Answer:
-13, 0.4,7 its the 4th one
Step-by-step explanation:
Determine if a quadrilateral with the given vertices is an isosceles trapezoid. Show and explain all steps to prove or disprove.
A(-5,0) B(5,0) C(-3, 4) D(3, 4)
By satisfying all the four criteria, the quadrilateral with the vertices A(x, y) = (-5, 0), B(x, y) = (5, 0), C(x, y) = (-3, 4) and D(x, y) = (3, 4) is an isosceles trapezoid.
How to determine if a quadrilateral is an isosceles trapezoidBased on vectorial expressions, an isosceles trapezoid satisfies the following properties:
(i) [tex]\overrightarrow{CD} = k \cdot \overrightarrow{AB}[/tex], for k ∈ [tex]\mathbb{R}[/tex]
(ii) AB ≠ CD
(iii) [tex]\overrightarrow{AC} \neq \overrightarrow {BD}[/tex]
(iv) AC = BD
Now we proceed to prove each property:
Requisite I
(3 - (-3), 4 - 4) = (6, 0)
(5 - (-5), 0 - 0) = (10, 0)
(6, 0) = (5/3) · (10, 0)
Requisite II
AB = 6, CD = 10
AB ≠ CD
Requisite III
[tex]\overrightarrow{AC} = (2, 4)[/tex]
[tex]\overrightarrow{BD} = (-2, 4)[/tex]
[tex]\overrightarrow{AC} \neq \overrightarrow {BD}[/tex]
Requisite IV
[tex]AC = \sqrt{[-3-(-5)]^{2}+(4-0)^{2}}[/tex]
[tex]AC = \sqrt{2^{2}+4^{2}}[/tex]
[tex]AC = 2\sqrt{5}[/tex]
[tex]BD = \sqrt{(3-5)^{2}+(4-0)^{2}}[/tex]
[tex]BD = \sqrt{(-2)^{2}+4^{2}}[/tex]
[tex]BD = 2\sqrt{5}[/tex]
AC = BD
The figure with the entire quadrilateral is shown below. Therefore, the quadrilateral with the vertices A(x, y) = (-5, 0), B(x, y) = (5, 0), C(x, y) = (-3, 4) and D(x, y) = (3, 4) is an isosceles trapezoid.
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i need help pls and thxs
Answer:
Step-by-step explanation:
132 degrees
help me pls and thank you
Answer: it’s 24
Step-by-step explanation: I need brainliest for next rank I’d appreciate it
Answer:
24
Step-by-step explanation:
PLS ANSWER NEEDED IMMEADIATELY< WILL REPORT IF ANY LINKS
Answer:
It is skewed right
Step-by-step explanation:
Answer: looks pretty bell shaped to me
Step-by-step explanation:
Find the angle of depression
from point A to point C.
A
?
58°
6 mi
С
B
Angle of depression = [?]°
Answer:
32
Step-by-step explanation:
I just know that it's the answer
Find the missing side of the triangle
the side x is 15
bottom right angle is 31.61 degrees
other angle is 58.39 degrees
Answer:
Step-by-step explanation:
if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root: a = √(c² - b²)
if leg b is unknown, then. b = √(c² - a²)
for hypotenuse c missing, the formula is. c = √(a² + b²)
what is the equation of the line that passes through the point (8,4) and has a slope of 3/2 ?
Answer:
y = 3/2x - 8
Step-by-step explanation:
y = 3/2x + b
4 = 3/2(8) + b
4 = 12 + b
-8 = b
help me plxx i beg youuuuuuuuuu
Answer:
the range is 53 :)
Step-by-step explanation:
A baseball stadium sells a slushy cup for five dollars and one dollar for every time you how much would you pay in total to drink slushy drinks at this baseball stadium
Answer:
$10
Step-by-step explanation:
This question has missing details.
The given parameters from the complete question is:
[tex]Slushy\ Cup = \$5[/tex]
[tex]Refill = \$1[/tex]
Required
Total amount for 1 cup and 5 refills
Let
[tex]x \to[/tex] Slushy Cup
[tex]y \to[/tex] Refill
So, the expression for the total amount is:
[tex]Total = 5x + y[/tex]
[tex]x =1[/tex] -- 1 cup
[tex]y = 5[/tex] -- 5 refills
So, the total is:
[tex]Total = 5 * 1 + 5[/tex]
[tex]Total = 5 + 5[/tex]
[tex]Total = 10[/tex]
using the 45o −45o −90o Triangle theorem.
Solve this triangle.
Answer:
take 45 degree as reference angle
using sine rule
sin45=p/h
1/[tex]\sqrt{2}[/tex]=[tex]\sqrt{5}[/tex]/m(do cross multiplication)
[tex]\sqrt{2}[/tex]*[tex]\sqrt{5}[/tex]=m
[tex]\sqrt{10}[/tex]=m
Step-by-step explanation:
Find the fare with 15% tip: 4 passengers, 12 miles.
O $21.45
O $22.36
o $23.75
O $24.67
Answer: 24.67 or D
Step-by-step explanation:
i just took the quiz, goodluck <33
Question 5 (1 point) 5 The Cool Shirts company prints personalized designs on T-shirts. The cost y for x shirts with the same design is shown in the table below. y 10 $105 20 $185 30 $265 4:0 $345 Which equation represents the relationship between x and yo! A y = 10x - 55 By = 80x + 105 C y = 8x + 25 D y = 25x + 8 a А B od
Answer:
y = 8x + 25
Step-by-step explanation:
Using the coordinates (10, 105) and (20, 185)
The standard linear equation is expressed as y = mx+c
m is the slope
c is the intercept
m = 185 - 105/20-10
m = 80/10
m = 8
Get the y-intercept
Since y = mx+c
105 = 8(10) + c
105 = 80 + c
c = 105 - 80
c = 25
Get the required equation
Recall that y = mx+c
y = 8x + 25
Hence the required equation is y = 8x + 25
PLEASE HELP MEEEE I NEED THE ANSWER AHH
answer:
0
step by step explanation:
PLEASE ANSWER MY QUESTION
Answer:
A. 3 stores
Step-by-step explanation:
Answer:
Answer is A
Step-by-step explanation:
There are 3 stores farther than 3.5 miles
Solve the inequality
Answer:
n < 7
Step-by-step explanation:
Solve the bracket first (9-18n)
add the n together (-15n)
add the 9 and the -96 together (-105)
Divide 105 and 15n (7)
n < 7
Have a good day :)
two parallel lines are cut by a transversal as shown below
Answer:
<5 and <7= 56 degrees
Step-by-step explanation:
for <5: 180-124=56
<7 is equal to <5
Brainliest Plz?
which number sentence is true? plz help
3 boxes on top
8 boxes on the bottom
2/3 < 6/8
2/3 < 2/8
1/8 > 1/3
3/3 < 3/8
Answer:
True: 2/3 < 6/8Step-by-step explanation:
The rest are incorrect.
which graph can be used to solve the equation 2x-1=x+2
Answer: top right
Step-by-step explanation:
An equation is formed of two equal expressions. The graph can be used to solve the equation 2x-1=x+2 is the Top right one.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
A graph is a way to represent a lot of data in such a visual format that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.
The two of the given equations can be written as,
y = 2ˣ - 1
y = x + 2
If the two equations are now when plotted on the graph, it will be like the one shown below. Hence, the graph can be used to solve the equation 2x-1=x+2 is the Top right one.
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Please help!!! 20 points
Answer:
4) 2xy(x^2-2x-8) 2xy(x-4) (x+2)
5) 3(x^2-9x-10 3(x+1) (x-10)
Step-by-step explanation:
The price of Stock A at 9 A.M. was $13.88. Since then, the price has been increasing at the rate of $0.12 each hour. At noon the price of Stock B was $14.63. It begins to decrease at the rate of $0.08 each hour. If the two rates continue, in how many hours will the prices of the two stocks be the same?
Answer: 9 hours
Step-by-step explanation:
Please help!
Use the quadratic formula to solve 2x^2=5x+6. Leave your answer in radical form. Show all of your work!
Answer:
roots are [(5 - [tex]\sqrt{73}[/tex]) / 4] and [(5 + [tex]\sqrt{73}[/tex]) / 4]
Step-by-step explanation:
[-b ± √b² - (4ac)] ÷2a
2x² - 5x - 6 = 0
a = 2
b = -5
c = -6
[5 ± √5² - 4(2)(-6)] ÷ 2(2)
[5 ± √25 - (-48)] ÷ 4
[5 ± √73] ÷ 4
Simplify the fractions 81/126=
Answer:
9/14
Step-by-step explanation:
81/126=9x9/9x14=9/14
Answer:
9/14
Step-by-step explanation:
I divided both the numerator and denominator by 9 and 9/14 is the "most simplified" it can go to, unless I'm incorrect. Hope this helped ^-^
What is the area surface of a cylinder 11x8
Answer:
400.7 cm^3
Step-by-step explanation:
How do I do this equation to get the x and y some one please help me y=-20x+14 y=-8-44
I am giving 30 points
Answer:
y=-8-44
=-52
y=-20x+14
-52=-20x+14
-20x=-52-14
-20x=-66
x=-66
-20
y=3.3
solve the equation 3(x- 4) = 5
Answer:
Step-by-step explanation:
3(x-4)=5 use distributive property
3x-12=5 add 12 to both sides
3x=17 isolate x by dividing both sides by 3
x=5.66 repeating or 5 2/3
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{3(x- 4) = 5}[/tex]
[tex]\large\textsf{DISTRIBUTE 3 within your parentheses}[/tex]
[tex]\mathsf{3(x) + 3(-4) = 5}[/tex]
[tex]\mathsf{3(x) = \bf 3x}[/tex]
[tex]\mathsf{3(-4)=\bf -12}[/tex]
[tex]\large\text{NEW EQUATION: \textsf{3x - 12 = 5}}[/tex]
[tex]\mathsf{3x - 12 = 5}[/tex]
[tex]\large\textsf{ADD 12 to BOTH SIDES}[/tex]
[tex]\mathsf{3x - 12 + 12 = 5+12}[/tex]
[tex]\large\text{CANCEL out: \textsf{-12 + 12} because that gives you \textsf{0}}[/tex]
[tex]\large\text{KEEP: \textsf{5 + 12} because it helps solve for the \textsf{x value}}[/tex]
[tex]\mathsf{5+12=\bf 17}[/tex]
[tex]\large\text{NEW EQUATION: \textsf{3x = 17}}[/tex]
[tex]\mathsf{3x = 17}[/tex]
[tex]\large\textsf{DIVIDE 3 to BOTH SIDES}[/tex]
[tex]\mathsf{\dfrac{3x}{3}=\dfrac{17}{3}}[/tex]
[tex]\large\text{CANCEL out: }\mathsf{\dfrac{3}{3}}\large\text{ because that gives you the value of \textsf{1}}[/tex]
[tex]\large\text{KEEP: }\mathsf{\dfrac{17}{3}}\large\text{ because it gives you the \textsf{x value}}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: }\mathsf{x = \bf \dfrac{17}{3}}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
PLS HURRRRRRRYYYYY TYYY
Answer:
It's 15.70796. Won't go in-depth since time seems to be of the essence
Step-by-step explanation:
Won't go in-depth since time seems to be of the essence
Which equation could be represented by the number line
Answer:
A
Step-by-step explanation:
I took the test
How do you factor trinomials step by step
Answer:
Step 1: Identify the values for b and c. In this example, b=6 and c=8.
Step 2: Find two numbers that ADD to b and MULTIPLY to c. This step can take a little bit of trial-and-error. ...
Step 3: Use the numbers you picked to write out the factors and check
Step-by-step explanation:
thank me later
Solve each system of linear equations by using substitution method.
x - y = -2
2x + y =5
100 POINTS PLS ANSWER
Answer:
x = 1, y = 3
Step-by-step explanation:
Given:
x - y = -2
2x + y = 5
First, add y on both sides for the first equation.
x = y - 2
Then, plug in x into the second equation.
2(y -2) + y = 5
2y - 4 + y = 5
3y = 9
y = 3.
Next, now that you've found y, plug it into either the first or second equation to solve for x. I'll be using the second equation.
2x + 3 = 5
2x = 2
x = 1.
Ans: x = 1, y = 3
Answer for Brainliest
Answer:
104 in
Step-by-step explanation: