In a sale, the cost of a car is
reduced by 20%. In the sale it
costs £4,500. How much was it
before the sale?
5400
4500 multiplied by 1.2
Answer:
The original price would be $5,625
Step-by-step explanation:
The formula to finding out the original price is -
OP = SP/1 - P
- OP = Original Price
- SP = Sale Price
- P = Percent Discount
Now just put in the respected values and you'll get -
OP = 4500/1 - 0.20
Now solve :D
OP = 4500/1 - 0.20
= 4500/0.8
= 5625
So the original price is $5,625
Hope this helped! :D
PLSSS HELP!!!
Which equation is represented by the graph below?
Answer:
hope it will help you to
hope it will help you
It would be y = ex - 4
As a suggestion, I would recommend using the desmos calculator online. It's an entirely free graphing calculator and helps with questions like this. I hope that helps!
Write the correct postulate, theorem, property, or definition that justifies the statement below the diagram.
The correct theorem or definition that justifies the given statement for the diagram is; Definition of a Right angle Triangle
What is the angle postulate?We are given that;
∠MRS ≅ ∠MRO
Now, what that means is that ∠MRS is congruent to ∠MRO. Thus, to understand this concept of equality or congruence, we can prove it since from the given image, we see that;
m∠MRS = m∠MRO = 90°
Since they are both right angles then we can say that the correct theorem is the definition of a right angle triangle.
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send help lol confused
Answer:
C. 0≤x≤7
Step-by-step explanation:
It is not choice D. because it has y instead of x. It is supposed to be x because it is asking for domain.
Hope this helps!
What is DF=
Help me please thank you :)
The value of DF = 20.
What is similarity?Two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.
Given:
Using theorem
If two triangles are similar, then the ratio of the area of both triangles is proportional to the square of the ratio of their corresponding sides.
ΔSDF/Δ RTY = (SD/RT)= (DF/TY)= (FS/ YR)
ar ΔSDF² / ar ΔRTY² = 16/81
SD/ RT = 4/9
SD = 4x, RT= 9x
SD= 8
4x = 8
x = 2
So,
RT= 9*2 = 18
SF = RT -2
SF = 16
(SD/RT)= (FS/ YR)
8 / 18 = 16/ YR
YR= 36
TY= 9 +RY = 45
(DF/TY)= (FS/ YR)
DF / 45= 16/ 36
DF=20
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A new washing machine is purchased for $300. it's value depreciates 20% every year for the first 6 years of its life
The value of the washing machine after 6 years with 20% depreciation every year is $78.64.
What is depreciation?Depreciation is the practice of subtracting a business asset's cost over a number of years as opposed to just one.
Depreciation is used to adjust the cost of a productive asset with a longer-than-year-long useful life to the income generated by operating the asset. The expense of the asset is typically dispersed across the years that it is utilized.
Calculation for the asset value after depreciation of 20% every year.
The purchasing cost of washing machine is $300.
The rate after 6 years is-
Rate = purchased price×[tex](1-r)^{t}[/tex]
= 300×[tex](1-0.2)^{6}[/tex]
= 300×[tex]0.8^{6}[/tex]
= 78.64
The cost of washing machine after 6 years will be $78.64.
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If Jamari pays $25 at the beginning of the month, he will pay only $5 per hour for using Vic Sporting facility. The information is recorded in the table on the image inserted. Write an equation for y, the cost of spending x hours at the sporting facility each month.
Answer:
Y = 5x + 25
Step-by-step explanation:
$25 is the constant, meaning regardless of the time he spends, he will not pay more or less.
However, he pays 5 dollars for every hours (x) = 5x
The sum of 5 consecutive even integers is 4 less than the sum of the first 8 consecutive odd counting numbers. What is the smallest of the even integers
The smallest of the even integers is 8.
It is a well-known fact that the sum of the first n odd numbers is n^2. This makes the sum of the first 8 odd numbers equal to 64.
Let n be equal to the smallest of the 5 even integers. Then (n+2) is the next highest, (n+4) even higher, and so on.
This sets up the equation n+(n+2)+(n+4)+(n+6)+(n+8)+4=64
Now we solve:
5n+24 = 64
5n = 40
n = 8
The smallest of the even integers is 8.
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3/a times x -4 equals 20
Answer:
a = -5/3
Step-by-step explanation:
3/a × -4 = 20
3a × -4/-4 = 20/-4
3a = -5
a = -5/3
Check:
3/(-5/3) × - 4 = 20
-5 × - 4 = 20
The equations in this sytem were added to solve for x. What is the value of x?
-6x+4y=-8
6x-12y=14
.-16y=6
.-8y=6
.-8y=-22
.-16y=-22
Answer:
x=5/6 but since you gave options in terms of y: -8y=6
Step-by-step explanation:
When you add equations together to solve for a systems of equations, it because you want to cancel out one of the values, and in this case it's the 6x, since the 6x + (-6x) = 0
Now all you need to do is add the -12 and 4y and you get -8y which is going to be the left side of the equation
Now add the -8 and 14 and you get 6 which is going to be the right side of the equation. This gives you the equation:
-8y = 6
Divide both sides by -8
y = -0.75
Now plug this into either original equation but in this case I'll just use the -6x+4y=-8
Plug in -0.75 as y
-6x+4(-0.75) = -8
-6x-3=-8
-6x=-5
Divide both sides by -6
x=5/6
The quadratic $x^2 1300x 1300$ can be written in the form $(x b)^2 c$, where $b$ and $c$ are constants. What is $\frac{c}{b}$
The value of c/b when the quadratic equation x² + 1300x + 1300 is written in the form (x + b)² + c, b and c being constants is -648.
The given quadratic expression needs to be expressed using the perfect square method to be of the form (x + b)² + c.
We express the quadratic expression x² + 1300x + 1300 using the perfect square method following these steps:
x² + 1300x + 1300
= x² + 2x(1300/2) + (1300/2)² + 1300 - (1300/2)²
= x² + 2x(650) + (650)² + 1300 - (650)²
= (x + 650)² + 1300 - 422500
= (x + 650)² - 421200.
Comparing this to (x + b)² + c, we get:
b = 650, and c = -421200.
Therefore, the value of c/b = (-421200)/650 = -648.
Therefore, the value of c/b when the quadratic equation x² + 1300x + 1300 is written in the form (x + b)² + c, b and c being constants is -648.
The question seems improper. The proper question is:
" The quadratic x^2+1300x+1300 can be written in the form (x + b)^2+c, where b and c are constants. What is c/b?"
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The length of a picture is 10.5cm and the diagonal is 18.2cm . What width must have to meet a right angle ?
The width that must meet a right angle is 14.87 cm
How to determine the width?The given parameters are:
Length = 10.5 cmDiagonal = 18.2 cmThe width is calculated using the following Pythagoras theorem.
Width^2 = Diagonal^2 - Length^2
So, we have:
Width^2 = 18.2^2 - 10.5^2
Evaluate
Width^2 = 220.99
Take the square root of both sides
Width = 14.87
Hence, the width that must meet a right angle is 14.87 cm
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At which of the given values is the graph discontinuous?
a. 7
b. -2
C. -4
d. 0
Suppose that the linear probability model yields a predicted value of Y that is equal to 1.3. Explain why this is nonsensical. A. The predicted value of Y must be between 0 and 1. B. The predicted value of Y is a positive number. C. The predicted value of Y is too low. D. The predicted value of Y is not an integer.
The predicted value of Y must be between 0 and 1.
A linear probability model (LPM) is a regression model where the outcome variable is a binary variable, and one or more explanatory variables are used to predict the outcome. Explanatory variables can themselves be binary, or continuous.
Suppose, that the linear probability model yields a predicted value of Y that is equal to 1.3.
This is nonsensical because
The predicted value of Y must be between 0 and 1.
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You have several numbers in a data set: 5, 7, 9, 11, 13, 15, 17. What is the z Score for the number 7
The z score for the number 7 is -0.92.
The standard deviation is 4.32
X is the score that is 7 given.
We have to calculate the z score for doing so we need the mean also.
Mean is obtained by dividing the sum of numbers / total frequency.
Mean = Summation of numbers / total numbers
= 5, 7, 9, 11, 13, 15, 17 / 7
= 77/7
= 11
Formula of z-score, Z= x - mean /S.D.
x is the number that is 7.
S D is the standard deviation.
Z= 7-11 / 4.32
= -4/4.32
Z score = -0.92
In data, the standard deviation is a degree of the quantity of version or dispersion of a fixed of values. A low fashionable deviation suggests that the values have a tendency to be near the suggest of the set, while a high widespread deviation shows that the values are spread out over a much broader range.
Standard deviation is vital because it is able to assist users check chance. Bear in mind a funding option with a median annual return of 10% in line with the year. However, this average changed into derived from the past three-year returns of 50%, -15%, and -5%. with the aid of calculating the same old deviation and understanding your low likelihood of really averaging 10% in any single given 12 months, you're better armed to make knowledgeable decisions and apprehend underlying risk.
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Find the surface area of the composite figure.
The surface area of the composite figure shown in the image is 952 ft²
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Surface area of composite is the sum of the individual areas of the surface.
Hence:
Surface area of composite = 2(14 * 9) + 2(0.5 * 10 * 8) + 2(10 * 10) + 2(10 * 14) + (10 * 14) = 952 ft²
The surface area of the composite figure shown in the image is 952 ft²
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pls help me in this i really need help :( :)
Hello and Good Morning/Afternoon:
Let's take this problem step-by-step:
First off, let's write the line in point-slope form:
[tex]\rm \hookrightarrow (y-y_0)=m(x-x_0)[/tex]
(x₀, y₀) any random point on the line'm' is the value of the slopeLet's calculate the slope:
[tex]\rm \hookrightarrow Slope = \frac{y_2-y_1}{x_2-x_1}[/tex]
(x₁, y₁): any random point on the line ⇒ (-2, -6)(x₂,y₂): any random point on the line that is not (x₁, y₁) ⇒ (2, -3)[tex]\rm \hookrightarrow slope = \frac{-3--6}{2--2} =\frac{3}{4}[/tex]
Now that we found the slope, let's put it into the point-slope form
⇒ we need (x₀, y₀) ⇒ let's use (2,-3)
[tex](y-(-3))=\frac{3}{4} (x-2)\\y+3=\frac{3}{4} (x-2)[/tex]
The equation, however, could also be put into 'slope-intercept form'
⇒ gotten by isolating the 'y' variable to the left
[tex]y = \frac{3}{4}x-\frac{9}{2}[/tex]
Answer:[tex]y = \frac{3}{4}x-\frac{9}{2}[/tex] or [tex]y+3=\frac{3}{4} (x-2)[/tex]
*Either equations work, put the one that you are the most familiar with
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Here are six number cards.
9 7 5 -4 -2 0
Arrange the cards into three pairs with the same total.
Note: Please write each pair on separate lines and
use the word 'and' between the numbers (eg. 7 and -3).
9 and -4
7 and -2
5 and 0
Each and every pair has a total of 5.
Answer:
9 and-4
7 and -2
5 and 0
Step-by-step explanation:
When ya subtract 4 from 9 you get 5
the same applies to the rest.
PQ¯¯¯¯¯ and PR¯¯¯¯¯ are tangent to ⊙ S. Identify PQ.
pls help 30 points
Answer:
9
Step-by-step explanation:
Because line PQ and line PR are both tangent to circle S, it would result in them being equal. So first to find PQ, you would have to find the value of variable x. To do this you would set both equations equal to each other and solve
6x - 9 = 2x + 3
-2x -2x
4x - 9 = 3
+9 +9
4x = 12
x = 3
Now you have to substitute 3 back into the equation for PQ:
6(3) - 9
18 - 9
= 9
Resulting in PQ = 9, to check your answer, take the value of x (3) and substitute it into PR and you should also get 9
2(3) + 3
6 + 3
= 9
what’s the slope and y-int of, [-1,7] and [0,4]
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textbf{What is the formula for finding slope?}[/tex]
[tex]\mathbf{\dfrac{y_2 - y_1}{x_2 - x_1} = slope}[/tex]
[tex]\huge\textbf{Often people understand it better by:}[/tex]
[tex]\mathbf{\dfrac{rise}{run} = slope}[/tex]
[tex]\huge\textbf{Answering the given question:}[/tex]
[tex]\mathbf{y_2 \rightarrow 4}\\\\\mathbf{y_1 \rightarrow 7}\\\\\mathbf{x_2\rightarrow 0}\\\\\mathbf{x_1 \rightarrow -1}[/tex]
[tex]\huge\textbf{Now, that we have that information out}\\\huge\textbf{the way, we can answer the question.}[/tex]
[tex]\huge\textbf{Solving for the answer:}[/tex]
[tex]\mathbf{\dfrac{4 - 7}{0 - (-1)} = slope}[/tex]
[tex]\mathbf{\rightarrow \dfrac{4 - 7}{0 + 1} = slope}[/tex]
[tex]\mathbf{\rightarrow \dfrac{-3}{1} = slope}[/tex]
[tex]\mathbf{-3\div 1 = slope}[/tex]
[tex]\mathbf{\rightarrow -3 = slope}[/tex]
[tex]\huge\textbf{Therefore, your answer should be:}[/tex]
[tex]\huge\boxed{\textsf{S}\frak{lope \rightarrow -3}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Suppose that two fair dice have been tossed and the total of their top faces is found to be divisible by 5. What is the probability that both of them have landed 5
The probability that both of them have landed 5 is 1/7.
Two fair dice have been tossed,
The total of their top faces is found to be divisible by 5,
Probability is a branch of mathematics that deals with calculating the likelihood of a given event's occurrence, which is expressed as a number between 1 and 0.
The probability that both of them have landed 5 is
E={(x,y)|x+y=5 or x+y=10, 1≤x,y≤6},
F={(5,5)}.
P(F|E)= 1/7.
Hence, The probability that both of them have landed 5 is 1/7.
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Adrian brought snacks for his team's practice. He bought a bag of apples for $1.68 and a 12-pack of juice bottles. The total cost before tax was $10.92. How much was each bottle of juice
Answer:
x = 77/100
Step-by-step explanation:
When you solve this equation: 1.68+ 12x = 10.92
The answer is x = 77/100
The cost of each bottle of juice will be $0.77.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that Adrian brought snacks for his team's practice. He bought a bag of apples for $1.68 and a 12-pack of juice bottles. The total cost before tax was $10.92.
From the given data the expression will be formed as below:-
1.68+ 12x = 10.92
12x = 10.92 - 1.68
12x = 9.24
x =9.24 / 12
x = $0.77
Therefore, the cost of each bottle of juice will be $0.77.
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The diameter of a sphere is 16.4 mm Calculate the sphere's volume
Use the value 3.14 for pi , and round your answer to the nearest tenth. (Do not round any intermediate computations.)
The volume of the sphere is 2308.4 mm³
Calculating the volume of a SphereFrom the question, we are to determine the volume of the sphere
The volume of a sphere is given by the formula
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
Where V is the volume
and r is the radius
From the given information,
Diameter, d, of the sphere = 16.4 mm
r = 16.4/2
r = 8.2 mm
∴ [tex]V=\frac{4}{3}\times 3.14 \times 8.2^{3}[/tex]
V = 2308.394
V ≅ 2308.4 mm³
Hence, the volume of the sphere is 2308.4 mm³
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When two variables are being examined, and one variable moves one way and the other variable moves in the opposite direction, this is called a(n):
When two variables are being examined, and one variable moves one way and the other variable moves in the opposite direction, this is called an inverse relation.
Correlation is a statistical degree (expressed as various) that describes the size and path of a courting among or extra variables. A correlation between variables, however, does now not robotically suggest that the trade in a single variable is the purpose of the alternate inside the values of the opposite variable.
A positive correlation is clear while variables move within an equal course. An inverse correlation is clear whilst variables circulate inside the opposite route.
A negative correlation is a relationship among variables that pass in contrary instructions. In other phrases, while variable A increases, variable B decreases. A poor correlation is likewise known as an inverse correlation.
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When two variables are being examined, and one variable moves one way and the other variable moves in the opposite direction, this is called a(n): Inverse Relationship.
Consumption is subject to diminishing marginal utility. -A lower price increases the purchasing power of a buyer's income, enabling a buyer to purchase more of a product.
The law of supply and demand is a keystone of modern economics. According to this theory, the price of goods is inversely related to the quantity offered. This makes sense for many goods, since the more costly it becomes, fewer people will be able to afford them and demand will subsequently drop.
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X=
Help me please thanks
The value of x will be equal to 6 units.
What is trigonometry?Trigonometry is the branch of mathematics that set up a relationship between the sides and angle of the right-angle triangles.
Given that:-
Given that the radius of the circle is 9 which is SO= 9 and SG = 9.
Now the value of x will be calculated by using the Pythagorean theorem.
H² = P ² + B ²
OG² = 12² + 9 ²
OG = √225
OG = 15
Since, OG = OH + HG
HG = OG - OH
x = 15 - 9
x = 6 units
Therefore the value of x will be equal to 6 units.
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10
TIME REMAINING
59:02
Which is the graph of the linear inequality 2x – 3y < 12?
On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.
On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.
The graph of the inequality will be B. on a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
How to get the graph?It can be deduced that the coordinates satisfy the equation of the line.
3y = 2x - 12
Divide through by 3.
y = 2/3x - 4.
The slope is 2/3.
In conclusion, the correct option is B.
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Answer:
b
Step-by-step explanation:
If I have 8$and something 3$ how many change wil I get?
ASAP PLS HELP
Which function is the inverse of f(x)=12x+5?
f−1(x)=2x+10
f−1(x)=2x−5
f−1(x)=2x−10
f−1(x)=2x+5
Answer:
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!!!!!ASAP, I MEAN THAT AS NICE AS POSSIBLE, THANKS!!!!!!!!!!!!
Solve the triangle.
Round your answers to the nearest tenth.
If there is more than one solution, use the button labeled "or".
The value of the side b and c will be 58.57 units and 36.86 units, and angle ∠B will be 107°.
What is law of sines?Let the triangle ABC, with side measures |BC| = a. |AC| = b. |AB| = c.
Then by the sine law, we have
[tex]\rm \dfrac{\sin\angle A}{a} = \dfrac{\sin\angle B}{b} = \dfrac{\sin\angle C}{c}[/tex]
The sum of angles of triangle is 180°.
∠A + ∠B + ∠C = 180°
36° + ∠B + 37° = 180°
∠B = 107°
Then the side b will be
sin 36° / 36 = sin 107° / b
b = 58.57 units
Then the side c will be
sin 36° / 36 = sin 37° / c
c = 36.86 units
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