Identify the statement that is NOT true for parallelograms: 1. All angles are right angles. 2. Consecutive angles are supplementary. 3. Opposite sides are congruent. 4. Opposite angles are congruent.
Classify the shape: opposite sides are parallel, all sides congruent, vertices not necessarily right angles. Options: Square, Rectangle, Rhombus, Parallelogram.
Consult the figure. To find the length of the span of a oroposed ski lift from A to B, a surveyor measures the angle DAB to be 25∘ and then walks off a distance of L=1000 feet to C and measures the angle ACB to be 15∘. What is the distance from A to B ? The distance from A to B is approtmately □ feet.
(Do not round until the final answer. Then round to two decimal places as needed.)
Points A and B are separated by a lake. To find the distance between them, a surveyor locates a point C on land such than ∠CAB=52.1∘. Find the distance across the lake from A to B. NOTE: The triangle is NOT drawn to scale.
distance ≈□ ft Enter your answer as a number; your answer should be accurate to 2 decimal places.
Eighth grade
2.5 Graph a line using slope
You have prizes to reveall go to yourgame board
Learn with an example
Watch a video (D)
Questions
answered Graph the line that has a slope of 101 and includes the point (0,1).
34 Click to select points on the graph.
\begin{tabular}{|c|c|}
\hline & Time tapsed \\
\hline 00 & 2529 \\
\hline \begin{tabular}{l}
3 m \\
out
\end{tabular} & Martscore of 100 O \\
\hline
\end{tabular}
(0)
Sulmiz
1) Use the figure to answer the question. Choose the correct equation to find the value of a.
m∠MLN=m∠MLKm∠MLN+m∠MLK=90∘m∠MLN=90∘+m∠MLKm∠MLN+m∠MLK=180∘ 2) Use the figure to answer the question. Using the equation from question 1, find the value of a.
a=4.04a=31a=22.04
Two sides and an angle are given below. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.
a=6,b=4,A=70∘ Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.
(Type an integer or decimal rounded to two decimal places as needed.)
8 Divide these identical trapezoids into different sets of figures. Use these figures to find the area of each trapezoid. Show your work.
4×3.5=1421×1.5×3.5=2.4254×3.3=114+2×2.62514+5.25=19.25 Solution: 9.25
(9) Use the results of problem 8. Does the area of a figure depend on how it is separated into smaller figures?
i
0
C. The equation of Line A is y=−31x+4. The graph of Line B is parallel to Line A and passes through the point (3,5). Graph the two lines.
A.
B.
D.
circumference of 12π. 3. Which of the following is a correct equation for the circle shown graphed below?
(1) (x−2)2+(y+3)2=16
(2) (x+2)2+(y−3)2=4
(3) (x−2)2+(y+3)2=4
(4) (x+2)2+(y−3)2=16
3. Which of the following is a correct equation for the circle shown graphed below?
(1) (x−2)2+(y+3)2=16
(2) (x+2)2+(y−3)2=4
(3) (x−2)2+(y+3)2=4
(4) (x+2)2+(y−3)2=16
1. Each point A is mapped to point A′ by a dilation centered at the origin with the given scale factor. Complete the table.
\begin{tabular}{c|c|c}
Coordinates of A & Scale Factor & Coordinates of A′ \\
\hline(−4,−2) & 3 & \\
\hline(6,−4) & 21 & \\
\hline(−5,3) & 4 & \\
\hline
\end{tabular}
Help aidh parcon weach the destination by ploting the points and connecting them.
1) (5,9),(5,7),(6,7),(6,4),(6,1)
2) (2,8),(2,6),(4,6),(4,2),(6,2)
3) (10,3),(8,3),(8,6),(5,6),(5,8)
4) (4,3),(6,3),(6,6),(8,6),(8,7)
POSSIBLE POINTS A diagram demonstrates the Pythagorean Theorem, which states that for a right triangle with legs a and b and hypotenuse c,a2+b2=c2. How are the squares in the diagram related to the equation?
The number of unit squares in each square is equal to the adjacent side length. The square of the sum of the legs equals the square of the hypotenuse.
The square shapes represent the squares of the side lengths, and the sum of the areas of the two smaller squares equals the area of the larger square.
The squares represent the side lengths of the triangle. The sum of the side lengths of the legs equals the length of the hypotenuse.
The square of the sum of the lengths of the sides of the triangle equals the number of unit squares in all the squares.
The right triangle below has legs of length a=10 and b=7.
The hypotenuse has length c. Answer the questions below to find how a,b, and c are related. Part 1: Compute the total combined area of the four triangles:
Part 2: Compute the area of the large (outer) square: □ Part 3: Using your answers in Parts 1 and 2, find the area of the small (inner) square.
c2=□
Part 4: We are given the side lengths a=10 and b=7. Compute a2+b2.
a2+b2=□
3. Select all true statements. Circle A Circle B Circle C
A. Circle A has a circumference of π.
B. Circle B has a circumference of π.
C. Circle B has an area of π.
D. Circle C has an area of π.
3. Kyra has a rectangular vegetable garden that measures 12 feet by 18 feet. She wants to reduce the area of her garden. She closes the fence further in so that the new garden measures 12 feet by 9 feet. How does the area of the new garden compare to the area of the old garden? (Find the area of both the old \& new gardens.)
(a) The new area will be one-half as large.
(b) The new area will be two-thirds as large.
(c) The new area will be one-fourth as large.
(d) The new area will be three-fourths as large. 4. Which of the following is equal to 1211 ?
(a) 0.916
(b) 0.916
(c) 0.916
(d) 1.09
DEFG is a rectangle. DF=5x−3 and EG=x+5. Find the value of x and the length of each diagonal.
HINT: Sketch the rectangle DEFG and draw DF and EG.
Select one:
a. x=1,DF=6,EG=6
b. x=2,DF=7,EG=12
c. x=2,DF=6,EG=6
d. x=2,DF=7,EG=7
2. [4 pts] In the diagram below, △ABC has coordinates A(1,1),B(4,1), and C(4,5). Graph and label △A′′B′′C′′, the image of △ABC after the translation five units to the right and two units up followed by the reflection over the line y=0. [Unit 2, Unit 5]
An observer stands at a point P , one unit away from a track. Two runners start at the point S in the figure and run along the track. One runner runs 2 times as fast as the other. Find the maximum value of the observer's angle of sight θ between the runners. [Hint: Maximize tanθ ]
θ=□ radians
Find the angle θ between the vectors v=2i+k,w=j−3k.
θ=□ degrees Preview My Answers
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Choose ALL answers that describe the polygon DEFG if DE=EF=FG=GD. Answer Attempt 2 out of 3
Parallelogram
Quadrilateral
Rectangle
Rhombus
Square
Trapezoid
Submit Answer
Triangle DEF is formed by connecting the midpoints of the side of triangle ABC. The lengths of the sides of triangle ABC are shown. Find the perimeter of triangle DEF. Figures not necessarily drawn to scale.
Triangle UVW is formed by connecting the midpoints of the side of triangle RST. The lengths of the sides of triangle RST are shown. What is the length of WV ? Figures not necessarily drawn to scale.
Prob. 5 Consider these three diagrams.
(a) The first diagram depicts a point (p1,q1) lying on a circle of radius 1 centered at the point (0,0)− which is to say, the unit circle. What are the coordinates of this point?
(p1,q1)=(
(b) The second diagram depicts a point (p2,q2) lying on a circle of radius 2 centered at the point (0,0). (Effectively, we've made the previous circle twice as big.) What are the coordinates of this point?
(p2,q2)=(
(c) The third diagram depicts a point (p3,q3) lying on a circle of radius 2 centered at the point (−2,1). (Effectively, we've shifted the previous circle 2 units left and 1 unit up.) What are the coordinates of this point?
(p3,q3)=(□,□)
The center of a wind turbine is attached to the top of a 60 m tower and it has four spinning blades that are 40 m long. The turbine makes 40 revolutions (counterclockwise) every minute. We're trying to track the motion of a particular blade. The blade starts at an angle of 4π with the horizontal. Find a function H such that t minutes after the turbine starts turning the tip of this particular blade is at a height of H(t) feet.
H(t)=
C
RM, 15. Point P is on the terminal arm of an angle in standard position in us Quadrant 1. The distance r between P and the origin is given. Determine possible coordinates for P.
a) 29
2 Rajah 2 menunjukkan graf jarak-masa bagi pergerakan dua buah objek dalam tempoh 80 minit. Diagram 2 shows the distance-time graph of the motion of two objects for a period of 80 minutes. Graf EFGH mewakili pergerakan objek A dari titik Y ke titik Z.
Graf LH mewakili pergerakan objek B dari titik X ke titik Z˙.
Graph EFGH represents the motion of object A from point Y to point Z.
Graph LH represents the motion of object B from point X to point Z.
(a) Nyatakan jarak, dalam km, dari titik X ke titik Y. State the distance, in km, from point X to point Y.
[2 markah/marks]
(b) Hitung masa t, dalam minit, apabila dua objek itu bertemu. Calculate the time t, in minutes, when the two objects meet.
[3 markah/marks]
2 Rajah 2 menunjukkan graf jarak-masa bagi pergerakan dua buah objek dalam tempoh 80 minit. Diagram 2 shows the distance-time graph of the motion of two objects for a period of 80 minutes. Graf EFGH mewakili pergerakan objek A dari titik Y ke titik Z.
Graf LH mewakili pergerakan objek B dari titik X ke titik Z˙.
Graph EFGH represents the motion of object A from point Y to point Z.
Graph LH represents the motion of object B from point X to point Z.
(a) Nyatakan jarak, dalam km, dari titik X ke titik Y. State the distance, in km, from point X to point Y.
[2 markah/marks]
(b) Hitung masa t, dalam minit, apabila dua objek itu bertemu. Calculate the time t, in minutes, when the two objects meet.
[3 markah/marks]
Wodurch ist eine Ebene festgelegt? - Auftrag 3
Eine Ebene kann nicht nur durch drei geeignete Punkte festgelegt werden, sondern auch durch zwei Geraden.
a). Begründe: Zwei verschiedene, zueinander parallele Geraden legen eine Ebene fest. Im Folgenden sind zwei Geraden gegeben:
g:x=⎝⎛321⎠⎞+t⋅⎝⎛100⎠⎞h:x=⎝⎛010⎠⎞+s⋅⎝⎛100⎠⎞
b) Diese zwei verschiedenen, parallelen Geraden legen eine Ebene fest. Bestimmen eine Parametergleichung der Ebene.
7. (0-2) Podstawą prostopadłościanu jest kwadrat o boku x, a jego krawędź boczna jest o 2
krótsza od krawędzi podstawy. Wyznacz wielomian V opisujący objętość tego
prostopadłościanu. Określ dziedzinę funkcji.
142-7
Pflichtaufgabe 2: (8 Punkte)
Gegeben sind die Geraden g:g:x=⎝⎛3−33⎠⎞+r⋅⎝⎛30−1⎠⎞ mit r∈R und h:x=⎝⎛3−33⎠⎞+s⋅⎝⎛103⎠⎞ mit s∈R.
(1) Geben Sie die Koordinaten des Schnittpunkts von g und h an und zeigen Sie, dass g und h senkrecht zueinander verlaufen.
(2) Die Ebene E enthält die Geraden g und h. Prüfen Sie, ob der Punkt P(7∣−3∣5) in E liegt.
Problem 3.7. Nora spends part of her summer driving a combine during the wheat harvest. Assume she starts at the indicated posttton heading east at 10ft/sec toward a circular wheat field of radtus 200 ft . The combine cuts a swath 20 feet wide and begins when the corner of the machine labeled "a" is 60 feet north and 60 feet west of the western-most edge of the field.
(a) When does Nora's rig first start cutting the wheat?
(b) When does Nora's rig first start cutting a swath 90 feet wide?
Aufgaben zur Linearen Algebra mit Schwerpunkt auf Schnittpunkten und Lagebeziehungen
1) a) Es wird die Gleichung einer Geraden durch die Punkte A(4;1;3) und B(5;3;5) gesucht.
b) Liegt R(2; 3 ; -1 ) auf der Geraden aus a)?
c) Wo schneidet die Geraden aus a) die x−y-Ebene ( E:z=0 )?
2) Wie ist die Lage der Geraden g und h zueinander?
a)
g:x=⎝⎛123⎠⎞+s⋅⎝⎛112⎠⎞ und h:x=⎝⎛223⎠⎞+t⋅⎝⎛224⎠⎞
b)
g:x=⎝⎛42−1⎠⎞+s⋅⎝⎛21−1⎠⎞ und h:x=⎝⎛001⎠⎞+t⋅⎝⎛−2−11⎠⎞
c)
g:x=⎝⎛14−2⎠⎞+s⋅⎝⎛−114⎠⎞ und h:x=⎝⎛−155⎠⎞+t⋅⎝⎛−1−23⎠⎞
3) Wie muss a gewählt werden, damit sich
ga:x=⎝⎛a14⎠⎞+s⋅⎝⎛315⎠⎞ und h:x=⎝⎛6420⎠⎞+t⋅⎝⎛414⎠⎞
AF III
nittwinkel?
scheiden, wo liegt der Schnittpunkt und wie groß ist der Schnittwinkel?
4) Es soll eine Ebene durch die Punkte P(4;0;0),Q(2;−1;0) und R(1;−2;−1) gelegt werden. Wie lautet eine Gleichung dieser Ebene in Parameterform und wie in Koordinatenform?
5) Gegeben ist die Gleichung der Ebene E:−x+y+2z=4.
a) No schneidet die Ebene die z-Achse? Basisan/g.
b) S(1;1;r) soll in E liegen, wie muss r gewählt werden? Hibue's:
c) Es wird der Schnittpunkt von E mit der Geraden
Enisgehe.
g:x=⎝⎛2103⎠⎞+t⋅⎝⎛−121⎠⎞
gesucht. tedinen.
Question 1 of 20
This quiz: 20 point(s) possible
This question: 1 point(s) possible
Submit q Find the focus and directrix of the parabola with the given equation. Then graph the parabola.
y2=40x The focus is □
(Type an ordered pair.)
The directrix is □
(Type an equation.)
Use the graphing tool to graph the parabola only. Click to enlarge graph
2. Дан треугольник ABC:A(2;3),B(6;−5),C(0;0). Составьте уравнение средней линии MN, где M и N - середины сторон AB и BC соответственно. 3. Для данной системы векторов
For the right triangles below, find the exact values of the side lengths a and d. If necessary, write your responses in simplified radical form.
a=□d=□
12. Amelia's scale drawing of the headboard on her bed is shown below. If 4 inches =2 feet on the real headboard, what is the actual length of the headboard? (Use a proportion to solve)
A. 3.2 feet
B. 3.4 feet
C. 6.4 feet
D. 8.4 feet
rieți rezolvările complete. 1. In triunghiul ABC,AD⊥BC,D∈BC, iar punctele M,N și P sunt mijloacele laturilor AB,AC, respectiv BC. Demonstrați că MNPD este trapez isoscel.
quatriateral below.
Answer Attempt 1 out of 2
90°
pon that most specifically applies to the
90°
23
15
15
90°
23
The quadrilateral is most specifically a
90°
V
because
Instructions: 1. Answer the following questions by solving the required. 2. Show all solutions. 3. Draw a box around your final answers. Format:
Short Bond Paper with 1" Margin (Use specified color)
Submission:
December 5, 2024
RUBRICS
\begin{tabular}{|c|l|}
\hline POINTS & CRITERIA \\
\hline 10 & \begin{tabular}{l}
The student presents correct, complete, neat, and well-organized solutions and \\
answers.
\end{tabular} \\
\hline 6 & The student demonstrates at least 50% of the correct solution. \\
\hline 3 & \begin{tabular}{l}
The student applies the correct methodology and concepts to approach the \\
problem but largely fails to provide a correct solution.
\end{tabular} \\
\hline 0 & \begin{tabular}{l}
The student either fails to provide a solution or applies inappropriate methods and \\
incorrect concepts in attempting to solve the problem.
\end{tabular} \\
\hline
\end{tabular} 1. Solve for the volume of a prism whose base is a trapezoid with upper base 3 times the length of the lower base and an altitude which is 4 times the length of the lower base. 2. Given a right circular cylinder whose volume is a 256π and an altitude of 4 times the radius of the base, find the lateral surface area. 3. A circle with perimeter 8π is rotated to create a sphere. Determine the surface area and volume of the circle. 4. A frustum from a right circular cone has an upper diameter of 5 cm , bottom diameter of 11 cm and an altitude of 4 cm . Determine the lateral surface area and the volume of the frustum.
Solve for the volume of a prism whose base is a trapezoid with upper base 3 times the length of the lower base and an altitude which is 4 times the length of the lower base.