Assuming that "in an easterly direction" means that the displacement from O to P is in the positive direction, the position of point P can be expressed as +50 km.
What are the expressions of positive and negative numbers?Positive numbers are typically expressed with no sign or with a plus sign (+) in front of them. For example, +5 or 7. Negative numbers are expressed with a minus sign (-) in front of them. For example, -3 or -10.
These expressions are used to differentiate between values that are greater than zero (positive) and those that are less than zero (negative).
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A repair charges a travel free to vist a home and an hourly fee for the time spent fixing a leak. A repair that takes 2 h costs a $100. A repair that takes 6 h costs $260
Write an equation to represent the total cost of a repair, y, as a function of the number of hours spent fixing a leak, x
Answer:
Let's call the travel fee "t" and the hourly fee "h". Then the total cost of a repair, y, can be represented as:
y = t + hx
We can use the two given pieces of information to write two equations and solve for t and h:
2h + t = 100
6h + t = 260
Subtracting the first equation from the second, we get:
4h = 160
Dividing both sides by 4, we get:
h = 40
Substituting this value of h back into the first equation, we get:
2h + t = 100
2(40) + t = 100
80 + t = 100
Subtracting 80 from both sides, we get:
t = 20
So the total cost of a repair, y, as a function of the number of hours spent fixing a leak, x, can be represented as:
y = 20 + 40x
Step-by-step explanation:
Answer:y=40x+20
Step-by-step explanation:
HELPPPPPP MEEEEEEEEEEE
Answer:
C. 4
Step-by-step explanation:
The initial value would be four because that's what the value is at the start of the graph.
Help I’m stuck on this question
find the distaance between the points (-5,7) and (-5,2)
Answer: The distance between these two points is 5.
Step-by-step explanation:
Yay! Love doing distance formula questions!
Okay, so first off, the distance formula goes as follows:
d = [tex]\sqrt(x^{2} - x^1)^2 + (y^{2}-y^1)^2[/tex]
Basically you just plug in your coordinates to the formula.
Step 1:
[tex]\sqrt(-5 + 5)^{2} + (2-7)^{2}[/tex]
Step 2: Distribute the exponent to both parenthesis to get [tex]\sqrt{25}[/tex].
Step 3: Factor the number, which would result in [tex]\sqrt{5^2}[/tex].
As a result of this, your answer would be 5.
suppose the radius of a circle is 2 2start color purple, 2, end color purple units. what is its circumference?
The circumference of the circle is 2π x 2, or 12.57 units.
To find the circumference of a circle, we use the formula C = 2πr, where C is the circumference, π is a constant value of 3.14, and r is the radius of the circle. In this case, the radius of the circle is 2 units. So, we plug the values into the formula and get 2π x 2 = 12.57 units. This means that the circumference of the circle is 12.57 units. To put it another way, the circumference is equal to the diameter of the circle (2 units) multiplied by the value of pi (3.14). Therefore, the circumference of a circle with a radius of 2 units is 12.57 units.
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please help i really need help please
The cost of each apple is $0.56 while the cost of each banana is $0.8
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables using mathematical operations. An equation can be linear, quadratic, cubic and so on, depending on the degree of the variable.
Let a represent the cost of each apples and b represent the cost of each bananas. Four apples and three bananas cost £4.48:
4a + 3b = 4.48 (1)
Also, three apples and four bananas cost £4.76, hence:
3a + 4b = 4.76 (2)
Solving both equations simultaneously gives:
a = 0.56, b = 0.8
The cost of apple is $0.56 while the cost of banana is $0.8
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8^x-4=8^10 x=?
The solution to the equation is x =??
Answer:
x = 14
Step-by-step explanation:
[tex]8^{x-4}[/tex] = 8^10
[tex]8^{14 - 4}[/tex] = 8^10
8^10 = 8^10
Please help with this problem
The zeroes of the given function are + 1 and - 1 respectively.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.
Given is the function as -
y = x² - 1
For the zeros of the function substitute {y} = 0. We get -
x² - 1 = 0
x² = 1
x = ± 1
Therefore, the zeroes of the given function are + 1 and - 1 respectively.
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5(4x+3)-2x
What is equivalent to this expression
Answer:
So the expression is equivalent to 18x + 15.
Step-by-step explanation:
The expression 5(4x+3)-2x simplifies to:
= 20x + 15 - 2x (distributing the 5)
= 18x + 15 (combining like terms)
So the expression is equivalent to 18x + 15.
If P = 6p2 - 7p + 4, Q = -4p2 - 5p - 7 and R = 7p2 + 9p + 8. Find the value of (P2 - Q2 + R2).
PLSS HELP ASAP!! What is the value of z in this triangle? Enter your answer in the box. z = A triangle with angles measuring 62 degrees and 95 degrees. The third angle has an unknown measure, z degrees.
Answer:
23
Step-by-step explanation:
so the sum of all side's of a triangle is 180
so if one angle is 62 n the other angle is 95 then to find the third angle you need to
[tex]62 + 95 + x = 180[/tex]
[tex]157 + x = 180[/tex]
[tex]x = 180 - 157[/tex]
[tex]x = 23[/tex]
hope it helps mate
have a nice day :?
PLEASE HELP FOR BRAINLIEST- The sum of the first 15 terms of an arithmetic series is 165, and the first term is -3. Find the common difference, d.
Answer:
The common difference is 2.
Chandrakala has a square garden of lenght 18 m find the perimeter find the lenght of wire required to fence it with three rounds if the rate of cost of fencing is Rs 25 per meter, find the total cost of fencing
the total cost of fencing the garden will be Rs5400.
What is square?
Having four equal sides, a square is a quadrilateral. There are numerous square-shaped objects in our immediate environment. Each square form may be recognised by its equal sides and 90° inner angles. A square is a closed form with four equal sides and interior angles that are both 90 degrees. Numerous different qualities can be found in a square.
area of the garden = 4a ( a = side )
= 4(18)
= 72m
length of wire required to fence three rounds = 3 × perimeter
= 3 × 72
= 216 m
rate = 25 × 216
= 5400
Hence the total cost of fencing the garden will be Rs5400.
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Hey, i need help with this simple geometry question. thanks!
The length of sides BC and XC in the triangle are 8.66 and 10 units respectively
What is an equation?An equation is an expression that contains numbers and variables linked together by mathematical operations of addition, subtraction, multiplication, division and exponents. An equation can either be linear, quadratic, cubic, depending of the degree of the variable.
Trigonometric ratio is used to show the relationship between the sides and angles of a right triangle.
From the triangle shown, using trigonometric ratio:
sin(30) = 5/XC
XC = 10
Also:
tan(30) = 5/BC
BC = 8.66
The length of BC and XC are 8.66 and 10 units respectively
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if we call checkweather, what is the maximum number of functions that can be called (including checkweather)?
At least three functions can be called, including checkweather. The other two functions can be any other functions that the program contains.
The maximum number of functions that can be called when calling the checkweather function depends on the program. If the program contains other functions, then up to three functions can be called, including the checkweather function. When calling the checkweather function, the first function that will be called is the checkweather function itself. After the checkweather function is called, the program will then proceed to call any other functions that have been determined by the program. This means that the maximum number of functions that can be called is at least two, with the checkweather function being one of them.In addition, if the program contains additional functions, then the maximum number of functions that can be called increases to three. For example, if the program contains functions to display the weather forecast, to check the temperature and to generate an alert, then these functions can also be called in addition to the checkweather function. In this case, the maximum number of functions that can be called is three, with the checkweather function still being one of them.
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URGENT ALGEBRA
Which equation shows inverse variation?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
�
−
�
=
8
x−y=8x, minus, y, equals, 8
(Choice B)
B
�
=
1
8
⋅
1
�
x=
8
1
⋅
y
1
x, equals, start fraction, 1, divided by, 8, end fraction, dot, start fraction, 1, divided by, y, end fraction
(Choice C)
C
�
=
1
8
⋅
�
x=
8
1
⋅yx, equals, start fraction, 1, divided by, 8, end fraction, dot, y
(Choice D)
D
�
=
8
⋅
�
x=8⋅yx, equals, 8, dot, y
(Choice E)
E
1
8
⋅
1
�
=
1
�
8
1
⋅
x
1
=
y
1
Answer:
The equation that shows inverse variation is (Choice C) y = (1/8)x.
Step-by-step explanation:
The equation that shows inverse variation is (Choice C) y = (1/8)x.
I WILL GIVE BRAINLEST
so the correct answer is the square route of it cause a anylis of a+b=c yup
Step-by-step explanation:
Answer: UTV
Step-by-step explanation:
When you join the lines U, T and V, the number 40 is written between it,
It means it is 40 degrees
Hope that helps! Please make me Brainliest!
During a class election 28 people voted for candidate A. If there were 64 votes total, what is the ratio of votes for candidate B compared to candidate A?
The ratio of votes for candidate B compared to candidate A is 1.3:1
What is Ratio?
A ratio in mathematics illustrates how many times one number contains another.
If there were a total of 64 votes and 28 votes went to candidate A, then the number of votes for candidate B can be found by subtracting the votes for candidate A from the total number of votes:
64 - 28 = 36
So, candidate B received 36 votes.
To find the ratio of votes for candidate B compared to candidate A, we divide the number of votes for candidate B by the number of votes for candidate A:
36 / 28 = 1.3
Therefore, The ratio of votes for candidate B compared to candidate A is 1.3:1
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a box contains 4 red balls, 4 blue balls and 4 white balls. i extract 6 balls at once. what are the number of arrangements of 6 balls with 2 red balls and 2 blue balls ?
The number of arrangements of 6 balls with 2 red balls and 2 blue balls, we need to consider the number of ways to choose 2 red balls from the 4 available red balls and the number of ways to choose 2 blue balls from the 4 available blue balls.
These are both combinations, and we can use the formula for combinations to calculate them:
C(n, k) = n! / (k! (n-k)!).
For the red balls, C(4, 2) = 4! / (2! (4-2)!) = 6.
For the blue balls, C(4, 2) = 4! / (2! (4-2)!) = 6.
The total number of arrangements of 6 balls with 2 red balls and 2 blue balls is the product of the number of arrangements for each type of ball:
C(4, 2) * C(4, 2) = 6 * 6 = 36
So, there are 36 arrangements of 6 balls with 2 red balls and 2 blue balls.
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Area of perimeter of composite figures puzzle question C
The figure's area and perimeter are 562.08 m² and 123.68 m, respectively.
The figure in question is composed of a parallelogram and a crescent. The area of the parallelogram may be calculated using the equation base x level, yielding a value of 336 m².
The area of the crescent is calculated using the formula (π x r²)/2, yielding a value of 226.08 m². As a result, the total area of the figure is 562.08 m².
The parallelogram's perimeter is 86 m, while the boundary of the half circle is 37.68 m, for a total perimeter of 123.68 m.
The figure has a surface area of 562.08 m² and a perimeter of 123.68 m.
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Write an equation in slope-intercept form for the line that passes through the given point and is PERPENDICULAR to the the graph of the given
equation.
(6,-7); y=-3x+1
Step-by-step explanation:
the slope is always the factor of x and the ratio
y coordinates difference / x coordinates difference
when going from one point on the line to another.
in short : y/x
the perpendicular slope is -x/y.
the ratio is turned upside down, and the sign is flipped.
so, the begin of our equation is
y = (1/3)x + b
b (the y-intercept, which is the y-value when x = 0) we get by using the given point and is coordinates:
-7 = (1/3)×6 + b = 2 + b
b = -9
so, the whole equation is
y = (1/3)x - 9
how many teeth per inch should a hacksaw blade have to cut off a piece of aluminum from 1'' square bar
It depends on the thickness of the aluminum bar. Generally, a hacksaw blade with 18 teeth per inch is used to cut off aluminum from 1'' square bar.
The number of teeth a hacksaw blade should have to cut off a piece of aluminum from 1'' square bar depends on the thickness of the aluminum bar.
2. Generally, a hacksaw blade with 18 teeth per inch is used to cut off aluminum from 1'' square bar.
For example, if the aluminum bar being cut is thin (1/8'' or less) then a hacksaw blade with 18 teeth per inch should be used. On the other hand, if the aluminum bar is thicker (greater than 1/8''), then a hacksaw blade with fewer teeth per inch should be used. The fewer teeth per inch the hacksaw blade has, the thicker the aluminum bar it can cut through. It is important to choose the correct hacksaw blade for the job in order to ensure a clean and safe cut.
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Find the volume of a solid with base in the region bounded by y = x^2 and y = 4, and with cross-sections perpendicular to the x-axis that are equilateral triangles with sides of length 2x.
Step-by-step explanation:
To find the volume of this solid, we will use the method of cylindrical shells. We will integrate the cross-sectional area of the equilateral triangles over the height of the solid.
The height of the solid is given by the difference between the upper and lower bounds of the base, which are y = 4 and y = x^2, respectively. The cross-sectional area of an equilateral triangle with sides of length 2x is given by (x^2 * √3)/4.
So, the volume of the solid is given by the integral:
V = ∫[x^2, 4] (x^2 * √3)/4 dx
Using the antiderivative of x^2 * √3 / 4, which is (2x^3 * √3)/(12), we can find the definite integral:
V = [2x^3 * √3]/12 from x^2 to 4
Evaluating the definite integral and simplifying, we get:
V = 16 units^3
So, the volume of the solid is 16 units^3.
Answer:
the volume of the solid is 16 units^3
Step-by-step explanation:
here 3 questions pls answer fast
Answer:
Question 3
First option:
[tex]\dfrac{\ensuremath{\dfrac{4}{5}\;in}}{\dfrac{2}{3}\;hr}[/tex]
Question 4
Third option:
[tex]\dfrac{1}{4} \div \dfrac{2}{5}[/tex]
Question 5
Second Option:
[tex]\dfrac{7}{10}[/tex]
Step-by-step explanation:
Question 3
If [tex]\dfrac{4}{5}[/tex] inches of rain falls every [tex]\dfrac{2}{3}[/tex] hours then the unit rate in inches per hour is inches [tex]\div[/tex] hours
This would be:
[tex]\dfrac{\ensuremath{\dfrac{4}{5}\;in}}{\dfrac{2}{3}\;hr}[/tex]
This is the first option in Question 3 answer choices
Question 4
[tex]\dfrac{\dfrac{1}{4}\;km}{\dfrac{2}{5}\;min}[/tex]
is nothing but the numerator ÷ denominator which would be:
[tex]\dfrac{1}{4} \div \dfrac{2}{5}[/tex]
This is the third option in Question 4 answer choices
Question 5
[tex]\dfrac{1}{2} \div \dfrac{5}{7}\\[/tex]
Flip the divisor [tex]\dfrac{5}{7}[/tex]; it comes [tex]\dfrac{7}{5}[/tex]
Multiply:
[tex]\dfrac{1}{2} \times \dfrac{7}{5}[/tex]
The result is
[tex]\dfrac{7}{10}[/tex]
This is the second option in Question 4 answer choices
Answers:
Question 3: [tex]\frac{\frac{4}{5}in.}{\frac{2}{3}hr.}[/tex]
Question 4: [tex]\frac{1}{4}[/tex] ÷ [tex]\frac{2}{5}[/tex]
Question 5: [tex]\frac{7}{10}[/tex]
Explanations:
Question 3: We're told that rain is falling at a rate of [tex]\frac{4}{5} in.[/tex] every [tex]\frac{2}{3} hr.[/tex], and the unit rate we're looking for is inches per hour (or more precisely, inches per 1 hour). Based on these parameters, we know that you have to divide the unit inches by the unit hours. So using the numbers above, the correct complex fraction to represent this situation would be [tex]\frac{\frac{4}{5} in.}{\frac{2}{3} hr.}[/tex] .
Question 4: In this question, we are given a complex fraction and asked to rewrite it as a simple division problem. The complex fraction is [tex]\frac{\frac{1}{4} km.}{\frac{2}{5} min.}[/tex], so in order to write this as a division expression, you simply take the numerator fraction and divide it by the denominator fraction, which will end up being [tex]\frac{1}{4}[/tex] ÷ [tex]\frac{2}{5}[/tex]. Therefore, that will be your answer.
Question 5: Now, we have a division expression and are asked to use the Keep, Change, Flip method to solve the problem. First and foremost, the Keep, Change, Flip method is essentially telling you that when you are dividing by a fraction, you keep the dividend the same, you change the divisor - specifically switching the numerator with the denominator, which is creating the reciprocal of that fraction - and multiply by the reciprocal of the original divisor instead.
A good example of the Keep, Change, Flip method from above would be [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{1}{3}[/tex]. You keep the dividend, change the divisor, specifically flip the function around to create its reciprocal, and instead multiply by the divisor's reciprocal. Following those steps, [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{1}{3}[/tex] will become [tex]\frac{1}{2}[/tex] × [tex]\frac{3}{1}[/tex] or [tex]\frac{1}{2}[/tex] × [tex]3[/tex].
Now that we understand how to use the Keep, Change, Flip method, we can use it to solve the expression [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{5}{7}[/tex]. We keep [tex]\frac{1}{2}[/tex] the same, flip [tex]\frac{5}{7}[/tex] to make its reciprocal, and multiply [tex]\frac{1}{2}[/tex] by that instead. So the final answer will be [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{5}{7}[/tex] = [tex]\frac{1}{2}[/tex] × [tex]\frac{7}{5}[/tex] = [tex]\frac{7}{10}[/tex].
Have a great day! Feel free to let me know if you have any more questions :)
a. Provide an example of application of the Density Property of Real Numbers.b. State another property of numbers along with an example.
a. Adding the same number to two numbers produces the same result. Example: 4 + 3 = 7, 7 + 3 = 10, b. Commutative Property: Order does not matter. Example: 4 + 7 = 7 + 4.
The Density Property of Real Numbers states that between any two real numbers, there are an infinite number of other real numbers. This means that for any two real numbers, no matter how close or far apart they are, there is always a third number between them. An example of this property would be if we have two numbers, 4 and 7. If we add 3 to each of these numbers, we will get the same result. 4 + 3 = 7, and 7 + 3 = 10. This shows that no matter what two real numbers we pick, there will always be a third number between them, and when we add the same number to both of them, we will get the same result. Another property of numbers is the Commutative Property, which states that the order of the numbers doesn’t matter when performing certain operations. For example, when adding two numbers, 4 + 7 = 7 + 4. This means that it doesn’t matter which number comes first when adding. This property applies to other operations as well, such as multiplication, division, and subtraction.
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Alex drives from city A to city B at a rate of 60 kilometers per hour. If he uses 2 gallons of fuel every 50 miles, how many gallons of fuel will he need to drive five hours to visit his family in city B? (1 mile = 1. 6 kilometers)
Alex will take 3.75 gallons of fuel to drive five hours to visit his family in city B.
First, let's convert the rate of 60 kilometers per hour to miles per hour:
60 kilometers per hour * (1 mile / 1.6 kilometers) = 37.5 miles per hour
Next, we'll use the rate to find out how many miles Alex will drive in 5 hours:
37.5 miles per hour * 5 hours = 187.5 miles
Now that we know the total distance Alex will drive, we can use the information about the fuel consumption (2 gallons every 50 miles) to calculate the number of gallons of fuel he will need:
187.5 miles / 50 miles per 2 gallons = 3.75 gallons
So, Alex will need 3.75 gallons of fuel to drive five hours to visit his family in city B.
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Answer this please. Asap!!
Answer:
Option 4
y = 2x + 3
Step-by-step explanation:
Equation of a line in slope intercept form is
y = mx + b
where m = slope and b = y-intercept
Slope m = rise/run = Δy/Δx with Δy = change in y values between any two points on the line and Δx = corresponding change in x values
b is the y-intercept, value of y when x = 0 and indicates the point at which the line crosses the y-axis
Let's take two distinguishable integer points on the line
(0, 3) and (1, 5) are two points
rise = Δy = 5 - 3 = 2
run = Δx = 1 - 0 = 1
So slope = 2/1 = 2
Since y = 3 at x = 0, y-intercept b = 3
Equation of line is
y = 2x + 3
Option 4)
Answer:
4)y=2x+3
You can see this clearly as the y-intercept is 3 and going two spaces up and one to the side is the slope.
Step-by-step explanation:
A circle has a diameter of 20 what formulas are true
The true statement is that the radius is 10
How to determine the true statementFrom the question, we have the following parameters that can be used in our computation:
A circle has a diameter of 20
This means that
Diameter = 20
Divide both sides by 2 to determine the radius
So, we have
Radius = 10
This means that the true statement is that the radius is 10
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M M M M Which pair of measurements are possible if they are congruent figures
Possible pair of measurements if they are congruent figures are,
⇒ ∠W = 140°
⇒ ∠X = 94°
⇒ ∠Y = 79°
⇒ ∠Z = 47°
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
Lincoln is measuring the angles of quadrilateral WXYZ to determine whether it is congruent to the quadrilateral shown in figure.
Now, We know that;
If two figure are congruent to each other then there corresponding angles and side are equal to each other.
So, The angles of quadrilateral WXYZ are,
⇒ ∠W = 140°
⇒ ∠X = 94°
⇒ ∠Y = 79°
⇒ ∠Z = 47°
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Please find the equation for this parabola. Thank you!
Check the picture below.
so we know it has a vertex at (2 ,3 ) and it also passes through (-2 , -1), then
[tex]~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{a~is~negative}{op ens~\cap}\qquad \stackrel{a~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} h=2\\ k=3\\ \end{cases}\implies y=a(~~x-2~~)^2 + 3\hspace{4em}\textit{we also know that} \begin{cases} x=-2\\ y=-1 \end{cases}[/tex]
[tex]-1=a(-2-2)^2 + 3\implies -4=a(-4)^2\implies -4=16a \\\\\\ \cfrac{-4}{16}=a\implies -\cfrac{1}{4}=a\hspace{10em}\boxed{y=-\cfrac{1}{4}(x-2)^2 + 3}[/tex]