A figure is shown, where lines CE and FD intersect at point B.
.
A figure is shown, where lines CE and FD intersect at point B.
.
Angle ABC is complementary to angle DBC.
What is the measure, in degrees of ?
Answer:
Step-by-step explanation:
Its 4.51
Which unit of length would be most appropriate to describe the length of your
foot?
Answer:
inches
Step-by-step explanation:
well depends on how big your foot is
The graph of a function is shown below. Use the graph of the function to find its average rate of change from x=-4 to x=2
Based on the interval, the average rate of change of the function is 4.0
How to estimate the average rate of change of the function f?The graph that completes the question is added as an attachment
From the graph, we can see that the equation of the graph is a quadratic equation
Also, from the question:
We have the interval to be:
The interval is given as
x = -4 to x = 2
This can be represented as
(a, b) = (-4, 2)
From the attached graph, we have
f(-4) = 22
f(2) = -2
The estimate of the average rate of change f is calculated as(to one decimal place)
Rate = [f(b) - f(a)]/[b - a]
Substitute the known values in the above equation
This gives
Rate = [f(2) - f(-4)]/[2 + 4]
Substitute the known values in the above equation
So, we have
Rate = [-2 - 22]/[2 + 4]
Evaluate
Rate = -4.0
Hence, the estimate (to one decimal place) of the average rate of change of the graph is 4.0
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Which of these scales is equivalent to the scale 1 cm to 5 km? Select all that apply.
3cm to 15 km
1cm to 150 km
5 cm to 1 km
5cm to 2.5 km
PLZ HELP
Answer: 3 cm to 15 km
Step-by-step explanation: 1 ÷ 5 = 0.2
3 ÷ 15 = 0.2
Abigail invites her friends over for a pajama party. She bought 12 tubs of popcorn for her friends. Her brother, Aiden took away a few tubs of popcorn for his friends. If 5 tubs of popcorn remain, how many tubs did Abigail share with her friends?
Answer:
7 tubs
Step-by-step explanation:
aiden took "x" tubs
remaining tubs=5
12-x=5
x=12-5
x=7
Answer:
Step-by-step explanation:
FrEe PoInTs ThE sTrUgGlE iS rEaL bRo
Find an equation of a line that passes through the points (-2,-4) and (2,-6)
Answer:
y = -2/4x -5
Step-by-step explanation:
Assuming that the answer will be in slope intercept form, and not standard form. It would go a little like this:
Finding the slope:
y2 - y1/x2 - x1
-6 - (-4) / 2 -(-2)
-6 + 4 / 2 + 2
-2/4
Simplifying further, the slope would be: -1/2
The slope would be -1/2.
Now, checking desmos, the equation would be: y = -2/4x -5.
1. Find the equation of the image of the circle x² + y2 + 16x-24y + 183 = 0 by rotated the line mirror 4x + 7y + 13 = 0. 2. The image of the circle (x - 3)² + (y-2)² = 1 in the line mirror ax + by = 19 is (x-1)³ + (y-16)2 = 1 then, find the values of (a, b). 3. Find the equation of a line passing through the origin and making an angle with the 4 line y-3x-5. 4. A parabola is drawn with its focus at (3,4) and vertex at the focus of the parabola y²-12x - 4y + 4 = 0. The n find equation of the parabola. 5. If the line ax + by + c = 0 touches the circle x² + y² - 2x = and is normal to the circle x² + y² + 2x - 4y + 1 = 0, then find the value of (a, b). 6. If the line through the points (-2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x. -3 7.1² 14 231= [] then find the matrix A 8. Find the equation of the ellipse having its center at the point (2,-3), one and one vertex at (4, -3). 3 9. Find the value of x if-1 0 10. Solve the linear system using Cramer's rule a) 2 1 2 4 (6x - 4y = -12 8x - 3y = -2 X = 16 -21 3x + 2y = z = 5 b) x-y+3z = -15 (2x + y +7z = -28 one focus at (3,-3) 11. Find the value of k for which the following system of linear equations has infinite solutions: x + (k+1)y = 5 ((k+1)x + 9y = 8k - 1
Answer:
-72x - 53y + 287 = 0.
Step-by-step explanation:
To find the equation of the image of the circle, we need to reflect each point on the circle in the given line mirror.
The line mirror equation is given as 4x + 7y + 13 = 0.
The reflection of a point (x, y) in the line mirror can be found using the formula:
x' = (x - 2Ay - 2B(Ax + By + C)) / (A^2 + B^2)
y' = (y - 2Bx + 2A(Ax + By + C)) / (A^2 + B^2)
where A, B, and C are the coefficients of the line mirror equation.
For the given line mirror equation 4x + 7y + 13 = 0, we have A = 4, B = 7, and C = 13.
Now, let's find the equations of the image of the circle.
The original circle equation is x² + y² + 16x - 24y + 183 = 0.
Using the reflection formulas, we substitute the values of x and y in the circle equation to find x' and y':
x' = (x - 2Ay - 2B(Ax + By + C)) / (A^2 + B^2)
= (x - 2(4)y - 2(7)(4x + 7y + 13)) / (4^2 + 7^2)
= (x - 8y - 8(4x + 7y + 13)) / 65
= (x - 8y - 32x - 56y - 104) / 65
= (-31x - 64y - 104) / 65
y' = (y - 2Bx + 2A(Ax + By + C)) / (A^2 + B^2)
= (y - 2(7)x + 2(4)(Ax + By + C)) / (4^2 + 7^2)
= (y - 14x + 8(Ax + By + C)) / 65
= (y - 14x + 8(4x + 7y + 13)) / 65
= (57x + 35y + 104) / 65
Therefore, the equation of the image of the circle is:
(-31x - 64y - 104) / 65 + (-57x + 35y + 104) / 65 + 16x - 24y + 183 = 0
Simplifying the equation, we get:
-31x - 64y - 57x + 35y + 16x - 24y + 183 + 104 = 0
-72x - 53y + 287 = 0
So, the equation of the image of the circle is -72x - 53y + 287 = 0.
We buy these products for $50.00 and then sell them for $67.00
Answer:
$17.00
Step-by-step explanation:
The profit=67-50
=$17
A b c or d ...................
Answer:
b
Step-by-step explanation:
The diagram shows a shape made from a solid cube and a solid cylinder.
The cube has sides of length 8.7 cm.
The cylinder has a radius of 2.7 cm and a height of 4.9 cm.
Calculate the total surface area of the solid shape.
Give your answer correct to 3 significant figures.
The total surface area of the solid shape made from the cube and cylinder is approximately 583.31 cm².
How to calculate the areaThe side length of the cube is 8.7 cm, so the surface area of one face is A = 8.7²
= 75.69 cm²
Since there are six faces, the total surface area of the cube is 6 * 75.69 = 454.14 cm²
Since there are two circular bases, the total surface area of the bases is 2 * 22.91 = 45.82 cm².
In this case, the radius of the cylinder is 2.7 cm and the height is 4.9 cm, so the curved surface area is A_curved = 2 * π * 2.7 * 4.9 ≈ 83.35 cm².
Total surface area = surface area of the cube + surface area of the cylinder
Total surface area = 454.14 cm² + 45.82 cm² + 83.35 cm²
Total surface area ≈ 583.31 cm²
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Peter collected 171 marbles but lost 3/4 of them on his way home through of hole in his bag when he arrived at home now many marbles did Peter have left?
The number of marbles Peter had when he arrived home was 43 marbles
What is Percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
Given data ,
The number of marbles Peter had on his way home = 171
The amount of marbles he lost on his way home = ( 3/4 ) th
Now , the amount of marbles Peter have left = 1 - amount of marbles he lost on his way home
The amount of marbles Peter have left = 1 - 3/4
= ( 1 / 4) th
So , The number of marbles Peter had left when he arrived home is =
Amount of marbles Peter have left x Number of marbles Peter had
The number of marbles Peter had left when he arrived home is = (1/4) x 171
= 171 / 4
= 42.75
≈ 43 marbles
Hence , the number of marbles Peter had left when he reached home is 43
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make k the subject of the formula m= √k+1/4
Answer:
∴ \(k = m^{2} - \frac{1}{4}\)
Step-by-step explanation:
\(m=\sqrt{k} + \sqrt {(\frac{1}{4})}\)
\(m^{2} = k+\frac{1}{4}\)
\(k+\frac{1}{4} =m^{2}\)
∴ \(k = m^{2} - \frac{1}{4}\)
what is the area of this parallelogram?
the answers i have are
A=19 and a half ft2
A=42 ft2
A=61 and a half ft2
A=71 and 3 fourths ft2
Answer:
71.75
Step-by-step explanation:
Base x height (hope this helped)
Which graph is a function of x?
Answer:
The first one is a function of x. The graph with a straight line up and down (vertical).
Step-by-step explanation:
5. The circle graph shows last year's ticket
sales with a total of 842 tickets.
4%
17%
55%
24%
Adults
Students
Children Under 12
Seniors
This year 22 more tickets were sold to
seniors. How many senior tickets were
sold this year?
A 36 tickets
B 39 tickets
C 143 tickets
D 165 tickets
The total ticket were sold this year is 39 tickets.
What is arithmetic?
Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.
Given:
The circle graph shows last year's ticket sales with a total of 842 tickets.
Adults =4%
Students =17%
Children Under 12 =55%
Seniors =24%
This year 22 more tickets were sold to seniors.
According to given question we have
Ticket sold to the senior
=24% *842
= 202.08 tickets.
Tickets were sold this year
= 202.08/12 tickets.
=16.84 tickets.
This year 22 more tickets were sold to seniors
=16.84 tickets+22 tickets
=38.84 ≈39 tickets
Therefore, the total ticket were sold this year is 39 tickets.
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A culture started with 2,000 bacteria. After 3
hours, it grew to 2,400 bacteria. Predict how
many bacteria will be present after 18 hours.
Round your answer to the nearest whole
number.
P = Aekt
Answer:
4,000 bacteria
Answer:
The correct answer is 5,972
Step-by-step explanation:
I got it right on the test
Which of the expressions are equivalent to the one below? Check all that
apply.
10x(3+4)
A. (3+4)x10
O B. (10x3) + 4
C. 10.3 + 10 - 4
D. 10. (4+3)
SUBMIT
A fast food hamburger restaurant uses 3,500 lbs. of hamburger each week. The manager of the restaurant wants to ensure that the meat is always fresh i.e. the meat should be no more than two days old on average when used. How much hamburger should be kept in the refrigerator as inventory
Answer:
The peak inventory will be 2 sales days of hamburguers, which is equivalent to 7,000 lbs. As they are consumed in 2 days, the average inventory is 3,500 lbs.
Step-by-step explanation:
If the meat should be no more than two days old on average when used, the stock of hamburguer in the refrigerator has to be at most the equivalent to 2 day of sales.
The "2 days old" represents the inventory turnover.
If we use all the hamburguers in the refrigerator and refill inmediatly, the average inventory is:
\(\bar I=\dfrac{\text{Beginning inventory}+\text{Ending inventory}}{2}\\\\\\\bar I=\dfrac{2*3,500+0}{2}=3,500\)
The peak inventory will be 2 sales days of hamburguers, which is equivalent to 7,000 lbs. As they are consumed in 2 days, the average inventory is 3,500 lbs.
what point is not included in the solution set for the inequality (0,6) (1,5) (2,4) (3,2)
Answer:
(3, 2)
Step-by-step explanation:
To be considered part of a solution set for the inequality provided, a given point must lie within the shaded region that is graphed. Since we want to find the point that is not included in the solution set for the inequality, we need to find the point that does not lie in the shaded region.
Let's test each point to see which doesn't lie in the region. Refer to the image below if you're having trouble graphing the points:
(0, 6): This point lies in the shaded region, so it is not our answer.(1, 5): This point lies in the shaded region, so it is not our answer.(2, 4): This point lies in the shaded region, so it is not our answer.(3, 2): This point does not lie in the shaded region, so it is our answer.Hope this helps!
Plz help I will put you breanliest
Please help me with this proof.
Answer:
See below
Step-by-step explanation:
For the second step, \(\angle T\cong\angle R\) by Alternate Interior Angles. The rest of the steps appear to be correct.
2) Find the area without graphing. A(25, 30), B (-15, 30), C(-15, 22), D(25, 22) What is this shape?
Answer:
The answer to the question is a rectangle.
Step-by-step explanation:
how many solutions does the system have 6x+3y=-12 y=-2x+4
Answer: No solutions
Step-by-step explanation: These equations, when done by substitution, end up not equaling each other.
2x + 8 > -4. 2.find the solution set of x and express the solutions set in number form
The solution set of this inequality is {x| x > -6.1}
How to find the solution set?Here we have the inequality:
2x + 8 > -4.2
To find the solution set, we need to isolate the variable x in one of the sides of the inequality. Doing that we will get:
2x + 8 > -4.2
2x > -4.2 - 8
2x > -12.2
x > -12.2/2
x > -6.1
So the set of all numbers larger than -6.1, this in number form is:
{x| x > -6.1}
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Hatif has $150 in his account. He saves $80 each month. How long will it take before he has $630 in his account?
Answer:
6 months
Step-by-step explanation:
We can set up an equation based on his monthly savings to find out how long it will take for Hatif to reach $630 in his account.
Let's assume it takes Hatif "n" months to reach $630 in his account. Each month, he saves $80.
The equation representing the situation is:
$150 + $80n = $630
Now, let's solve for "n":
$80n = $630 - $150
$80n = $480
n = $480 / $80
n = 6
Therefore, it will take Hatif 6 months to reach $630 in his account.
How do we solve this? Please help?
Answer:
f'(1) = 7/2
Step-by-step explanation:
We are given the function: \(f'(x)=\frac{7}{2\sqrt{x} }\)
To find f'(1), substitute the value for x and evaluate it.
\(f'(1)=\frac{7}{2\sqrt{1} }\\\\f'(1)=\frac{7}{2(1)}\\\\f'(1)=\frac{7}{2}\)
Therefore, f'(1) = 7/2.
Nine busses of students, teachers, and parents went on a field trip. If 5 of the buses held 63 people each and the other buses held 54 people each, how many people went in all?
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The total number of people want in all is 531.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Number of buses = 9
Number of buses that has 63 people = 5
Number of buses that has 54 people = 4
The total number of people in all the buses.
= 5 x 63 + 4 x 54
= 315 + 216
= 531
Thus,
The total number of people want in all is 531.
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Alexander is drawing a map of the Federal Triangle in Washington, D.C. The actual Federal Triangle has a base of 300030003000 feet and height of 120012001200 feet. Alexander needs his drawing to fit on his paper, so he decides to make the base of his triangle 101010 inches.
1. What scale is Alexander using?
2. What is the height of Alexander's triangle in inches?
Alexander is utilizing a scale of 1 inch : 300 feet for his map.
The Alexander's triangle has a height of 4 inches in inches.
How to determine the map's scaleWhen comparing the initial dimensions as used by alexander, the scale of the map may be determined.
The scale is 1 inch: 300 feet since he used 10 inches to symbolize 3000 feet, this is gotten by diving both sides by 10
Using the scale factor 1 inch: 300 feet, the height of 1200 feet would be.
300 feet per inch, then ? inch is 1200 feet
? * 300 = 1200 * 1
? = 1200 / 300
? = 4 inches
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can someone help me figure this out please i’ve been sitting here wondering what this is
Answer:
37 feet
Step-by-step explanation:
9 1/2 × 4 = 37
...........
1. What is the measure
of ZABC?
A
98⁰
B
tc
2.
Answer:
∠ ABC = 49°
Step-by-step explanation:
the chord- tangent angle ABC is half the measure of the intercepted arc AB
∠ ABC = \(\frac{1}{2}\) AB = \(\frac{1}{2}\) × 98° = 49°