Answer: x= -3
Step-by-step explanation:
4(px+1)=64
4(-5x+1)=64
-20x+4=64
-4. -4
-20x. =60
-20. -20
x = -3
A={a,b,c,d} B={p,q,r,s} find the value of A-B and B-A
Answer:
A-B= (a,b,c,d)-(p,q,r,s)
=( )
B-A =(p,q,r,s)-(a,b,c,d)
( )
Answer:
A - B = { a , b , c , d }B - A = { p , q , r , s }Step-by-step explanation:
Given,
A = { a , b , c , d }
B = { p , q , r , s }
Let's find the difference of two set A and B :
A - B = { a , b , c , d } - { p , q , r , s }
The difference of two sets A and B is denoted by A - B and defined as the set of all the elements of A only which are not in B.
⇒A - B = { a , b , c , d }
Now, let's find the difference of two sets B and A
B - A = { p , q , r , s } - { a , b , c , d }
Similarly, The difference of two sets B and A is denoted by B - A and defined as the set of the all elements of set B only which are not in A.
⇒ B - A = { p , q , r , s }
Hope I helped!
Best regards!!
let x and y be numbers, y ≠ 0 and let n be a positive integer. How is (x/y)^n related to x^n and y^n?
Answer:X∧N and Y ∧N share a variable
Step-by-step explanation: X∧N
Y∧N
they have the last same variable
how to find the surface area and the volume of trapezoidal prisms? (need some formula)
Step-by-step explanation:
Volume of a Trapezoidal Prism. If the prism length is L,trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2
Area of a trapezoid is found with the formula, A=(a+b)/2 x h.
Answer:
To find the surface area, the amount of space on the outside of a solid, of a trapezoidal prism, you'll need to find the area of the trapezoid base and multiply it by two. You'll then add the area of the four rectangles to the area of the two bases. Formula for Volume of a Trapezoidal Prism. If the prism length is L,trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2.
23.
A company manufactures bracelets. The cost C (in dollars) of manufacturing n bracelets is given by the equation C = 8n + 500
The revenue R (in dollars) that is generated from selling n bracelets is given by the equation R = 35n - 0.1n?
The company breaks even when cost and revenue are equal. For which values of n does the company break even?
A. O 10 and 500
В.
25 and 200
C
20 and 250
D.
50 and 100
The values of n which the company break even are option (c) n = 20 and n = 250
How to determine the values of n at the break even point?From the question, the parameters are given as
Cost function, C(n) = 8n + 500
Revenue function, R(n) = 35n - 0.1n²
At the break even point, the functions C(n) and R(n) have the same value
This is represented as
C(n) = R(n)
Substitute the known values in the above equation
So, we have the following equation
8n+ 500 = 35n - 0.1n²
Collect the like terms
-0.1n² + 35n - 8n = 500
So, we have
-0.1n² + 27n - 500 = 0
Divide both sides by -0.1
n² - 270n + 5000 = 0
Factorize
(n -20)(n - 250) = 0
Solve for n
n - 20 = 0 and n - 250 = 0
This gives
n = 20 and n = 250
Hence, the company breaks even at n = 20 and n = 250
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Simplify the expression
5+(-6)^2
Answer:
41
Step-by-step explanation:
5 + (-6)^2
=> 5 + 36
=> 41
I’ll give you 20 points if you help me please
Answer:
f(g(x)) = 2x - 5
Step-by-step explanation:
If f(x) = 2x + 1 and g(x) = x - 3
Then to find the value of f(g(x)) we write x - 3 instead of x in the function f(x)
f(g(x)) = 2 (x-3) + 1 ➡ f(g(x)) = 2x -5
Answer:
[tex]\huge \boxed{f(g(x))=2x+-5}[/tex]
Step-by-step explanation:
The functions are given,
[tex]f(x)=2x+1[/tex]
[tex]g(x)=x-3[/tex]
To find [tex]f(g(x))[/tex], the input for the function f of x will be g of x.
[tex]f(g(x))=2(x-3)+1[/tex]
Expand brackets.
[tex]f(g(x))=2x-6+1[/tex]
Combine like terms.
[tex]f(g(x))=2x-5[/tex]
b) Below is a regular hexagon. A piece is cut out and translated to the opposite side to form an
irregular polygon that will tessellate. On the right, the figure that can tessellate is drawn solid,
and the original hexagon sides are shown as dashed lines. (10 points)
Copyright Edcenuity in
Student Guido (continued)
Perform two translations to the parallelogram below to transform it into an irregular polygon
that can tessellate.
Using inspiration from the hexagon example, we can cut out a side of the parallelogram and move that portion to the opposite side. The cut can be a curve of any kind or it could be a jagged edge like I have done below. The figure tessellates the plane as shown in the last section of the diagram. We can place the figures side by side to fill up a 2D space. Think of it like putting a jigsaw puzzle together in a way.
please help :) Choose the number that is larger than: 1.11 x 10 to the 12 power A. 90,000,000,000 B. 5.66 x 10 to the 11th power C. 1.01 x 10 to the 13th power D. 1.01 x 10 to the 12 power
Answer:
First we need to find the value of 1.11 * 10^12.
We need to solve the exponent first.
10^12 = 1000000000000
Next, we will multiply this by 1.11.
1,000,000,000,000 * 1.11 = 1,110,000,000,000
The value of 1.11*10^12 is equal to 1,110,000,000,000.
We can immediately rule out a), 90,000,000,000 as an answer. We can easily tell that out solution is greater than this answer.
Now we will find the value of option b).
5.66 * 10^11.
We need to solve the exponent first.
10^11 = 100000000000
Next, we will multiply this by 5.66.
100,000,000,000 * 5.66 = 566,000,000,000
This number is not greater than our solution to 1.11 * 10^12. Therefore, option b) is not your answer.
Now we will find the value of option c).
1.01 * 10^13.
We need to solve the exponent first.
10^13 = 10,000,000,000,000
Next, we will multiply this by 1.01.
10,000,000,000,000 * 1.01 = 10,100,000,000,000
This number is greater than our solution to 1.11 * 10^12. Therefore, option c) is your answer.
Hope this helps!
Step-by-step explanation:
Option C. 1.01×10¹³ which is 1010×10¹⁰ is larger than 111×10¹⁰.
How to compare numbers ?Write all the given numbers in same powers of 10 and then compare the base.larger base is the larger number.
According to the given question we have to choose the correct option for a numbers which is larger than 1.11×10¹².
We know 10¹² has 12 zeroes after 1.
In option a 90,000,000,000 it has 10 zeroes so it can be written as 9×10¹⁰
and 1.11×10¹² can be written as 111×10¹⁰ so option A is smaller.
looking at option B. which is 5.66×10¹¹ this can also be written as 56.6×10¹⁰.
Which is gain smaller than 111×10¹⁰.
Option C. which is 1.01×10¹³ which can be written as 1010×10¹⁰ which is larger than 111×10¹⁰.
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You spend $30 20 on 4 CDs Each CD costs the same amount and is on sale for 80% of the original price
2 Write and solve an equation to find how much you spend on each CD. Let p represent the price you pay for each CD
Equation QS-2240
You spent $ 5.5 on each CD
The next day, the CDs are no longer one sale You have $25. Will you be able to buy 3 more CDS?
Yes you will
be able to buy 3 more CDs
Explain your reasoning for part b).
Each CD COSTS
at the regular price, so 3 CDs would cost $
Answer:
You will only be able to buy two at the original price the following day.
Step-by-step explanation:
You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.
If x = original cost of one CD
80% of one CD = 0.8x
0.8x = the price you pay for one discounted CD
You buy 4 of the discounted CDs for $30.40
4(0.8x) = 30.40
solve for x, the original cost of one CD
3.2x = 30.40
x = 9.50
The next day, the CDs are no longer one sale. You have $25. Will you be able to buy 3 more CDs?
25$ / $9.50 = 2.63 CDs
.A straight line passes through point A(2,4) and B(6,12). Find the equation of the perpendicular bisector of line AB (write your answer in the form ax+by=c)
Answer:
x + 2y = 20
Step-by-step explanation:
We require the slope and the midpoint of AB
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = A(2, 4) and (x₂, y₂ ) = B(6, 12)
m = [tex]\frac{12-4}{6-2}[/tex] = [tex]\frac{8}{4}[/tex] = 2
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{2}[/tex]
-----------------------------------
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ [tex]\frac{x_{1}+x_{2} }{2}[/tex] , [tex]\frac{y_{1}+y_{2} }{2}[/tex] ]
Thus midpoint of AB = ( [tex]\frac{2+6}{2}[/tex], [tex]\frac{4+12}{2}[/tex] ) = (4, 8 )
--------------------------------------------
y = - [tex]\frac{1}{2}[/tex] x + c ← partial equation of perpendicular bisector
To find c substitute (4, 8) into the partial equation
8 = - 2 + c ⇒ c = 8 + 2 = 10
y = - [tex]\frac{1}{2}[/tex] x + 10 ← in slope- intercept form
Multiply through by 2
2y = - x + 20 ( add x to both sides )
x + 2y = 20 ← in the form ax + by = c
Patricia deposited $612.40 in a savings account that earns 3.2% simple interest. What is Patricia's account balance after thirteen years?
Answer:
Patricia's account balance after thirteen years is $867.15.
Step-by-step explanation:
It is given that,
Principal on deposited amount is $612.40
Rate is 3.2%
We need to find Patricia's account balance after thirteen years, t = 13 years
This problem is based on the concept of simple interest. Interest is given by :
[tex]I=PRt\\\\I=612.4\times \dfrac{3.2}{100}\times 13\\\\I=\$254.75[/tex]
Net amount = $612.40 + $254.75=$867.15
Find the the domain codomain and range of the graph
Answer:
Domain: All Real numbers
CoDomain : All Real numbers
Range: [tex]\left\{y|y\geq 0 \right\}[/tex]; that is: Real numbers larger than or equal to zero
Step-by-step explanation:
Notice that the graphed function can use any Real number x (from - infinity to + infinity) and produce an output. Therefore, the Domain of the function plotted in graph 3 is : All Real numbers.
The set of possible outputs (CoDomain) is also the set of all Real numbers (notice that the y-axis extends form - infinity to + infinity
But the Range (the actual set of the collection of outputs of the function) is just a subset of the CoDomain consisting of the Real numbers larger than or equal to zero (notice that the drawing of the function touches the x axis and lies completely on the upper half of the plane.
Gerardo compró un servicio de limpieza para su negocio que le cobra $300 por cada uno de los dos primeros servicios y $150 por servicio adicional. Esta vez Gerardo ha requerido 5 servicios en total, por lo que se ha hecho acreedor a una promoción de $100 de descuento, ¿cuánto pagará Gerardo en total por sus servicios?
Answer:
CT= $950
Step-by-step explanation:
Dado la siguiente información:
Servicio= $300 primeros dos
Servicio adicional= $150
Descuento= $100
Para calculate el costo total, tenemos que usar la siguiente formula:
CT= 300x + 150y - 100
x= costo normal
y= costo promocional
CT= 300*2 + 150*3 - 100
CT= $950
Onna received a $80 gift card for a coffee store. She used it in buying some coffee that cost $8.09 per pound. After buying the coffee, she had 39.55 left on her card. How many pounds of coffee did she buy?
Answer:
She bought 5 pounds
Step-by-step explanation:
Original worth of gift card = $80
Balance on card after purchase = $39.55
Amount used for purchase = 80 - 39.55 = $40.45
Next let us determine how many pounds of coffee she bought as follows:
Price of coffee = $8.09 per pound
amount spent on coffee = $40.45
Lett the number of pounds of coffee she bought be x
$ 8.09 = 1 pound
$40.45 = x pounds
since $8.09 = 1 pound
[tex]\$\ 1 = \frac{1}{8.09}\ pounds[/tex]
[tex]\$\ 40.45 = 40.45 \times\ \frac{1}{8.09} \\= \frac{40.45}{8.09}\\ = 5\ pounds[/tex]
Keith has 39 books in his library he brought several books at a yard sale over the weekend he now has 84 in his library how many? Keith has 45 boooks
Subtract original amount from new amount:
84 - 39 = 45
He bought 45 books.
You roll a fair die. What is the probability of rolling a 3 or an even number
Answer:2/3 or 66.666%(don't quote me if I'm wrong about this)
Selma uses a jogging trail that runs through a park near her home. The trail is a loop that is 3/4 of a mile long. On Monday, Selma ran 1/6 the loop in an hour. What is Selma’s unit rate in miles per hour for Monday’s run? In this activity, you will use the common denominator method to calculate a unit rate that involves fractions. Answer the questions that follow to calculate Selma’s unit rate in miles per hour. In this activity, you will use the common denominator method to calculate a unit rate that involves fractions. Answer the questions that follow to calculate Selma’s unit rate in miles per hour. According to the question, the unit rate is to be expressed in which units?
Hello There!!~
The units of per hours is = 4.5
Explanation:
Unit rate in miles per hour is the ratio of total distance covered in miles to total time taken in hour to cover that distance.
L = 3/4
Time taken to cover the loop on monday:-
T = 1/6 hours.
Unit rate in miles per hour :-
V = L/T
=> 3/4 ,1/6 =18/4
18/4 = 4 5
Hope This Helps!! :)
By °~Itsbrazts°~
How might constructions prove to be useful in your life?
Step-by-step explanation:
Constructions are useful in life. From learning it, you are able to use the required tools, and get familiarized with different shapes and angles. This would help you prepare for the task of proving theorems that involved those shapes and angles. It is not the end, ultimately, it prepares you for real life. Constructions are applied in building houses, estates, etc, and constructions of roads, bridges, etc.
for each diagram, determine whether angles 1 & 2 are adjacent angles, heeeelp please :(
Answer:
Diagram 5: Not adjacent angles
Diagram 6: Not adjacent angles
Diagram 7: Are adjacent angles
Diagram 8: Are adjacent angles
Step-by-step explanation:
In order for angles to be adjacent, they need to have all of three things:
1. Have a common vertex
2. Have a common side
3. Must not overlap
Diagram 5 does not have a common side between angles 1 and 2, so it is not adjacent.
Diagram 6 does not even have angles 1 and 2 connected in any way so it is not adjacent.
Diagrams 7 and 8 have all three conditions, so those diagrams are adjacent.
(20 POINTS!) If the point (x, y) is on the y-axis, which of the following must be true? x = 0 or y = 0
Answer:
x = 0
Step-by-step explanation:
because the x coords are still 0 and y is changing.
Subtract 12h+1 from 34h+4 . what is the answer? a.−1/4h+5 b.1/4h+5 c.−1/4h d.1/4h+3
Answer:
D
Step-by-step explanation:
We would like to solve:
(3/4h + 4) - (1/2h + 1)
This is equivalent to:
3/4h + 4 - 1/2h - 1
First, combine like terms; that is, combine the terms with h in them and combine the terms without h in them:
3/4h - 1/2h + 4 - 1
The common denominator for 3/4 and 1/2 is 4, so:
3/4h - 1/2h = 3/4h - 2/4h = 1/4h
Put this back in:
1/4h + 4 - 1
1/4h + 3
The answer is thus D.
~ an aesthetics love
Express the interval shown on the number line in inequality notation.
==============================================
Explanation:
The left endpoint is -2. The right endpoint is 10. Both endpoints are open holes, meaning we do not include them as part of the green shaded solution region. If x is a solution, then the solution can be described as [tex]-2 < x < 10[/tex] which converts to the interval notation [tex](-2, 10)[/tex]. The curved parenthesis says "do not include the endpoint".
Note: this is not ordered pair notation (x,y). Unfortunately math tends to reuse symbols so it might be a bit confusing at first.
If anyone knows how to do this stuff I would love some help (✿◠‿◠)
Answer:
See explanation below
Step-by-step explanation:
(a) The spread of the data is represented by their range,
Adam's Range : 106 - 91 = 15
Miguel's Range : 105 - 86 = 19
As Miguel's Range is greater, his data has the greater spread
(b) The middle 50 percent of both data sets would be the following,
Adam | 103 | 105 | 104 | 106 | 100
Miguel | 88 | 86 | 89 | 93 | 105
And their 50% range would be ...
Adam's 50% Range : 106 - 100 = 6,
Miguel's 50% Range : 105 - 86 = 19
Adam still has the least spread, even in the middle 50%
(c) This proves that their is a small variance in Adam's training times, but a large variance in Miguel's training times (Miguel's data is more likely skewed).
is y=-2+5x a function
Answer:
No
Step-by-step explanation:
Because of the y^2, each value of x will be represented twice on the y-axis. Henceforth, the vertical line will pass through this line twice. THIS IS NOT A FUNCTION. ... It passes the vertical test for function.
weight to the nearest pound of 17 cats:10, 15, 9, 8, 11, 10, 9, 8, 13, 9, 12, 10, 13, 11, 9, 12, 10
Answer:
Step-by-step explanation:
+ si
which of the following equations does not represent a true statement
Answer:
C) -6-(-3)=3
Step-by-step explanation:
-6-(-3)=
-6+3=
-3 (Not positive 3)
So the third one is incorrect
At a baseball game, hot dogs cost $2.25 and drinks cost $1.75. The total cost, t, for h hot dogs and drinks can be described by the equation.
T=2.25h+1.75d
•a. Rewrite the equation to find d.
•b. Which properties allow you to isolate d?
•c. If Costas spent $18.25 and bought 5 hot dogs, how many drinks did he buy?
Answer:
The answer is below
Step-by-step explanation:
a) T=2.25h+1.75d
To rewrite the equation to find d, we have to make d the subject of the formula.
T=2.25h+1.75d
Subtract 2.25h from both sides:
T - 2.25h = 2.25h + 1.75d - 2.25h
1.75d = T - 2.25h
Divide both sides by 1.75
1.75d/1.75 = (T - 2.25h) / 1.75
d = (T - 2.25h) / 1.75
b) Additive property and law of division
c) The money spent (T) = $18.25 and the number of hot dogs (h) = 5. To get the number of drinks, substitute the value of h and T in the equation d = (T - 2.25h) / 1.75. Hence:
d = (T - 2.25h) / 1.75
d = (18.25 - 2.25(5)) / 1.75
d = (18.25 - 11.25) / 1.75 = 7 / 1.75
d = 4
The number of drinks that can be bought is 4
7. 4y(5y - 11) – 2y(3y + 10)
Answer:
[tex]14y^{2} -64y[/tex]
Step-by-step explanation:
Hello!
4y(5y - 11)
Distribute the 4y
4y * 5y = 20y^2
4y * -11 = -44y
Put it together
20y^2 - 44y
2y(3y + 10)
Distribute the -2y
-2y * 3y = -6y^2
-2y * 10 = -20y
Put it gether
-6y^2 - 20y
Put it all together
20y^2 - 44y - 6y^2 - 20y
Combine like terms
14y^2 - 64y
The answer is [tex]14y^{2} -64y[/tex]
Hope this helps!
prove that the points (2,-2),(-2,1) and (5,2) are the vertices of a right angled triangle. also find the area of this triangle
Answer:
1st use distance formula for each side of the triangle
then use PT for checking if they are equal then u will get it as equal
then use area of triangle formula u will get the ans explanation:
Which of the following is a statement? What talent! He is talented. Is he talented?
Answer:
he is talented
Step-by-step explanation: