The formula for the final cost, in terms of the original price y, is:
c(y) = y*(0.88)*(1.03)
How to find an expression for the final cost of the DVD?
Let's define y as the original price of the DVD.
We first apply a discount of the 12% of the price, so the new cost will be:
c(y) = y*(1 - 12%/100%)
c(y) = y*(1 - 0.12)
Then we apply a tax of the 3%, this in increase, then we can write this as:
c(y) = y*(1 - 0.12)*(1 + 3%/100%)
c(y) = y*(1 - 0.12)*(1 + 0.03)
c(y) = y*(0.88)*(1.03)
That is the formula that we could use to determine the final cost.
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What value of x will make a0nm similar to ASRQ by the SAS similarity theorem?.
The value of x is 25 will make ΔONM similar to ΔSRQ by the SAS similarity theorem.
Given:
∠ONM is similar to ∠SRQ
From the figure
NM = 10
SR = 20
NO = 8
QR = x
SAS Similarity Theorem:
if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.
Both the triangles are similar by SAS if
NO/NM = SR/QR
Now substitute the values
8/10 = 20/x
cross multiplication
8x = 200
dividing both sides by 8
x = 25
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if the reference angle was . what are the angle in the 4 quadrants. make sure to explain how you get the angles.
Answer:
Step-by-step explanation:31542
Elliot buy 5 ruler and 3 rubber for £5. 5. Mia buy 3 ruler and 2 rubber for £3. 5. Work out the cot of one ruler and one rubber
The cost ruler is £ 1.5 and the cost of rubber is £ 1.0.
Cost of 01 ruler be x pound.
Cost of 01 rubber be y pound.
according to question,
[tex]5x + 3y = 5.5[/tex] ------------------------------------ (1)
[tex]3x + 2y = 3.5[/tex] ------------------------------------(2)
multiplying equation (2) by 2 and equation (1)
[tex]10x + 6y = 11[/tex] -------------------------------------(3)
[tex]9x + 6y = 10.5[/tex] -------------------------------------(4)
subtracting equation (4) by (3), we get
[tex]x = 0.5[/tex]
putting the value of [tex]x = 0.5[/tex] in equation (2),
3×0.5 + 2y = 3.5
⇒1.5 +2y = 3.5
⇒2y= 2.0
⇒y = 1
∴ the cost of ruler is £ 0.5 and the cost of £1.0
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Pls Help I will give brainliest to whoever is first and correct. And answer all questions!
Answer:
The original equation
Distributive property
subtract 5x from both sides
add 12 to both sides
divide both sides by -14
Given a∥b , and c is not parallel to a or b, which statements must be true? Select each correct answer. Responses m∠1=m∠5 the measure of angle 1 equals the measure of angle 5 m∠7=m∠11 the measure of angle 7 equals the measure of angle 11 m∠5=m∠12 the measure of angle 5 equals the measure of angle 12 m∠4=m∠5 the measure of angle 4 equals the measure of angle 5 three lines a, b, and c that look somewhat horizontal. they are cut by a transversal forming 12 angles. line a intersects the transversal for form angles 1, 2, 4, 3 clockwise starting from the top left. line b intersects with the transversal to form angles 5, 6, 8, 7 clockwise starting from top left. line c intersects with the transversal to form angles 9, 10, 12, and 11 clockwise starting from top left. Skip to navigation
By using the properties of parallel lines, the result obtained is-
The correct options are first, second and fourth
What are parallel lines?
Two lines are said to be parallel if on extending them indefinitely, they will never intersect
Here,
From the figure,
For the first option,
m∠1=m∠5 [Corrosponding angles are equal]
First option is correct
For the second option,
m∠7=m∠11 [Corrosponding angles are equal]
Second option is correct
For the third option,
m∠5 ≠ m∠12 [ c is not parallel to b]
Third option is wrong
For the fourth option,
m∠4 = m∠5 [Alternate interior angle are equal]
Fourth option is correct
So the correct option are first, second and fourth
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Complete Question
The diagram has been attached
Answer: The answer is below
Step-by-step explanation:
Matrices (Please help, I have no idea what this is) 20 POINTS
a₁₁=1 of the given matrix.
What is Matrix?Matrix, a set of numbers arranged in rows and columns so as to form a rectangular array.
Given Matrix is [tex]\left[\begin{array}{cccc}1&3&8&5\\5&4&6&2\\6&7&1&8\\2&9&3&7\end{array}\right][/tex]
The matrix will be in the form[tex]\left[\begin{array}{cccc}a_{11} &a_{12} &a_{13} &a_{14} \\a_{21} &a_{22} &a_{23} &a_{24} \\a_{31} &a_{32} &a_{33} &a_{34} \\a_{41} &a_{42} &a_{43} &a_{44} \end{array}\right][/tex]
The given matrix is a 4 cross 4 matrix, which has 4 rows and 4 columns.
a₁₁ means it is the first element of first row and first element of first column.
By comparing the given matrix with standard form a₁₁=1
Hence, a₁₁=1 of the given matrix.
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for a summer bbq you have 30 friends coming over. how many picnic tables do you need if you can seat 4 people at each picnic table?
Answer:
You need 8 picnic tables.
Step-by-step explanation:
You need 8 picnic tables because there are 30 friends and 4 sits at each table, and 4 x 8 is 32. There is 2 more extra seats. But it does fit all 30 friends.
what is the rate of change of the function y=4x-2
Answer: 4
Step-by-step explanation: x is multiplied by 4
What is 348,962 rounded to the nearest ten thousand?
Answer:
i think its 350000
Step-by-step explanation:
hope it helps! :)
From 1987 to 2009, the number
B
of federally insured banks could be approximated by
B
(
t
)
=
−
327.4
t
+
13715
where t is the year and t=0 corresponds to 1987.
Answer:
12100
Step-by-step explanation:
If the number B of federally insured banks could be approximated by B ( t ) = − 329.4 t + 13747 from 1985 to 2007 where t = 0 correspond to year 1985
In order to determine the amount of federally insured banks that were there in 1990, we will first calculate the year range from initial time 1985 till 1990
The amount of time during this period is 5years. Substituting t = 5 into the modeled equation will give;
B ( t ) = − 329.4 t + 13747
B(5) = -329.4(5) + 13747
B(5) = -1647+13747
B(5) = 12100
This shows that there will be 12100 federally insured banks are there in the year 1990.
help me pleaseeeeee?
Answer: 90
Step-by-step explanation:
VolBigCube = 1.5x1.25x0.75 = 1.40625 in^3
VolSmallCube = 0.25x0.25x0.25 = 0.015625 in^3
VolBigCube/VolSmallCube = 1.40625/0.015625 = 90
Suppose that 17 inches of wire costs 85 cents. At the same rate, how much (in cents) will 13 inches of wire cost?
Answer:
65 cents
[tex]85 \div 17[/tex]
85/17 =5
so for 1 inch of wire is 5 cents but we want to know for 13 inches
so times 5 by 13
5cents*13=65cents
What should the height of a can of fruit juice used as a prop be if it's actual height is 7 inches
The height of a can of fruit juice used as a prop, if it's actual height is 7 inches, should be of:
3.85 inches.
What is a proportional relationship?A proportional relationship is a linear function that has intercept of zero and hence it has the output variable y as the multiplication of the input variable x and the constant of proportionality k, as follows:
y = kx.
The input and the output variables in this problem are given as follows:
Input variable: Actual height.Output variable: Height on set.From the table given at the end of the answer, the constant is given as follows:
k = 44/80
k = 0.55.
Hence the equation is:
y = 0.55x.
Then the height on the set when the actual height is of 7 inches is given by:
y = 0.55(7) = 3.85 inches.
Missing InformationThe table is given by the image at the end of the answer.
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prove that
tan x / (1 +secx) + (1+secx)/tanx = 2 csc x
The trigonometric expression [tex]\left(\dfrac{tan( x)}{1+sec( x)} +\dfrac{1+sec( x)}{tan( x)}\right)[/tex] can be simplified to prove that it equals 2·csc(x), by plugging in [tex]\left(tan(x) = \dfrac{sin(x)}{cos(x)}\right)[/tex],
[tex]\left(sec(x) = \dfrac{1}{cos(x)}\right)[/tex] and [tex]\left(csc(x) = \dfrac{1}{sin(x)}\right)[/tex] to give the following
trigonometric identity;
[tex]\dfrac{tan( x)}{1+sec( x)} +\dfrac{1+sec( x)}{tan( x)} = 2\cdot csc(x)[/tex]What are trigonometric identities?Trigonometric identities are equations of trig functions which are valid for all values of the input variable at which the expressions on both sides of the equality are defined.
The trigonometric expression in the question is simplified as follows;
[tex]\dfrac{tan( x)}{1+sec( x)} +\dfrac{1+sec( x)}{tan( x)} = \dfrac{tan( x)}{1+\dfrac{1}{cos(x)} } +\dfrac{1+\dfrac{1}{cos(x)}}{tan( x)}[/tex]
[tex]\dfrac{tan( x)}{1+\dfrac{1}{cos(x)} } +\dfrac{1+\dfrac{1}{cos(x)}}{tan( x)} = \dfrac{cos(x)\times tan( x)}{cos(x)+1} } +\dfrac{cos(x)+1}{cos(x)\times tan( x)}}[/tex]
[tex]\dfrac{cos(x)\times tan( x)}{cos(x)+1} } +\dfrac{cos(x)+1}{cos(x)\times tan( x)}} = \dfrac{sin(x)}{cos(x)+1} } +\dfrac{cos(x)+1}{sin( x)}}[/tex]
[tex]\dfrac{sin(x)}{cos(x)+1} } +\dfrac{cos(x)+1}{sin( x)}} = \dfrac{sin^2(x)+(cos(x)+1)^2}{sin( x)\cdot (cos(x)+1)} }[/tex]
[tex]\dfrac{sin^2(x)+(cos(x)+1)^2}{sin( x)\cdot (cos(x)+1)} }=\dfrac{sin^2(x)+cos^2(x)+2\cdot cos(x)+1}{sin( x)\cdot (cos(x)+1)}[/tex]
[tex]\dfrac{2\cdot cos(x)+2}{sin( x)\cdot (cos(x)+1)} =\dfrac{2\cdot (cos(x)+1)}{sin( x)\cdot (cos(x)+1)} = \dfrac{2}{sin( x)}[/tex]
[tex]\dfrac{2}{sin( x)} = 2\cdot csc(x)[/tex]
[tex]\therefore \dfrac{tan( x)}{1+sec( x)} +\dfrac{1+sec( x)}{tan( x)} =2\cdot csc(x)[/tex]
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For this problem, write the numbers in scientific notation. 6,000 A. 6 × 103 B. 6 ×104 C. 6× 102
Answer:
Step-by-step explanation:
6,000 = 6 × 1000 = 6 × 10³
Jemmy throws the dice twice. What is the probability of getting 3 on the top for both dice?.
The probability of getting 3 on both of the dice is 1/36.
What is probability?
Mathematical explanations of the likelihood that an event will occur or that a statement is true are referred to as probabilities. An event's possibility is a number between 0 and 1, where, practically speaking, 0 denotes the event's impossibility and 1 denotes certainty.
Main Body:
The probability of getting 3 on a dice = 1/6
As Jemmy throws the dice twice
P( 3 on both dice) =(1/6)*1/6
P ( 3 on both dice) = 1/36.
Hence the probability of getting 3 on both dice = 1/36.
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This item has two parts: Part A and Part B. Use the information to complete Part A and Part B.
Two populations of bacteria increased at exponential rates. The table shows the bacteria population size for sample A, A(x), after x weeks.
x 0 1 2 3 4
A(x) 100 300 900 2,700 8,100
The graph shows the bacteria population size for sample B, B(x) = 500(2)x, after x weeks.
Part A
Which bacteria sample had a smaller initial population? What was that value?
Sample A; 100 bacteria
Sample A; 300 bacteria
Sample B; 2 bacteria
Sample B; 500 bacteria
Part B
Compare the population of each sample on the 5th week. Which sample was larger and by how much?
Sample A; 24,300
Sample A; 8,300
Sample B; 40,300
Sample B; 16,000
A. The bacteria sample that had a smaller initial population is;
Sample A; 100 bacteria.
B. The sample that was larger in the 5th week was;
Sample A; by 8,300.
How to solve Exponential functions?
An exponential function is defined by the general expression;
y = abˣ
where;
a is initial value.
b is rate of change.
For Sample A, the values of the above parameters are given as;
a = 100
b = 3
Thus, the exponential function is:
f(x) = 100(3)ˣ
In the 5th week, the population will be calculated as;
f(5) = 100 * 3⁵
f(5) = 24300.
For Sample B, the exponential function is expressed as:
g(x) = 500(2)ˣ
In the 5th week, the population will be;
g(5) = 500 * 2⁵
g(5) = 16000.
The difference of the larger population in Sample A and the smaller population in Sample B is;
24300 - 16000 = 8300.
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If you dealt 4 cards from a shuffled deck of 52 cards without replacement, what is the probability that all 4 cards are face cards?.
The probability of getting face card in all 4 attempts is 0.0018 approximately.
What are face cards?
Any of the twelve cards in a deck with an image of a face on it is referred to as a face card. King, Queen, and Jack are the face cards in this deck.
Main Body:
Jack, Queen, and King are face cards, each of the four suits has one of each, so 12 face cards.
12/52 is the chance that the first one will be a face card.
Then it’s 11/51, 10/50, and 9/49.
And the chance for all four is thus all four multiplied together.
(12 / 52) * (11 / 51) * (10 / 50) * (9 / 49) = 0.001828
Hence the probability of getting face card on all attempt is 0.0018
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helppppppppppppppppp plssssssss
The "zero of a function" refers to the input value that makes the function's output equal to 0.
Caroline leaves her house and walks north 6 blocks. She turns and heads east 8 blocks until she reaches mattie’s house. What is the shortest distance between caroline’s and mattie’s houses?.
The shortest distance between Caroline's and Mattie's houses is 10 block.
Let Caroline started from point A and goes towards north 6 blocks to O. and goes to B 8 blocks in east.
AO = 6
BO = 8
Formula for the Shortest distance can be solve by pythagoras theorem:
[tex]AB^{2} = AO^{2} +OB^{2}[/tex]
[tex]AB^{2} = 6^{2} +8^{2}[/tex]
[tex]AB^{2} = 36+64[/tex]
[tex]AB^{2} = 100[/tex]
[tex]AB = \sqrt{100}[/tex] can
[tex]AB = 10[/tex].
The shortest distance AB = 10 block.
#1234
10 blocks are the shortest distance between Caroline and Mattie's homes.
Given data,
Caroline steps outside and makes a 6 block trek to the north. To go to Mattie's house, she does a turn and travels 8 blocks to the east.
To get the shortest distance between Caroline and Mattie's houses we need to it as a triangle and apply the Pythagorean theorem.
Pythagorean theorem:
The well-known geometric axiom is that the hypotenuse (the side across from the right angle) of a right triangle is equal to the sum of the squares on its legs. Or, in popular algebraic form, a² + b² = c².
The shortest distance (c);
Let, a = 6
b = 8
⇒ a² + b² = c²
6² + 8² = c²
36 + 64 = c²
c = [tex]\sqrt{100}[/tex]
c = 10
Therefore, the shortest distance between Caroline’s and Mattie’s houses is 10 blocks.
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how many ways are there to seat 8 people around a circular table where two seatings are considered the same when everyone has the same two neighbors without regard to whether they are right or left neighbors?
There are 2520 ways to seat 8 people around a circular table where two seatings are considered the same when everyone has the same two neighbors without regard to whether they are right or left neighbors.
There are a total of seven different ways for eight individuals to sit around a circular table: (8-1)!=7!. We are using the concept of circular permutation.
By using circular permutation we have,
7!=5040
All of the seating is included in these 5040 ways. Given that everyone has the same two neighbors, regardless of whether they are left or right neighbors, two seating are said to be equal. To achieve the desired outcomes, we must divide the total number of methods by 2.
5040/2
=2520 ways
Therefore, there are 2520 ways to seat 8 people around circular table where two seating are considered the same.
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i need help on this thanks
The value of x that makes m ║n is 60 degree.
What is consecutive interior angles?
Pairs of angles that are between two lines and on the same side of the line that cuts through the lines are referred to as consecutive internal angles.
The "consecutive interior angle theorem" asserts that each pair of consecutive interior angles is supplementary, meaning that the sum of the consecutive interior angles equals 180°, if a transversal intersects two parallel lines.
Here to make m ║n the angles x and 2x are consecutive interior angles.
Since consecutive interior angles are supplementary.
So,
x + 2x = 180
3x = 180
x = 180/3
x = 60 degree.
Therefore, the value of x is 60 degree that makes m ║n.
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Select the correct answer.
Jackie is selling smoothies at a school fair. She starts the day with $15 in her cash box to provide change to her customers. If each smoothie costs $3.75, which graph represents the balance of the cash box, y, after Jackie sells x smoothies?
Answer:
the expression for the graph would be y = 3.75x + 15.
There aren't answer choices so this is the most I could do with the information provided.
Hope this at least helps you find the correct graph.
Have a nice day! :)
Step-by-step explanation:
Please help :( PQRS is a quadrilateral and M is the midpoint of PS.
PQ=a QR=b AQ=a-2b
Show that PS =2b
Answer as fast as possible please
Answer: B)
Could you please merk me as "Brainliest"
What is an equation of the line that passes through the points (8, -3) and (4, 2)?
Answer:y
=5/4x+-3
Step-by-step explanation:
first you find the slope which is 5/4 then you do y=mx+b but replace the y and the x with points on the line giving you 2=5/4•4+b then you solve for b and get -3 giving you your answer.
Answer: -5/4x+7
Step-by-step explanation:
1)First find the slope passing through (8,-3) (4,2) using this formula
y2-y1/x2-x1 (this: 2--3/4-2) to get -1.25 or -5/4. this is your slope.
2) Then to get the y-intercept choose one of your points (doesn't matter which I chose (8,3) but you can choose any of the two) and create this formula y=mx+b.
3) Input your x and y from the point you chose and your slope (m) to create this -3=(8)+b.
4) Now solve for b. This should get you Postitve 7 (REMEMBER it is VERY IMPORTANT if you result is negative or positive. One mess up could make the whole thing wrong.)
5) Finally take your slope and y-intercept and put it together to get:
y=-5/4x+7
Follow those steps every time you get a problem like this and it should help :)
Carter feeds each of his dogs 1/5 of a can of food each day. He uses a total of 2/5 of a can of food each day. How many dogs does Carter have?
Answer:
Artur has 2 dogs
Step-by-step explanation:
we know he feeds the one fifth per dog so two fifth will be 2 dogs
Answer Two dogs,
Step-by-step explanation:
1/5 + 1/5 = 2/5 I mean cmon now that's easy
5 times a number decreased by 2 is 4. What is the number? Show work if you can.
A bakery sold 76 mocha cupcakes in a day, which was 95% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?
Answer:
126 cupcakes
Step-by-step explanation:
75 is equal to 94.5%
and if it was 127 cupcakes it would be 95.25%
but it would most likely have to be under 95%
so it would be 126 cupcakes
Katrina needs 3/5 kilogram of flour for a recipe her mother has 3/7 kilogram of flour in her pantry is this enough flour for the recipe if not how much more will she needs
The flour that Karina's mother has won't be enough for the recipe and she requires extra 3/20 together with the quality owed by the mother.
What is flour ?Flour is defined as a food product that is the main ingredient for baking of different recipes such as cakes, breads, plate pies just to mention a few.
The amount of flour needed by Karina for the recipe= 3/5 = 0.6.
The amount of flour owed by the mother = 3/7 = 0.45
The difference between the available flour = 0.6 - 0.45 = 0.15
This shows that extra flour of 0.15 or 3/20 is needed in addition to the quantity of flour owed by the mother to be able to make the recipe.
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(8a+5b-4) and (3b-5)
Answer:
a =-13/24 b = 5/3
Step-by-step explanation:
From given
8a + 5b = 4 (1)
3b = 5 (2)
Using (2)
b = 5/3
Putting the value of b into (1) gives
8a + 5(5/3) =4
8a + 25/3 = 4
8a = 4 - 25/3
8a = -13/3
a = -13/(3*8)
a = -13/24
