Answer:
You would eliminate Y
Step-by-step explanation:
L 4.6.3 Test (CST): Linear Equations
me.
OA. y+4= -3(x-3)
OB. y-4=-3(x+3)
OC. y-4=3(x+3)
OD. y+4=3(x-3)
(3,-4)
The correct option is OA. y+4= -3(x-3). L 4.6.3 Test (CST): Linear Equations Solution: We are given that a line passes through (3,-4) and has a slope of -3.
We will use point slope form of line to obtain the equation of liney - y1 = m(x - x1).
Plugging in the values, we get,y - (-4) = -3(x - 3).
Simplifying the above expression, we get y + 4 = -3x + 9y = -3x + 9 - 4y = -3x + 5y = -3x + 5.
This equation is in slope intercept form of line where slope is -3 and y-intercept is 5.The above equation is not matching with any of the options given.
Let's try to put the equation in standard form of line,ax + by = c=> 3x + y = 5
Multiplying all the terms by -1,-3x - y = -5
We observe that option (A) satisfies the above equation of line, therefore correct option is OA. y+4= -3(x-3).
Thus, the correct option is OA. y+4= -3(x-3).
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3(7x + 14) =84 Solve this equation
Answer:
2
Step-by-step explanation:
3(7x+14)=84
21x+42=84
21x=84-42
21x=42
x=42/21
x=2
cindy and tom, working together, can rake the yard in 8 hours. working alone, tom takes twice as long as cindy. how many hours does it take cindy to rake the yard alone?
Cindy and tom, working together, can rake the yard in 8 hours. Working alone, Tom takes twice as long as Cindy, it takes Cindy to rake the yard 2 hours
How do we calculate the time it takes Cindy?To find the time it takes Cindy to rake the yard alone, let's use the following steps:Let x be the time taken by Cindy to rake the yard alone . Then the time taken by Tom to rake the yard alone will be 2xIt is given that Cindy and Tom can rake the yard in 8 hours when they work together.
Using the formula for working together, we get:\(\[\frac{1}{x} + \frac{1}{2x} = \frac{1}{8}\]\) Multiplying the equation by the least common multiple of the denominators, we get:\(\[16 + 8 = 2x\]\) Simplifying, we get:\(\[2x = 24\]\)Dividing both sides by 2, we get:\(\[x = 12\]\)Therefore, it takes Cindy 12 hours to rake the yard alone.
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the measurement of the edge of a cube is found to be 15 inches, with a possible error of 0.03 inch. (a) use differentials to approximate the possible propagated error in computing the volume of the cube. (b) use differentials to approximate the possible propagated error in computing the surface area of the cube.
The approximated possible propagated error in computing the volume of the cube is 20.25 .
The approximated possible propagated error in computing the surface area of the cube is 5.4.
The formula's for volume and surface area of cube is as follows,
\(V=a^3\\S=6a^2\)
Where a is the side of the cube.
When you utilize those questionable measurements to calculate something else, error propagation (or uncertainty propagation) occurs to measurement mistakes.
The error in the edge of the cube is 0.03 inch, so
\(a=15\pm0.03\)
Δa=0.03 inches
Now, differentiating the volume function of cube,
\(\frac{dV}{da} =3a^2\\dV=3a^2da\)
Putting the values,
Δ\(dV=3(15)^2\times0.03\\dV=20.25\)
Now, differentiating the surface area function of cube,
\(\frac{dS}{da}=12a\)
Putting the values,
\(dS=12\times15\times da\\dS=12\times15\times 0.03\\dS=5.4\)
Therefore, The approximated possible propagated error in computing the volume of the cube is 20.25 and The approximated possible propagated error in computing the surface area of the cube is 5.4.
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Find the area of the irregular figure.
2 in.
3 in.
5 in.
A = [ ? ]in.2
3 in.
2 in.
4 in.
4 in.
Answer:
area = 35 in²
Step-by-step explanation:
HELP AGAIN PLSS I WILL MARK YOU BRAINLIEST!
Answer:
132
Total Area = Area of top rectangle+Area of trapezoid w/ bases 7 and 19
= base*height+(average of bases)(height of trapezoid)
= 7*4+8*(7+19)/2
= 28+104
= 132
Solve the system of equations algebraically: y = -x2 + 2x + 4 and y = 4 - x.
So:
\(\begin{gathered} y=\text{ 4 -0} \\ y=4 \\ \\ y=4\text{ - 3} \\ y=\text{ 1} \end{gathered}\)Then, the points are (3,1) and (0,4)
The diameter of a basketball is about 1.1 times that of a soccer ball. The diameter of a tennis ball is about 0.3 times that of a soccer ball. How do the volumes of these balls compare to that of a soccer ball. Soccer ball is 5572.5cm
The diameters of the basketball and tennis ball. If the diameter of a soccer ball is 5572.5 cm, then the diameter of a basketball would be 1.1 x 5572.5 = 6129.75 cm, and the diameter of a tennis ball would be 0.3 x 5572.5 = 1671.75 cm.
Now, to compare the volumes of these balls to that of a soccer ball, we can use the formula for the volume of a sphere, which is V = 4/3πr^3, where r is the radius of the sphere.
If we assume that all the balls are perfectly round spheres, then we can calculate their volumes using this formula. The radius of a soccer ball is half its diameter, which is 5572.5/2 = 2786.25 cm.
Using this radius, we can calculate the volume of a soccer ball as V = 4/3π(2786.25)^3 = 523,598,775.5 cubic centimeters.
For the basketball, the radius would be half its diameter, which is 6129.75/2 = 3064.875 cm. Using this radius, we can calculate the volume of a basketball as V = 4/3π(3064.875)^3 = 844,558,788.2 cubic centimeters.
For the tennis ball, the radius would be half its diameter, which is 1671.75/2 = 835.875 cm. Using this radius, we can calculate the volume of a tennis ball as V = 4/3π(835.875)^3 = 180,816,137.9 cubic centimeters.
Comparing these volumes to that of a soccer ball, we can see that the basketball has a volume that is approximately 1.61 times larger than the soccer ball, while the tennis ball has a volume that is approximately 0.35 times smaller than the soccer ball.
In summary, the basketball has a larger volume than the soccer ball, while the tennis ball has a smaller volume than the soccer ball.
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During an airplanes ascent, the plane reaches a horizontal distance from the airport of 1 km and then 7 km. The plane ascends at a slope of 2/3. Find the vertical distance (y) in feet that the plane traveled during the indicated spots
Answer:
The vertical distance in feet that the plane traveled was 4 Km
Step-by-step explanation:
The Slope of a Line
Suppose we know a line passes across points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
\(\displaystyle m=\frac{y_2-y_1}{x_2-x_1}\)
The airplane ascent will be modeled with the equation of a line because we are given a constant slope of m=2/3. We also know the horizontal distances are x1=1 Km and x2=7 Km. Substituting in the formula above:
\(\displaystyle \frac{2}{3}=\frac{y_2-y_1}{7-1}\)
Operating:
\(\displaystyle \frac{2}{3}=\frac{y_2-y_1}{6}\)
Solving for y2-y1, we get the vertical distance traveled by the plane:
\(\displaystyle y_2-y_1=6*\frac{2}{3}=4\)
Thus, the vertical distance in feet that the plane traveled was 4 Km
Point J located at (2, 7) is rotated 90 degrees counterclockwise about (-1, -3). What is the y-coordinate of J’?
A. 9
B. 0
C. -11
D. -9
Given:
Coordinates of point J are J(2,7).
It is rotated 90 degrees counterclockwise about (-1, -3).
To find:
The y-coordinate of J’.
Solution:
If a figure rotated 90 degrees counterclockwise about a point (a,b), then
\((x,y)\to (-(y-b)+a,(x-a)+b)\)
Point J is rotated 90 degrees counterclockwise about (-1, -3). So, a=-1 and b=-3.
\((x,y)\to (-(y-(-3))+(-1),(x-(-1))+(-3))\)
\((x,y)\to (-(y+3)-1,(x+1)-3)\)
\((x,y)\to (-y-3-1,x+1-3)\)
\((x,y)\to (-y-4,x-2)\)
Coordinates of point J are J(2,7).
\(J(2,7)\to J'(-7-4,2-2)\)
\(J(2,7)\to J'(-11,0)\)
Therefore, the y-coordinate of J' is 0. Hence, the correct option is B.
Write the first expression in terms of the second if the terminal point determined by t is in the given quadrant. cos(t), sin(t); quadrant iv
if the terminal point indicated by t is in the provided quadrant, the first equation in terms of the second quadrant iv; cos(t), sin(t). \(\sin t=\sqrt{1-\frac{1}{\sec ^2 t}}\)
What is Trig Identities?Trig identities come in handy when we need to express one trig function in terms of another. The most famous trig identity is derived straight from the Pythagorean Theorem:
sin² t + cos² t = 1
According to the given data:For an angle t in Quadrant IV, we know sin t is positive.
From the trig identity sin² t + cos² t = 1
we can also write as:
sin t + cos t:
Now,
sin² t + cos² t = 1
sin² t = 1 - cos² t
sin t = ±√( 1 - cos² t)
As noted above,
sin t is positive for t in the Quadrant IV, and so we have
sin t = √( 1 - cos² t)
We know that
\(\cos t=\frac{1}{\sec t}\)
So, the equation will be
\(\sin t=\sqrt{1-\frac{1}{\sec ^2 t}}\)
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Need Help Quickly!
Which expressions describe the area of the shaded region? Select all that apply.
A rectangle is divided into 12 columns and 6 rows, making 72 smaller rectangles. An area that includes 9 smaller rectangles and is the intersection of 3 of the 12 columns and 3 of the 6 rows is shaded.
Answer:
c
Step-by-step explanation:
the height is 6 and the length is 12
the shaded part is 3 boxes by 3 boxes
we can write it as 3/6 by 3/12
it simplifies to 1/2 by 1/4
Answer:
A & C
Step-by-step explanation:
It is A & C!
It is A because:
You said it yourself in the last paragraph of your question:
"An area that includes 9 smaller rectangles and is the intersection of 3 of the 12 columns and 3 of the 6 rows is shaded."
A is fits the perfect description for what you said in the last paragraph.
It is C because:
C is the other answer because it's an equivalent fraction to A.
1/4 x 3/3 = 3/12
1/2 = 3/6
Hope this helps, rose <3
what is the least common denominator of 5/9 and 1/12
The least common factor of the denominator will be 36.
What is the least common factor (LCM)?The corresponding value integer that can be divided by both is known as the lowest relevant multiple, commonly referred to as the lowest common multiple of pair (or more) numerals a and b.
The fraction numbers are given below.
5/9 and 1/12
The factors of 9 are given as,
9 = 3 x 3
The factors of 12 are given as,
12 = 2 x 2 x 3
Then the least common factor of the denominator is given as,
LCM of 9 and 12 = 2 x 2 x 3 x 3
LCM of 9 and 12 = 36
The least common factor of the denominator will be 36.
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What is 1232456 * 789456? I will mark brainliest!!
Answer:
972,969,793,936Step-by-step explanation:
972,969,793,936 is the answer when the numbers and multiplied.
You have to multiply according to the different places you put the numbers in.
Hope this helped,
Kavitha Banarjee
789101112
Step-by-step explanation:If the length of the minor axis of an ellipse is 6 units and the length of the major axis is 10 units, how far from the center are the foci located?
The distance from the center to where the foci is located is 8 units
How to determine the distanceThe formula associated with the focus of an ellipse is given as;
c² = a² − b²
where;
c is the distance from the focus to center a is the distance from the center to a vertex , major axis is 10 units b is the distance from the center to a co-vertex, minor axis is 6 unitsLet's use the Pythagorean theorem
Hypotenuse square = opposite square + adjacent square
Substitute the values into the formula
c² = 10² - 6²
Find the square
c² = 100 - 36
c² = 64
Find the square root
c = √64
c = 8
Thus, the distance from the center to where the foci is located is 8 units
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A pool has dimensions of 40m by 20m. We'd like to add a tile path surrounding the pool with a width of 1m all the way around the pool. What's the area of the path?
There are 32 students in a class.15 students play football only; 10 students play cricket only : 3 students do not play any games. How many students play both games?
Answer:
4 students
Step-by-step explanation:
32 - 3 = 29
10 + 15 = 25
29 - 25 = 4
a4+5a2b2+9b4 help me
Answer:
(a²+3b²+ab)(a²+3b²-ab)
Step-by-step explanation:
a⁴ + 5a²b² + 9b⁴
=a⁴ + 6a²b² + 9b⁴- a²b²
= (a²+3b²)²-(ab)²
= (a²+3b²+ab)(a²+3b²-ab)
Let g be the function with first derivative g'(x) = √x^3 + x for x > 0. If g (2) = −7, what is the value of g (5) ?
The value of g(5) can be determined by integrating the given derivative function and using the initial condition g(2) = -7. The value of g(5) is approximately 57.955.
To find the value of g(5), we need to integrate the derivative function g'(x). The antiderivative of √\(x^3\) + x with respect to x will give us the original function g(x). Let's perform the integration:
∫√\(x^3 + x dx\) = ∫\((x^(3/2) + x) dx = (2/5)x^(5/2) + (1/2)x^2 + C\)
Now, using the initial condition g(2) = -7, we can determine the constant of integration C:
\((2/5)(2)^(5/2) + (1/2)(2)^2 + C = -7\)
Simplifying the equation, we can solve for C:
(8/5) + 2 + C = -7
C = -7 - (8/5) - 2
C = -7 - (16/5) - (10/5)
C = -7 - (26/5)
C = -35/5 - 26/5
C = -61/5
Now that we have the value of C, we can substitute it back into the original function and evaluate g(5):
g(5) = \((2/5)(5)^(5/2) + (1/2)(5)^2 - (61/5)\)
Calculating this expression will give us the value of g(5).
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Write an expression equivalent to 6(x+y)-5 and state which property you used to write
Answer:
6x+6y-5 distributive property
Step-by-step explanation:
6(x+y)-5
Distribute using the distributive property
6x+6y-5
10 pounds of
strawberries cost
$20. 7 pounds of
strawberries cost
$14. What is the
cost per pound?
On the graph below, draw any line with a slope of *positive* 2 and draw any line with a slope of *negative* 2.
Refer to the image for the graph of the lines.
The common form of the equation of a line is y = mx + c, where m is the slope of the line and c is a constant.
We need to draw any line with a slope m = 2, and
another line with a slope m = -2.
Disclaimer: Let us assume that the constant c = 0.
Then the equation to the line with a slope of "positive" 2 is given by
y = 2x
Then the equation to the line with a slope of "negative" 2 is given by
y = -2x
Refer to the attached image for the graph of the lines with the slope of "positive" 2 and "negative" 2.
f: green line indicates a line with a slope of "positive" 2.
g: blue line indicates a line with a slope of "negative" 2.
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C. J. Maddison, A. Mnih, and Y. Whye Teh. The Concrete Distribution: A Continuous Relaxation of Discrete Random Variables. ArXiv e-prints, November 2016.
The citation you provided refers to a research paper titled "The Concrete Distribution: A Continuous Relaxation of Discrete Random Variables" authored by C. J. Maddison, A. Mnih, and Y. Whye Teh.
The paper was published as part of the ArXiv e-prints in November 2016.It explores a mathematical concept known as the concrete distribution, which is a technique for approximating discrete random variables with continuous distributions. The authors propose a method that allows for smooth and gradient-based optimization of models that involve discrete random variables, which can be challenging using traditional approaches.
The research paper likely delves into the theoretical foundations of the concrete distribution, its properties, and its application in various domains. It could discuss how this concept enables more efficient and effective modeling and inference for problems involving discrete random variables, which are commonly encountered in areas such as machine learning, statistical modeling, and optimization.
To gain a comprehensive understanding of the contents and findings of this research paper, it would be necessary to review the full document.
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PLEASEEE HELPPPPP!!!! у
Test Scores in Relation to Homework
2.
100
How would you characterize the relationship
between the hours spent on homework and
the test scores? Explain.
90
80
70
60
Test Scores
50
3. Draw a line of best fit on the graph.
40
4.
30
Based on your line, what is the likely test
score of a student who does not study for
the test?
20
10
0
1
2
3
8
9
4 5 6 7
Hours of Homework
Answer:
2. The more hours spent doing homework the better the test scores.
3. Just draw a line that runs through (1,50) (2,55) (3,60) (4,65)
4. Dunno
Step-by-step explanation:
Answer:
Number 4 would be 45%
Step-by-step explanation:
Find the slope of the line. x=5
Answer:
x=5
Step-by-step explanation:
the slope of the line is undefined
Answer:
x=5
Step-by-step explanation:
The slope is unidentified
Find the distance to walk along arc NQ pls help
Answer:
2 distance
Step-by-step explanation:
you solve it and see it's easy know first try I will do it
If -8-8y=6-2y, what is the value of y?
Answer:
-7/3
Step-by-step explanation:
The first step is to combine like numbers. Although there are several different ways to go about doing this, I started by adding 2y to both sides which left me with -8-6y=6. I then added 8 to both sides and got 6y=14. Now divide 6 on both sides to get "y" by itself which left me with y = -14/6. When you simplify the answer you get -7/3.
Evaluate the expression. 2 – 9 ÷ 3
Answer:
-1
Step-by-step explanation:
2 – (9 ÷ 3)
divide 9 and 3
2 - 3
subtract 2 from 3 and you get
-1
Answer:
-1
Step-by-step explanation:
Its just the answer.
A rectangle is placed around a semicircle as shown below. The length of the rectangle is 8 cm. Find the area of the shaded region. Use the value 3.14 for at, and do not round your answer. Be sure to include the correct unit in your answer.
PLEASE HELP
Answer:
Area of the shaded region = 6.88 cm²
Step-by-step explanation:
Area of the shaded region = Area of the rectangle - Area of the semicircle
Area of the rectangle = Length × Width
Length of the rectangle = AD = 8 cm
Width of the rectangle = OP = 4 cm [OP, OB and OC are the radii of the circle which are equal in measures]
Area of the rectangle = 8 × 4 = 32 cm²
Area of the semicircle = \(\frac{1}{2}\pi r^{2}\)
= \(\frac{1}{2}\pi (OP)^{2}\)
= \(\frac{1}{2}\pi (4)^{2}\)
= 25.12 cm²
Area of the shaded region = 32 - 25.12
= 6.88 cm²
Please help me thanks please
Will give you brainlest
Answer:
38
Step-by-step explanation:
(4² - (4 - 2)²) × 3.14 = 37.68 ≈ 38