Answer:
x | y
1. | 0 | 2
2.| -2 | 5
3.| 1 | 0.5
4.| 4 | -4
Step-by-step explanation:
3x + 2y = 4
manipulate the literal equation
3x + 2y = 4
y = (4 - 3x)/2
now substitute in the given values and solve
x = 0
y = (4 - (3 * 0))/2
y = 2
x = -2
y = (4 - (3 * -2))/2
y = 5
x = 1
y = (4 - (3 * 1))/2
y = 0.5
x = 4
y = (4 - (3 * 4))/2
y = -4
which means that:
x | y
1. | 0 | 2
2.| -2 | 5
3.| 1 | 0.5
4.| 4 | -4
The line segment joining the points P(-3,2) and Q(5,7) is divided by the y-axis in the ratio:
Answer:
Step-by-step explanation:
The line segment joining two points P and Q can be represented by the equation of a straight line in the form y = mx + b, where m is the slope and b is the y-intercept.
To find the equation of the line, we need to find the slope, which can be calculated using the formula:
m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of the points P and Q, respectively.
In this case, the coordinates are:
P = (-3, 2) and Q = (5, 7)
So, the slope is:
m = (7 - 2) / (5 - (-3)) = 5 / 8
Next, we can use either of the points to find the y-intercept. Let's use point P:
b = y - mx, where y and x are the y and x coordinate of the point, respectively.
In this case,
b = 2 - m * (-3) = 2 - (5/8) * (-3) = 2 + 15/8 = 89/8
So, the equation of the line joining the points P and Q is:
y = (5/8)x + 89/8
Now, to find the point where the line crosses the y-axis, we need to find the x-coordinate of the point where y = 0.
So, we have:
0 = (5/8)x + 89/8
Solving for x, we get:
x = -(89/8) / (5/8) = -89 / 5
This means that the line crosses the y-axis at the point (-89/5, 0). To find the ratio in which the line segment is divided by the y-axis, we need to find the ratio of the distance from the y-axis to point P to the distance from the y-axis to point Q.
Let's call the point of intersection with the y-axis R. The distances are then:
PR = (3, 2) and QR = (5 - (-89/5), 7)
The ratio of the distances is then:
PR / QR = (3, 2) / (5 - (-89/5), 7) = 3 / (5 + 89/5) = 3 / (94/5) = 15/47
So, the line segment joining the points P and Q is divided by the y-axis in the ratio 15:47.
Which relation is a function?
The only graph that represents a function is: Graph D
How to identify a function?A function is defined as a relationship or expression that involves one or more variables. It typically has a set of input and outputs. Each input has only one output. The function is the description of how the inputs relate to the output.
A function is a relation which describes that there should be only one output for each input (or) we can say that a special kind of relation (a set of ordered pairs), which follows a rule i.e., every X-value should be associated with only one y-value is called a function.
From the graphs, we can see that:
Graph A has 2 outputs at x = -2
Graph B has 2 outputs at x = 0
Graph C has two outputs at x = -1
Graph D has a unique output for every input and as such it is a function
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Mike ordered the extra large pizza pitched below, which has an area of 144π square inches.
If james orders a pizza that is 1/2 the radius of mike's pizza what is the area of jame's pizza?
Answer:
72 pie square inches
Step-by-step explanation:
size of Miles pize=144 pie square inches
james pize is half of Mike=144 pie square inches/2
=72 pie square inches
When dividing a whole number by a power of ten that is greater than one, what happens to the quotient?
The quotient stays the same as the dividend.
The quotient becomes larger than the dividend.
The quotient becomes smaller than the dividend.
The quotient can become larger or smaller depending on the dividend.
Answer:
The quotient becomes smaller than the dividend.
Step-by-step explanation:
The table contains the lengths of the sides of different triangles. Do the given side lengths form a right triangle?
Drag and drop Yes or No into the box next to the side lengths.
5 cm, 12 cm, 13 cm
8 cm, 9 cm, 10 cm
3 cm, 4 cm, 4 cm
7 cm, 24 cm, 25 cm
1 cm, 4 cm, 9 cm
Answer:
ans: it's order wise
a) yes
b) no
c) no
d) no
Step-by-step explanation:
use pythagoras theorem
h² = p² + b²
data given satisfying the theorem form right angled triangle
!!!!! Due today !!!!!!!
Answers:
5)
a.Highest- 96
Lowest-52
b.74
c. 70-80
d. 13
e. 7
6)
a. 89%
b. 51%
c. In the morning(89%)
Hi can someone please help me I’ve been sitting here for 15 minutes
Answer:
15 and 13
Step-by-step explanation:
Use SSS to explain why the triangles in each pair are congruent.
The order in which the sides are listed does not matter for the SSS criterion. As long as the three sides of one triangle have the same lengths as the three sides of another triangle, the triangles are congruent.
SSS stands for Side-Side-Side, which is a congruence criterion in geometry. It states that if the three sides of one triangle are equal to the three sides of another triangle, then the two triangles are congruent.
To explain why the triangles in each pair are congruent using SSS:
Pair 1:
Triangle ABC and Triangle DEF are congruent because they have the same lengths for all three sides.
AB = DE
BC = EF
AC = DF
Pair 2:
Triangle PQR and Triangle STU are congruent because they have the same lengths for all three sides.
PQ = ST
QR = TU
PR = SU
The order in which the sides are listed does not matter for the SSS criterion. As long as the three sides of one triangle have the same lengths as the three sides of another triangle, the triangles are congruent.
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A ladder is leaning against a building forming an 65° angle with the ground. the length of the ladder is 9 ft. how far is the base of the ladder from the base of the building? round your answer to the nearest tenth
The distance of the base of the ladder from the base of the building is equal to 8.17 ft to the nearest tenth using the trigonometric ratio of sine of the angle 65°
What are trigonometric ratiosThe trigonometric ratios involves the relationship of an angle of a right-angled triangle to ratios of two side lengths. Basic trigonometric ratios includes; sine cosine and tangent.
we shall represent the distance of the base of the ladder from the base of the building with the letter x so that:
sin 65° = x/9 ft {adjacent/hypotenuse}
x = sin 65° × 9 ft
x = 8.1568
Therefore, the distance of the base of the ladder from the base of the building is equal to 8.17 ft to the nearest tenth using the trigonometric ratio of sine of the angle 65°.
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Himari is solving the equation 4 ( x - 3 ) = 16. Her first step is 4x - 12 = 16. Which step could be the next step? Select all that apply.
Answer:
Her next step would be to add 12 to both sides of the equation
Step-by-step explanation:
Which would make the equation 4x=28
Then you divide both sides by 4 giving you x=7
Answer:
the answers are c an d
Step-by-step explanation:
becuz they are
the intensity of radiation at a distance x meters from a source is modeled by the function r given by r(x)=k/x^2, where k is a positive constant.Which the followig gives the average intensity of radioation between 10 meters and 50 meters from source? a. k/900
b. -k/50 + k/10
c. 1/40 (-k/50 + k/10)
d. 1/2 (k/100 + k/2500)
Step-by-step explanation:
The average intensity of radiation between 10 meters and 50 meters from the source can be found using the following formula:
Average Intensity = (1 / (50 - 10)) * (Integral of r(x) from x=10 to x=50)
Using the formula for r(x), the integral of r(x) between 10 and 50 can be found as:
Integral of r(x) = -k * ln(x) evaluated at x = 50 and x = 10
Therefore, the average intensity of radiation between 10 and 50 meters from the source is given by:
Average Intensity = (1 / (50 - 10)) * (-k * (ln(50) - ln(10)))
This simplifies to:
Average Intensity = (1 / 40) * (-k * ln(5))
This is equivalent to choice c.
Average Intensity = 1/40 (-k/50 + k/10).
An inverted pyramid is being filled with water at a constant rate of 70 cubic centimeters per second. The pyramid, at the top, has the shape of a square with sides of length 8 cm, and the height is 15 cm. Find the rate at which the water level is rising when the water level is 4 cm.
Answer:
\(\frac{dh}{dt}=1.45cmsec^{-1}\)
Step-by-step explanation:
Rate of Water Fill \(R=\frac{dv}{dt}=70cm^3\)
Length \(l=8cm\)
Height \(H=15cm\)
Water level \(L_w= 4cm\)
Generally the equation for relationship b/w h and a is mathematically given by
Since by the properties of similar triangles
\(k=\frac{h}{1/2}\)
Let
\(h=15cm \\\\a=8cm\)
\(k=\frac{h}{1/2a}\)
\(k=\frac{15}{4}\)
Therefore
\(\frac{h}{1/2a}=\frac{15}{4}\)
\(a=\frac{8h}{15}\)
Generally the equation for volume of Pyramid is mathematically given by
\(V=\frac{1}{3}ah^2h\)
Subsitute a
\(V=\frac{1}{3}(\frac{8h}{15})h^2h\)
Therefore
\(\frac{dv}{dt}=\frac{(\frac{1}{3}(\frac{8h}{15})h^2h)}{dt}\)
\(\frac{dv}{dt}=\frac{64}{255}(h^2\frac{dh}{dt})\)
Since
\(\frac{dv}{dt}=70cm^3s^{-1}\)
Therefore
\(70cm^3s^{-1}=\frac{64}{255}(h^2\frac{dh}{dt})\)
\(\frac{dh}{dt}=\frac{70}{169}*\frac{225}{64}\)
\(\frac{dh}{dt}=1.45cmsec^{-1}\)
In the image below, the inscribed angles of T and S intercept the same arc.
If arc YZ has a measure of 70 degrees, what is the sum of measures of the inscribed angles at T and S?
The measure of each inscribed angle at T and S is 72.5 degrees, and the sum of their measures is: 145 degrees
What is inscribed angle ?
An inscribed angle is an angle formed by two chords of a circle that have a common endpoint on the circle. The vertex of the inscribed angle is on the circle, and the sides of the angle intersect the circle at two distinct points.
There are some important properties of inscribed angles:
The measure of an inscribed angle is half the measure of the arc it intercepts. This is called the inscribed angle theorem.Two inscribed angles that intercept the same arc are equal in measure.If one side of an inscribed angle is a diameter of the circle, then the angle is a right angle.According to the question:
If the inscribed angles of T and S intercept the same arc, then they must be equal in measure. Let's call the measure of each angle x.
Since the sum of the measures of the angles in a triangle is 180 degrees, we can set up an equation to find the measure of the third angle in triangle TSY:
x + x + measure of angle YTS = 180 degrees
Simplifying the equation, we get:
2x + measure of angle YTS = 180 degrees
But we know that the measure of angle YTS is equal to half the measure of arc YZ, since it is an inscribed angle intercepting the same arc. So:
measure of angle YTS = 1/2 * measure of arc YZ = 1/2 * 70 degrees = 35 degrees
Substituting this value into our equation, we get:
2x + 35 degrees = 180 degrees
Solving for x, we get:
2x = 145 degrees
x = 72.5 degrees
Therefore, the measure of each inscribed angle at T and S is 72.5 degrees, and the sum of their measures is:
72.5 degrees + 72.5 degrees = 145 degrees
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Which data set could be represented by the box plot shown below? A horizontal boxplot is plotted along a horizontal axis marked from 10 to 26, in increments of 1. A left whisker extends from 12 to 15. The box extends from 15 to 21 and is divided into 2 parts by a vertical line segment at 19. The right whisker extends from 21 to 24. All values estimated. Choose 1 answer: Choose 1 answer: (Choice A) 13 1313, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 A 13 1313, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 (Choice B) 12 1212, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 B 12 1212, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 (Choice C) 12 1212, 15 1515, 15 1515, 17 1717, 20 2020, 20 2020, 20 2020, 22 2222, 24 2424 C 12 1212, 15 1515, 15 1515, 17 1717, 20 2020, 20 2020, 20 2020, 22 2222, 24 2424 (Choice D) 12 1212, 15 1515, 17 1717, 17 1717, 19 1919, 19 1919, 22 2222, 22 2222, 24 2424 D 12 1212, 15 1515, 17 1717, 17 1717, 19 1919, 19 1919, 22 2222, 22 2222, 24 2424
The dataset represented by the given box plot is 12, 15, 15, 17, 19, 19, 20, 22, 24 option B.
What is box plot?A box plot, sometimes called a box whisker plot, shows the distribution of a dataset graphically. The minimum value, the first quartile (25th percentile), the median (50th percentile), the third quartile (75th percentile), and the maximum value are the five main values used to standardise this method of displaying the distribution of data.
Two whiskers that extend from a rectangular box make up a box plot. The range of values between the first and third quartiles is represented by the box, which is known as the interquartile range (IQR).
From the given box plot we observe that the minimum value is 12 and the maximum value is 24.
Here, the median is 19.
From the information the two data set that have the corresponding values are:
12, 15, 15, 17, 19, 19, 20, 22, 24
12, 15, 17, 17, 19, 19, 22, 22, 24
The lower quartile is 15.
The upper quartile is 21.
Calculating the lower quartile for the data sets:
12, 15, 15, 17, 19, 19, 20, 22, 24
Lower quartile = 15
Hence, the dataset represented by the given box plot is 12, 15, 15, 17, 19, 19, 20, 22, 24 option B.
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Differentiate y=x4 -x
Answer:
Step-by-step explanation:
To differentiate the function y = x^4 - x, we will use the power rule of differentiation. The power rule states that if f(x) = x^n, then the derivative of f(x) is f'(x) = nx^(n-1).
So, for y = x^4 - x, we can find the derivative as follows:
y' = 4x^3 - 1
So, the derivative of the function y = x^4 - x is y' = 4x^3 - 1.
Which of the following is true about the expression 7 + V3?
Answer:
is this a multiple-choice question?
Step-by-step explanation:
**i'll go back and change my answer, i promise**
In recent years, Sheffield Transportation purchased three used buses. Because of the frequent turnover in the accounting department, a different accountant was in charge of selecting the depreciation method for each bus, and various methods have been used. Information concerning the buses is summarized in the table below. Bus 1, Bus 2, Bus 3, For the declining-balance method, the company uses the declining method rate. For units-of-activity method, total miles are expected to be 125,000. Actual miles of use in the first 3 years were 2021, 27,000; 2022, 35,000; and 2023, 33,000.
(a1) For Bus #3, calculate depreciation expense per mile under units-of-activity method.
Under the units-of-activity method, the depreciation expense per mile for Bus #3 is $0.4616.
How is the depreciation expense per mile determined?The units-of-activity method is one of the depreciation methods in use.
Under the units-of-activity method, the depreciation expense per unit is determined by dividing the depreciable amount by the total units of activity.
The depreciation amount (the value of the asset subject to depreciation) is the net of the total cost less the salvage value.
Depreciable amount of Bus #3 = $57,700 ($66,500 - $8,800)
Expected total miles for Bus #3 = 125,000
Depreciation expense per mile for Bus #3 = $0.4616 ($57,700 ÷ 125,000)
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Question Completion:Bus Acquired Cost Salvage Useful Life Depreciation
Value in Years Method
1 1/1/12 $99,100 $7,900 4 Straight-line
2 1/1/12 128,000 11,000 4 Declining- balance
3 1/1/13 66,350 8,800 5 Unit-of-activity
Mary Beth uses 7/12 yards of fabric to make a pillow. How much fabric will she need? Between what two whole numbers
The range of whole numbers between which the decimal falls is 0 yards to 1 yard.
What is a whole number?The whole number is set to positive integers including 0. i.e 0, 1, 2, 3, and so on.
To find the total amount of fabric Mary Beth needs to make a pillow, we first need to convert 7/12 yards into a decimal. To do this, we can divide the numerator by the denominator:
7/12 = 7 / 12 = 0.5833...
So, Mary Beth needs approximately 0.5833 yards of fabric to make a pillow.
To determine the range of whole numbers between which the decimal falls, we can round up to the next whole number (1 yard) and round down to the previous whole number (0 yards). Therefore, the range of whole numbers between which the decimal falls is 0 yards to 1 yard.
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Tony's Used Car Dealership is selling a car for $12,000. This price represents a 20%
reduction from the original price of the car. What was the original price of the car?
The original price of the car is $15,000
Let us assume the original price of car be x. So, forming the equation to find the value of x and hence the original price of the car.
Equation -
x - 20% × x = 12000
x - 20/100×x = 12000
Cancelling zero as common in both numerator and denominator, on the left hand side of the equation
x - x/5 = 12000
Taking LCM on Left Hand Side of the equation
(5x - x)/5 = 12000
Rewriting the equation
4x = 12000 × 5
Performing multiplication on Right Hand Side of the equation
4x = 60,000
x = 60,000 ÷ 4
Performing division
x = 15,000
Therefore, the original price of the car is $15,000.
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john goes out to eat at a local restaurant the bill comes to $47.38 john wants to leave a 20% tip how much of a tip should he leave?
Answer:
$56.86
Step-by-step explanation:
a Find the volume of the specified cone. Use 3.14 for x, and round your answer to the nearest whole number. Radius = 4 in., Height = 9 in. 301 cu. in. b. 226 cu. in. 75 cu. in. d. 151 cu. in. Please select the best answer from the choices provided ΟΑ OB с OD
volume of cone approximately is 151 cubic inch
USE THE DIATRIBUTIVE PROPERTY TO WRITE 6(W=5) AS AN EQUIVALENT EXPRESSION
answer ?
30 or 30W
Step-by-step explanation:
this isn't a real equation. you can't have an equal sign inside a parentheses but assuming that the question is 6(W) and W equals 5, we can substitute the 5 and distribute the 6 to get 6x5 = 30
Rewrite (123 + 456) + 789 using the Associative Law of Addition
Answer:
123 + (456 + 789)
Step-by-step explanation:
since this is an addition problem, the parenthesis don't matter, and they can be put wherever you want.
(123 + 456) + 789
123 + 456 + 789
(123 + 456 + 789)
123 + (456 + 789)
technically, any of these would work, but I think the kind of answer the problem is looking for is;
123 + (456 + 789)
Some students are making muffins for a fundraiser. They have already made 80 muffins
and they can make 30 muffins in an hour. How many additional hours would they spend
to make 380 muffins?
Answer:
10 hours
Step-by-step explanation:
380 - 80 = 300
30 : 1 = 300 : x
x = 300 / 30
x = 10
Please help!!
Thankyou!!
The scale factor is: 1.8
because of :
\(\frac{36}{20}=1.8\\ \\\\\frac{25.2}{14}=1.8\)
Which is the graph of f(x)=4(1/2)x
Answer:
here's the graph
Step-by-step explanation:
What are the domains and rage of the function
Answer:
(ex1)
Domain: 1 ≤ x ≤ 5
Range: 11 ≤ y ≤ 13
(a)
Domain: 2 ≤ x ≤ 6
Range: 0 ≤ y ≤ 4
(b)
Domain: -3 ≤ x ≤ 4
Range: -2 ≤ y ≤ 6
Step-by-step explanation:
The domain is the set of values that x can take, and the range is the set of values that y can take. So to determine each one, read the maximum and minimum values possible for each.
Need help
Pleaseeeee
Answer:
164 m^2
Step-by-step explanation:
You can think of the shaded area in different ways. One of the ways is the entire outer colored rectangle minus the area of the small white rectangle inside.
The large colored rectangle is 12 m by 15 m.
The inner rectangle is 8 m tall. The width is 12 m - 5 m - 5 m = 2 m
A = 12 m * 15 m - 2 m * 8 m
A = 180 m^2 - 16 m^2
A = 164 m^2
Two numbers are graphed on the line below. Consider the inequality t
Answer:
-7<-3
Step-by-step explanation:
T=-7
R=-3
The diagram shows a prism. Draw the front and side elevation of the prism on the grid. Use the scale 2 squares to 1m.
I know that the side elevation is correct but I can't get the front. Please help!
The sketch of the front elevation and the side elevation of the prism are added as an attachment
How to draw the front elevation and the side elevation of the prismFrom the question, we have the following parameters that can be used in our computation:
The prism
Using the figure as a guide, we understand that:
The front elevation is a rectangle of 2m by 0.5m
While the side elevation is a rectangle merged with a trapezoid
Next, we draw the elevations (see attachment)
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