heart and star pls <3 brainliest will be appreciated <3(っ◔◡◔)っ -{ elyna s }-Explain three of seven phases of the impulse purchase cycle
Three of the seven phases of the impulse purchase cycle. The other phases include antecedent, search, and selection.
The impulse purchase cycle is a model that describes the process of making an impulsive purchase. It is typically divided into seven phases:
Antecedent: This phase is characterized by a need or desire for something. It can be triggered by a variety of factors, such as boredom, hunger, or a sudden craving for a particular product.
Search: In this phase, the consumer begins to actively search for a product that will satisfy their need or desire. They may search online or in physical stores, and they may consider various options before deciding on a product.
Selection: In this phase, the consumer narrows down their options and selects a specific product that they want to purchase. They may consider factors such as price, quality, and convenience when making their decision.
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Is this a function or not a function?
(6, 3) (5, 3) (4, 3) (3, 3)
Solve the equation.
9( x− 2)²-4=14
Your answer would be x = 2 ± √2
Step-By-Step Solution:
Step one:
9x² - 36x + 32 = 14
Step two:
9x² - 36x + 32 - 14 = 14 - 14
9x² - 36x + 18 = 0
Now we use the quadratic formula.
Step three:
Plug the numbers into the quadratic formula.
x = [tex]\frac{-b±\sqrt{b^{2} - 4ac } }{2a}[/tex]
x = [tex]\frac{-(-36 ± \sqrt{(-36^{2})-4(9)(18 } )}{2(9)}[/tex]
x = [tex]\frac{36 ± \sqrt{648} }{18}[/tex]
x = 2 + √2 or x = 2 - √2
Answer:
(2 + √2; 2 - √2)--------------------------------
Given equation:
9(x - 2)² - 4 = 14Solve it in below steps:
9(x - 2)² - 4 = 14 Add 4 to both sides9(x - 2)² = 18 Divide both sides by 9(x - 2)² = 2 Square root both sidesx - 2 = ± √2 Add 2 to both sidesx = 2 ± √2 AnswerPLSSS HELPP ASAPPP
On the diagram below, a boat, represented by point A, is 450 feet away from a buoy, represented by point B. Another buoy is located at point C. The three points form a right triangle with the measure of <
A equal to 21.3°
The distance between two buoys by the trigonometric function will be 175.48 feet.
What is a trigonometric function?The fundamental 6 functions of trigonometry have a range of numbers as their result and a domain input value that is the angle of a right triangle.
The trigonometric function is very good and useful in real-life problems related to the right-angle triangle.
As per the given situation is making a right angle triangle.
By tan trigonometric function,
tan21.3° = BC/450
BC = 175.48 feet
Hence "According to the trigonometric function, there will be 175.48 feet between two buoys.".
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Select the correct systems of equations. Identify the systems of equations that have a as their point of intersection.
We can identify a correct system of equations after draw the graph of the system. The point of intersection indicates the correct solution of the system.
What is the system of equation?Two or more equations which have the same variables, and we can use these all together. The equations are called a set of equations. We get the solution from the system while plotting in the XY coordinate system.
Such as we have two or more linear equations, and we solve each equation and draw a graph for each. We will notice a point of intersection of the straight lines and that refers the solution of the system of equation.
How can we identify a system of equation that have a point of intersection in the graph?There are many sets or system of equation. Some systems have infinity many solutions and graph of the equations never intersect each other. In the next, there are system of equations such as a set of linear function from where we get a point of intersection after plotting the graphs together. The line of intersection is the correct solution of the system.
On the other hand, there are some sets which have no solution, and they are called inconsistent.
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Use factoring to prove that 16⁵+16⁴ is divisible by 17.
Answer:
To prove that 16^5+16^4 is divisible by 17 using factoring, first rewrite the expression 16^5+16^4 using the distributive law as 16^4*(16+1). Then, note that 16+1 is divisible by 17. Since 16^4 is also divisible by 17, the expression 16^4*(16+1) is also divisible by 17. Therefore, 16^5+16^4 is divisible by 17.
The data represent the number of mines traveled by 10 delivery drivers in a community for one day.
218,223,211,299,231,245,261,278,212,233
What is the first quartile of miles driven?
A. 218
B. 261
C. 215
D. 232
The first quartile of miles driven is 218 miles.
What are quartiles in a data set?Quartiles are three values that divide the sorted data into four parts, each of which has the same observation value.
First quartile: Also known as Q1 or lower quartile. Second Quartile: Also called Q2 or median. Third Quartile: Also known as Q3 or upper quartile.The four quarters that divide the dataset into quartiles are:
At least 25% of the number.The next lowest 25% of the numbers (up to the median).25% of the second highest number (above the median).Up to 25% of the number.Let's arrange the data in an order:
211,212,218,223,231,233,245,261,278,299
Since the data has 10 observation, for which the median will be simply the average of two middle terms i.e.5th and 6th term dividing the data in two halves.
Median: 232
First half: 211,212,218,223,231
Second half: 233,245,261,278,299
As, quartiles are the medians of each half,
First quartile: 218
Third quartile: 261
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pls help i’ll give brainlist to right answer
Answer:
i believe its 5+n ≤ -7
Step-by-step explanation:
the sum of 5 and a number(n) would be 5+n, and no more woukd be the ≤ sign, which would lead to -7