The total cost of the DVDs after the markup, given an original price of $40, is $50.
To simplify the expression C + 0.25c, we can combine like terms.
C + 0.25c = (1 + 0.25)c = 1.25c
Therefore, the simplified expression is 1.25c.
To determine the total cost of the DVDs after the markup, we need to substitute the original price of $40 into the simplified expression.
Total cost = 1.25c
Since the original price is $40, we can substitute c = 40 into the expression:
Total cost = 1.25 * 40
Total cost = $50
Therefore, the total cost of the DVDs after the markup, given an original price of $40, is $50.
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A rectangular shaped tank measures 42 1/2 inches in length, 18 inches in width, and 6 1/8 inches in depth. What is the total surface area of this tank
Answer:
2271.12 in²
Step-by-step explanation:
Surface area of rectangular prism:\(\sf l = length = 42 \dfrac{1}{2}=\dfrac{85}{2} \ in \\\\\\w =width = 18 \ in\\\\h = depth = 6\dfrac{1}{8}=\dfrac{49}{8} \ in\)
\(\boxed{\text{\bf Surface area of rectangular prism = 2*(lw + wh + hl)}}\)
\(\sf = 2*\left (\dfrac{85}{2}*18 + 18*\dfrac{49}{8 }+ \dfrac{49}{8}*\dfrac{85}{2}}\right)\\\\\\=2*\left(85*9 + 9*\dfrac{49}{4} +\dfrac{49*85}{16}\right)\\\\=2*\left(765 +110.25 + 260.3125 \right)\\\\= 2 *1135.56\\\\= 2271.12 \ in^2\)
**WILL MARK BRAINLIEST AND GIVE 30 POINTS**
Graph the equations y=-1/2x+3 and y=2x-2 in the applet below.
1) After you graph the two lines, be sure to take a screenshot of your work and include it in your answer below.
2) What is the solution to the system of equations?
3) Prove that the answer you provided in part 2 is correct, by substituting the solution into the original equations. Be sure to show all your work.
The graph the system of linear equations on a coordinate plane is added as an attachment and the solution is (2, 2)
How to graph the system of linear equations on a coordinate plane?A system of linear equations is a collection of at least two linear equations.
In this case, the system of equations is given as
y=-1/2x+3 and y=2x-2
Rewrite the equations in the system of equations as follows:
So, we have the following representation
y = -1/2x + 3
y = 2x - 2
Next, we plot the graph of the system of equations
See attachment for the graph of the system of equations
The solution to the systemIn this case, the point of intersection of the equations represent the solution to the system
From the graph, the lines intersect at (2, 2)
This means that the solution to the system of equations is (2, 2)
Proof of the solutionRecall that
y = -1/2x + 3
y = 2x - 2
Solution = (2, 2)
So, we have
2 = -1/2 x 2 + 3 = 2 --- true
2 = 2 x 2 - 2 = 2 --- true
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What is the volume of a sphere with a diameter of 7.9 ft, rounded to the
nearest tenth of a cubic foot?
PLEASE HELP DUE TODAY
Evaluate
3^ square root5 square root5
divided by 3^ square root 5 5^
Answer:
It's the last option: 5^-5/6.
Step-by-step explanation:
Converting to fractional exponents:
= 5^1/3 * 5^1/2 / 5^(5*1/3)
= 5^5/6 / 5^5/3
= 5^(5/6 - 5/3)
= 5(5/6 - 10/6)
= 5^-5/6
Hello could someone answer this? Thank you!
Step-by-step explanation:
m arc AD = (2×108) - 142 = 216-142= 74°
m<A = 180-108= 72°
What is the answer for this equation or problem? y+6=52 and what does y equal.
Answer: y=46
Step-by-step explanation:
Subtract 6 from either side to ensure that the y is alone. This then equals y=52-6.
52-6= 46
So therefore, y=46
Answer:
y=46
Step-by-step explanation:
We are given the equation:
y+6=52
and asked to solve for y. Therefore, we must isolate y on one side of the equation.
6 is being added to y. The inverse of addition is subtraction. Subtract 6 from both sides of the equation.
y+6-6=52-6
y=52-6
y= 46
Let’s check our solution. Plug 46 in for y and solve.
y+6=52
46+6=52
52=52
This checks out, so we know our solution is correct.
The solution to the equation y+6=52 is y=46
I need help friends! Pls, help me I will review it once you answered :)
0.5 ( 5 − 7 x ) = 8 − ( 4 x + 6 )
Answer:
Well,
\(0.5(5-7x)=8-(4x+6)\\-3.5x+2.5=-4x+2\\0.5x+2.5=2\\0.5x=-0.5\\x=-1\)
Step-by-step explanation:
Hope this helps!^^
Answer: -1
Step-by-step explanation:
first you want to simplify 0.5 (5-7x) which will get you 2.5 - 3.5x
then you will do the same for the other side move the xs to one side then treat it like any other problem
can anyone help i don’t know how to do it and it’s GEMDAS not PEMDAS?
Answer:
GEMDAS rate. (Abbreviation) A mnemonic used to the order of operations in math problems; Grouping (such as parentheses), Exponents, Multiplication, Division, Addition, Subtraction.
Step-by-step explanation:
its pemdas just with a different name!!
do you still need help?
Select the correct answer,
Which value of p makes this equation true?
1+1
o p=1
p=0
p=1
The equation has no solution
Submit
Pe
6
Answer:
p=‒1
Step-by-step explanation:
the answer is p=‒1
because ‒1+1/3=‒1+1/4
0/3 =0/4
0=0
i hope this helps you
Answer:
the answer is p=‒1
because ‒1+1/3=‒1+1/4
0/3 =0/4
0=0
Step-by-step explanation:
(05.05 MC)
The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 6 inches? (5
points)
Answer:
h = 8 inches
Step-by-step explanation:
the area (A) of a triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the height )
given A = 24 and b = 6 , then
\(\frac{1}{2}\) × 6 × h = 24 , that is
3h = 24 ( divide both sides by 3 )
h = 8 inches
22. Find three consecutive odd numbers such that the sum of five times the smaller number and twice
the larger number is 33 more than six times the median number.
Answer:
The numbers are 37, 39 and 41.
Step-by-step explanation:
Let the smallest number be \(x\\\).
Then the other numbers will be \(x+2, x+4\) (as they are consecutive odd numbers, their difference will be 2).
As per the given statement:
LHS(Left Hand Side) : Sum of five times the smaller number and twice the larger number.
i.e. five times the smaller number = \(5\times x\)
twice the larger number = \(2 \times (x+4)\)
Their sum:
The Left Hand Side becomes:
\(5x+2(x+4)\)
RHS(Right Hand Side):
33 more than six times the median number:
i.e. \(6\times(x+2) +33\)
Equating LHS and RHS:
\(5x+2(x+4) = 6x+12 +33\\\Rightarrow 7x+8=6x+47\\\Rightarrow \bold{x =37}\)
Therefore, the numbers are 37, 39 and 41.
g(x) = x² + 3h(x)=-4xFind (g/h)(x)
We need to find
\(\frac{g}{h}(x)=\frac{x^2+3}{-4x};x\ne0\)Please write the two-column proof for the following.
The two-column proof for the given statement are as follows:
Statement Reason
AB = 2x + 4 Given
AC = 3x Given
AD = AC + CD Segment addition postulate
AD = 3x + x + 4 Substitution using statements 2 and 3
AD = 4x + 4 Simplification
What are line segments?A line segment in geometry has two different points on it that define its boundaries. A line segment is sometimes referred to as a section of a line that links two places.
The difference between a line and a line segment is that a line has no endpoints and can go on forever in either direction. A ray has only one endpoint and an endlessly long another end, as opposed to a line segment that has two ends.
A line is a collection of points forming a one-dimensional geometry and infinitely in either direction. The figure below depicts a line. A line segment in geometry has two different points on it that define its boundaries. A line segment is sometimes to as a section of a line that links two places.
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If f(x) = x + 1, and g(x) = 2x
Answer:
B. (f-g)(x)=4^x-1-2x+11
(f-g)(x) = (4^x-1+6) - (2x-5)
apply like terms while retaining order of operations
6 - (-5) = 11
4^x - 1 - 2x + 11
Step-by-step explanation:
Answer:
f(g(x)) = 2x + 1
Step-by-step explanation:
Substitute x = g(x) into f(x) , that is
f(g(x))
= f(2x)
= 2x + 1
2x + 3y = 23
-x+10y = 46
Answer:
x=4 y=5
Step-by-step explanation:
Find the equation of a line with each of the following characteristics. a) parallel to the line y = 3x + 5 and has a y-intercept of -1 b) perpendicular to the line y = 5x - 1 and passes through the point (10, 8) c) perpendicular to the line y = 1⁄3x + 4 and has an x-intercept of 2.
Answer:
y = 1/2x - 1
Step-by-step explanation:
When you put all three equations from the question into a graph and then input the equation i just gave you it will be perpendicular to line B & C, also it will be parallel to line A. Finally you can check yourself that it also has a y-intercept of (0,-1) & an x-intercept of (2,0). Hopefully this helps out & gets brainliest. xD
help.........................
Answer:
solution
here,
Step-by-step explanation:
f={(2,1/2), ( 3, 1/3) , (4, 1/4)}
Range = { / (\ frac 12\) , \ (\ frac 13\) ,
\( \ frac 14\ )}
Inverse function ( f-^1 ) = {( 1/2, 2) ,( 1/3 ,3) , 1/4, 4 )} is the required answer
1. What is the m2<5? Explain how you know. (2 points)
2.What is the measure of the sum of the angles in a triangle? (2 points)
3. L3 is in a triangle with L4 and L5. Write and solve an equation to find the m L3. (2 points)
4. What is the measure of a straight angle? (2 points)
5. L2 is in a straight line with L1 and L3. Write and solve an equation to find the m L2 (2 points)
each tile in the model represents 1/4. How many titles make a group of 3/4
Answer:
3 tiles
because 1/4+1/4+1/4=3/4
I hope this helps you!
find the value of y in the diagram below.
9514 1404 393
Answer:
5
Step-by-step explanation:
The diagram shows that 4y = 20.
Then y is one of 4 equal parts, so y = (1/4)(20) = 5.
The value of y is 5.
Find the inverse function. f(x) = Vx - 1+4
Answer:
f^-1(v)=v/x-3/x
Step-by-step explanation:
The inverse of the function f(x) = \(\sqrt[3]{x-1} + 4\) Is f⁻¹(x) = (x - 4)³ + 1.
What is a function?Each element of X receives exactly one element of Y when a function from one set to the other is used. The sets X and Y are collectively referred to as the function's domain and co-domain, respectively.
Given:
f(x) = \(\sqrt[3]{x-1} + 4\)
y = \(\sqrt[3]{x-1} + 4\)
Calculate the inverse of the function as shown below,
Replace x with y,
x = \(\sqrt[3]{y-1} + 4\)
x - 4 = \(\sqrt[3]{y- 1}\)
Cube both sides,
(x - 4)³ = y - 1
y = (x - 4)³ + 1
Thus, f⁻¹(x) = (x - 4)³ + 1
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Frequent food questionnaires (FFQ) are a simple way to obtain information on the foods individuals consume by asking them questions about typical amounts of food consumed in a day or week or month. A more accurate picture is obtained by obtaining a detailed food diary (DR) for several days, randomly chosen over a certain time period. The data obtained from a frequent food questionnaire can be compared with the food diary to assess the validity of the questionnaire. The correlation between alcohol consumption from the food questionnaire and diary was r = 0.89 based on seven individuals. Based on the seven individuals for whom data is available, which statement is INCORRECT?DR8.26FFQ1.680.83020.1315.111.167.497.1812.841.76022.6625.06All of the answer options are correct.Because r > 0, the amount that is truly consumed is always larger than what is stated on the FFQ.Typical consumption as stated on a FFQ is positively associated with what is actually consumed.The FFQ is a reasonable tool to obtain information on the amount of alcohol consumed by individuals.
The amount the is truly consumed is always larger than what is stated on the FFQ. Hence, it is the incorrect statement for the indicated correlation.
What is correlation?
To represent the relationship between continuous variables, correlation is utilized. A numerical value called the correlation illustrates the connection between two variables. The sign affects the kind of relationship that exists between the variables. A direct or positive association would result if the sign is positive. It would be detrimental otherwise.
The correlation is a number which indicates relationship between two variables.
A correlation is used to test the relationship between continuous variables.
A correlation coefficient has a value between -1 and 1 this means there is a perfect negative or positive correlation. These are very high correlation examples.
A positive correlation does not imply that what is truly consumed is always larger than what is stated on the FFQ.
A positive correlation coefficient only implies that with a change in diary readings, the food questionnaire reading will also change in the same manner.
However, this does not reflect anything on the true consumed values and therefore, it cannot be judged whether the truly consumed amount will be larger or not.
The provided options are analyzed by the fact that the positive correlation means the change in the variables is direct rather than indirect.
The positive correlation means the direct change in the variables. Hence, the option is an incorrect one.
The correlation only represents whether the two variables have a positive or negative relationship. It does not tell anything about whether one value is greater or not.
Since, r > 0 the amount the is truly consumed is always larger than what is stated on the FFQ.
Hence, it is the incorrect statement for the indicated correlation.
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I have to find this angle but i really don’t know how and there is no answer when I search pls help
Answer:
x=38
Step-by-step explanation:
let we say the supplimentary y then
y+83=180
y=180-83
y=97x+y=125 b/c y and x are remote angles then
97+x=125
x= 125-97
x=28
Plzzz help meeee plzzzzzz
Answer:
a) $560
b) 80%
c) $1134
Step-by-step explanation:
a)The profit is the difference between selling price and cost price:
profit = $1260 -700 = $560
__
b)As a fraction of the cost price, the profit is ...
$560/$700 × 100% = 80% . . . . of the cost price
__
c)A 10% discount from the selling price makes it ...
$1260 × (1 -10%) = 0.90×$1260 = $1134
A student will pay $1134 for a calculator.
Functions!!!
Pls help my teacher didn’t do her job and teach
Answer:
1=yes
2=no
3=no
4=no
5=yes
6=yes(im not sure on this last one)
Step-by-step explanation:
If no vertical line can intersect the curve more than once, the graph does represent a function.
Answer:
Graph 1= It's a function
Graph 2= No
Graph 3= No
Graph 4= No
Graph 5= Yes
Graph 6= Yes
Step-by-step explanation:
The ratio of students who made
the honor roll to the total number
of students is 1:50. If there are
500 students in total, how many
made the honor roll?
Answer:
10 is the answer. 1:50 is 10:500 simplified
Step-by-step explanation:
500÷50=10.
Dani had $200 in her savings account. When she turned 18, the bank began charging her a $5.00/month fee. Write a function in terms of a for the balance of her savings account if she doesn't notice the monthly fee.
Complete the following. Use standard slope-intercept form.
The function in terms of balance of the savings account is B(a) = 200 - 5a.
What are equations?A formula known as an equation uses the equals sign to express how two expressions are equal. The variables for which the equation must be solved are also known as the unknowns, and the unknowns' values that fulfil the equality are known as the equation's solutions.
Let the number of months be represented as a.
The fee that would be deducted ever month can thus be represented as 5a.
The initial deposit in the bank is $200, and if we include the deduction the equation is as follows:
B(a) = 200 - 5a
Hence the function in terms of balance of the savings account is B(a) = 200 - 5a.
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Write the matrix equation that represents the system, and then solve if possible. State each of the rows, and then the
solution.
8x+7y=5
4x-9y=65
Answer:
x=5 y=-5
Step-by-step explanation:
how many 32-bit strings have exactly 23 ones and 9 zeros?
There are 2042975 32-bit strings with exactly 23 ones and 9 zeros.
What is the best way to start this question?
We have 32 bits in a 32-bit string. Out of these, there are 23 ones and 9 zeros. We need to count the number of 32-bit strings that have exactly 23 ones and 9 zeros.
We need to find out how many ways we can place 23 ones and 9 zeros in a 32-bit string. There are a total of 32 positions, and we need to select 23 of them for ones, the rest will be zeros.
Therefore, the answer is the number of ways we can choose 23 positions out of 32 positions.
We can calculate this using the binomial coefficient.
Combination = 32C23 = 32! / (23! * 9!) = (32 * 31 * ... * 10 * 9!) / (23 * 22 * ... * 1 * 9!) = 16,777,216 / 3,628,800 = 4.62015
Therefore, there are 4.62015 * 10^6 32-bit strings with exactly 23 ones and 9 zeros
. As we cannot have a fractional number of strings, we round this up to get the final answer.
Therefore, there are 2042975 32-bit strings with exactly 23 ones and 9 zeros.
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