The circumcenter of the triangle ABC with vertices A(-2,4), B(-2,-2), C(4,-2) is found by locating the intersection of the perpendicular bisectors of the sides. It is calculated to be the point (1,1).
Explanation:The circumcenter of a triangle is the point where the perpendicular bisectors of the sides intersect. It is equidistant from all three vertices of the triangle. To find the circumcenter of triangle ABC with vertices A(-2,4), B(-2,-2), and C(4,-2), we first find the midpoints of the sides and then the equations of the perpendicular bisectors.
The midpoint of AB is (-2, 1) and the midpoint of BC is (1, -2). The slope of AB is undefined and that of BC is 0. Hence, the slopes of the perpendicular bisectors are 0 and undefined respectively. The equation of the line passing through (-2,1) with slope 0 is y = 1. The equation of the line passing through (1,-2) with undefined slope is x = 1. The intersection of these two lines (circumcenter) is (1,1).
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Item 4 Solve the equation by graphing. ∣x+1∣=∣−x−9∣
Answer:
The solution is (-5,4).
Step-by-step explanation:
We are given the equation, |x+1|=|-x-9|
Now, |x+1| = [tex]\left\{\begin{matrix}x+1 & ,x>0\\ -(x+1)& ,x<0\end{matrix}\right.[/tex]
Also, |-x-9| = [tex]\left\{\begin{matrix}-x-9 & ,x>0\\ -(-x-9)& ,x<0\end{matrix}\right.[/tex]
So, equating these two functions gives the value of x = -5. After substituting this value in any of the function term say y = x+1, we get y = 4.
Moreover, from the graph below we see that, after equating these functions, the solution is given by the points at which they intersect.
Hence, the solution is (x,y) = (-5,4).
can someone help please
Answer:
Step-by-step explanation:
For shirt :
Original cost = $54
New cost = $18
Change amount = 54 - 18 = $36
% INC/DEC = (36 /54) * 100 = 2 * 100 / 3 = 66.66%
For PS4 :
Original cost =$400
New cost = $250
Change in amount = 400- 250 =$150
% INC/DEC = (150/400) * 100 = 37.5%
For Coffee maker:
Original cost = $30
New cost = $20
Change in amount = 30 - 20 = $10
% INC/DEC = (10/30)*100 = 33.33 %
For Luggage:
Original cost = $180
New cost = $50
Change in amount = 180 - 50 = $130
% INC/DEC = (130/180)*100 = 72.22 %
Solve the system of linear equations by graphing. x−y=7, 0.5x+y=5
The system of linear equations x - y = 7 and 0.5x + y = 5 can be solved by first rearranging into y = mx + b form and graphing. Intersecting point of the two lines is the solution. In such equations, y is the dependent variable, relying on x, the independent variable.
Explanation:You've been asked to solve the system of linear equations by graphing. The pair of equations you're given are: x - y = 7, and 0.5x + y = 5. Let's start by expressing these equations in the form y = b + mx.
For x - y = 7, you can rearrange it as y = x - 7 where the slope (m) is 1 and the y-intercept (b) is -7.
For 0.5x + y = 5, you can rearrange it as y = -0.5x + 5 where the slope (m) is -0.5 and the y-intercept (b) is 5.
Now you must graph these two lines on the same graph. Where these two lines intersect, that is the solution of the system of equations.
When graphing these lines, start at the y-intercept (b) and use the slope (m) to find additional points. The slope is a ratio representing the vertical change in y for each unit of horizontal change in x.
Expressing Equations Graphically in this way can help visually solve the system of equations.
Dependence of y on x:
Also note that, in each equation, y is the dependent variable since its value relies on the value of x, the independent variable.
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Help me Find FE if TE=8
Answer:
Sides of FE = 8 units.
Step-by-step explanation:
Median of any triangle is the line segment that joins any vertex of the triangle with the mid-point of its opposite side.
In the given figure, the median from G meets the mid-point of the opposite side FE, at point T.
Since, GT is the median of ΔFGE and it bisects the side FE into two halves where FT=TE
Given: TE = 8 units.
FE = FT + TE
Since, FT = TE
FE = 2 TE = 2(8) = 16 units.
Therefore, the sides of FE = 8 units.
Answer:
16
Step-by-step explanation:
I did it
how much does one hotdog cost if 3 drinks and 2 hot dogs cost 4.80 and if onky 1 drink and 1 hot dog cost 2.00
Determine the positive square root of -36
Answer:
6i
Step-by-step explanation:
[tex]\sqrt{-36} = \sqrt{-1}\sqrt{36}\\= 6i[/tex]
The square root of a negative 1 is I, so you just take out the negative, replace it with I, then solve the square root like normal
[tex]i=\sqrt{-1}\\\\-36=(-1)(36)\\\\\sqrt{-36}=\sqrt{(-1)(36)}=\sqrt{-1}\cdot\sqrt{36}=i\cdot6=6i\\\\Used\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\Answer:\ \boxed{\sqrt{-36}=6i}[/tex]
is. 8.250 greater. than. 8.25
Answer:no
There both the same because just the differnce is the last number which is zero.
Step-by-step explanation:
All you got to do is find the answer and thats all
Plzz mark brainlest and thank me
Answer:
no
Step-by-step explanation:
they are equal
8.250 = 8.25
YaY!!! u got it!!!! =)
During the track meet ryan jumps 13 yards 18 yards and 8 yards find the average distance of ryans lond jumps.
a)13 yards
b)12 yards
c)11 yards
d)19 yards
26 chairs have been split into equal groups,m. How many equal groups are there?
Answer:
5
Step-by-step explanation:
because 5*5=25 and you have 1 remainder
if Alice and Finn roll two number cubes. Which of the following rules will make the game fair?
1Alice wins if a total of 5 is rolled. Finn wins if a total of 9 is rolled.
2Alice wins if a total of 7 is rolled. Finn wins if a total of 8 is rolled.
3Alice wins if a total of 3 is rolled. Finn wins if a total of 10 is rolled.
4Alice wins if a total of 4 is rolled. Finn wins if a total of 11 is rolled.
Answer: Option A is correct.
Step-by-step explanation:
Since we have given that
Number of cubes Alice and Finn roll = 2
Sum of dices has outcome of 7 as the highest probability.
So,when, we move away from the probability gets equal.
Let A: Event of getting a total of 5.
Let B : Event of getting a total of 9.
So, [tex]A=\{(2,3),(3,2),(4,1),(1,4)\}[/tex]
And [tex]B=\{(5,4),(5,4),(6,3),(3,6)\}[/tex]
so, Probability of getting event A and B respectively.
[tex]P(A)=\frac{4}{36}=\frac{1}{9}\\\\and\\\\P(B)=\frac{4}{36}=\frac{1}{9}[/tex]
So, the game will make fair as both have equal possibility to win.
Hence, Option A is correct.
Answer:
Alice wins if a total of 5 is rolled. Finn wins if a total of 9 is rolled.
Step-by-step explanation:
PLEASE HELP I HAVE NO TIME AND I NEED THESE DONE!!!!!
1. 5b + 2 = 17
2. 3/8 n + 1 = -25
3. 9 + 4b = 17
4. 8x + 7 = - 7
5. 4d - 35 = -3
6. 15a - 54 = -9
Question 1. 5b + 2 = 17
Step 1. Subtract 2 from both sides of the equation.
5b+2-2=17-2
Step 2. Then simplify.
5b=15
Step 3. Finally divide by 5.
5b/5=15/5
Answer: b=3
Question 3.
Step 1. Subtract 9 from both sides.
9+4b-9=17-9
Step 2. And simplify.
4b=8
Step 3. Finally divide by 4.
4b/4=8/4
Answer: b=2
Hope this helps! :)
Answer:
With STEP
(1) 5b+2=17 move constant to the right
5b=17-2 subtract the numbers
5b=15 divide both side by 5
b=3
(2) 3/8n+1=-25 multiply both side by8
3n+8=-200 move constant to the right
3n=-200-8 divide both sides by 3
n=-208/3
Without Step just answer
(3) b=2
(4) x=-7/4
(5) d=8
(6) a=3
HOPE this HELP
Use the table above to find the yearly premiums in each of the following cases. Emily Ruth Webster is twenty-seven. She is purchasing twenty-year endowment insurance, with a face value of $25,000. What is her annual premium? 519.50 558.50 1,058.50 1,066.75
Answer:
Emily Ruth's annual premium is $1058.50
Step-by-step explanation:
Emily Ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.
From the given table,
For females, the age of a male 3 years younger should be used.
So, we have to check for 24 year male for 20 year endowment.
It is 42.34 for every $1000 face value.
For a face value of $25000,
it is 25 * 42.34 = $1058.50
∴ Emily Ruth's annual premium is $1058.50
if the regular price is $3.29 and the markdown is 35%, What is the sale price?
Answer:
$2.14
Step-by-step explanation:
First, set up a proportion.
x over 3.29 equals 35 over 100.
You are trying to find what out of 3.29 is 35 percent.
Cross multiply and divide.
3.29 times 35 = 115.15
115.15 divided by 100 = 1.1515
Round to the nearest hundredth because you are dealing with money.
$1.15
Because you are looking for the sale price, you must add or subtract $1,15 from the original amount which is $3.29.
In this case, you must subtract because it is a markdown. You are taking an amount off of the original price.
$3.29 - $1.15 = $2.14
The final price is 2 dollars and 14 cents
Two angles are complementary. The smaller angle is 15° less than the larger angle. Find the measure of each angle.
The number 124 is going to be represented on a stem-and-leaf plot that has the key 3|4 = 34. Which part of the number will be the stem?
12
1
24
4
Answer:
12
Step-by-step explanation:
Note that for the "leaf" or the right side, it is only the one's place value. The left side, or the "stem" contains the tens place as well as anything greater.
124 in a stem-and-leaf plot is seen as: 12 | 4, in which 12 is your stem, and 4 is your leaf.
~
Answer:
12 is the stem
Step-by-step explanation:
The last digit ( or the ones place) is the leaf. Everything else is the stem
So for 124, the ones digit is the leaf. 4 is the leaf
Everything else is the stem 12 is the stem
12|4
The area of Maxine's living room is 88 square feet. The length of the room is 3 feet longer than the width. Which quadratic equation can Maxine use to determine the width, x, of her living room?
Answer:
Correct answer is option (B)
Step-by-step explanation:
We have been given that area of Maxine's living room is 88 square feet. Further, we are given that length of the room is 3 feet longer than the width.
Let us assume that x be the width of the room, therefore, length of the room will be [tex]x+3[/tex].
We know that area of a rectangle can be found by multiply the measures of length and width, therefore, we can set:
[tex]\text{Area} = \text{length}\times \text{width}\\\text{Area} = (x+3)\times x\\\text{Area} = x^{2}+3x\\[/tex]
Now, since we are given that area is 88 square feet, therefore, we can set this expression for area equal to 88 to get the desired equation:
[tex]x^{2}+3x=88[/tex]
Therefore, correct answer is option (B)
a 24 gallon pool is being filled at the rate of 40 gallons per minute at this rate how many minutes will it take to feel this pull up a 450 minutes B 560 minutes C 600 minutes d 150 minutes who ever answer this question get 25 points I really need your help people
Answer:Divide 24,000 by 4 = 6,000 which = 1/4. so 3/4 = 18,000.
1 hour = 60 minutes
40 gallons X 60 minutes = 2,400 gallons per hour.
18,000/2,400 = 7.5 hour to fill 3/4
7.5 hours = 450 minutes.
Answer:
600 min
Step-by-step explanation:
It takes 1 min per 40 gal
Time = 24 000 × 1/40
Time = 600 min
If the velocity of an object changes from 15 m/s to 50 m/s during a time interval of 4 s, what is the acceleration of the object? If the acceleration in problem 4 is constant, what's the average velocity of the object in the previous problem?
The object's average acceleration over the 4s interval would be
[tex]a_{\rm avg}=\dfrac{50\,\frac{\rm m}{\rm s}-15\,\frac{\rm m}{\rm s}}{4\,\rm s}=8.75\,\dfrac{\rm m}{\rm s}[/tex]
Under constant acceleration, the average veclocity of an object with initial velocity [tex]v_i[/tex] and final velocity [tex]v_f[/tex] is
[tex]v_{\rm avg}=\dfrac{v_f+v_i}2[/tex]
so assuming "problem 4" refers to the first question, the average veclocity of the object would be
[tex]v_{\rm avg}=\dfrac{50\,\frac{\rm m}{\rm s}+15\,\frac{\rm m}{\rm s}}2=16.25\,\dfrac{\rm m}{\rm s}[/tex]
The height of a building is proportional to the number of floors. The figure shows the height of a building with 8 floors. h equals 104 ft a. Write the ratio of height of the building to the number of floors. Then, find the unit rate, and explain what it means in this situation.
The ratio of the height of the building to the number of floors is 13 feet/floor, i.e., each floor of the building is approximately 13 feet tall.
Explanation:Given the information that a single building with 8 floors measures 104 feet in height, we can calculate the ratio of the height of the building to the number of floors as follows:
104 feet / 8 floors = 13 feet/floor
This ratio or unit rate represents the height corresponding to one floor. In plain terms, this means each floor of the building is approximately 13 feet tall.
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Answer:
13 feet/floor
Step-by-step explanation:
Lina wants to go on a trip to Venezuela. If the ticket is $1,538 and she has $873, what percent of the money does she already have?
Answer:
Step-by-step explanation:
4 divided 924 long division
To solve 924 ÷ 4, we simply divide 924 by 4. So, 924 divided by 4 equals 231.
When we're dividing one number by another, we're essentially figuring out how many times the divisor (the number you're dividing by) fits into the dividend (the number you're dividing).
In this case, we're dividing 924 by 4. We start by asking ourselves, "How many times does 4 fit into 9?" Since 4 doesn't fit into 9 evenly, we move to the next digit and consider 92. 4 fits into 92 twenty-three times (4 x 23 = 92).
Then, we subtract 92 from 924, which leaves us with 32. Now, we bring down the next digit, which is 4, and we consider how many times 4 fits into 324. 4 fits into 32 eight times (4 x 8 = 32).
So, we've found that 4 fits into 924 exactly 231 times without any remainder. Therefore, 924÷4=231.
Complete Question:
What is 924 divided by 4 ?
please help. 20 points Solve for t.
t + 19 = 45
Enter your answer in the box.
t =
Answer:
t = 26
subtract 19 from the other side you get 26 so t = 26
The answer is 26 i hope thqt helped everyone
For the function f defined by f(x)=x^2+2x+3 find f(−x),−f(x) , and −f(−x).
Also, For the function g defined by g(x)= 55/x +3x find g(−x),−g(x), and −g(−x).
Help!
1. For the function f(x) = x^2 + 2x + 3:
a) f(-x) = x^2 - 2x + 3
b) -f(x) = -x^2 - 2x - 3
c) -f(-x) = -x^2 + 2x - 3
2. For the function g(x) = 55/x + 3x:
a) g(-x) = -55/x - 3x
b) -g(x) = -55/x - 3x
c) -g(-x) = 55/x + 3x
For both functions f and g, we found the values of f(-x), -f(x), -f(-x), g(-x), -g(x), and -g(-x) by substituting -x into the original functions and negating the functions where necessary.
1. For the function f defined by f(x) = x^2 + 2x + 3:
a) To find f(-x), we substitute -x into the function:
f(-x) = (-x)^2 + 2(-x) + 3 = x^2 - 2x + 3
b) To find -f(x), we negate the entire function:
-f(x) = -(x^2 + 2x + 3) = -x^2 - 2x - 3
c) To find -f(-x), we substitute -x into the negated function:
-f(-x) = -((-x)^2 + 2(-x) + 3) = -x^2 + 2x - 3
2. For the function g defined by g(x) = 55/x + 3x:
a) To find g(-x), we substitute -x into the function:
g(-x) = 55/(-x) + 3(-x) = -55/x - 3x
b) To find -g(x), we negate the entire function:
-g(x) = -(55/x + 3x) = -55/x - 3x
c) To find -g(-x), we substitute -x into the negated function:
-g(-x) = -(-(55/(-x)) + 3(-x)) = -(-55/x - 3x) = 55/x + 3x
help please 5 points
Answer:
hint for next time
Step-by-step explanation:
never ask a a and b question for only 5 points
3 % of 8.85 is what?
Answer:
0.2655
Step-by-step explanation:
Multiply 8.85 by 3. Then Divide it by 100.
You will get the dividend of 0.2655.
Answer:
3% of 8.85 = 0.2655
Step-by-step explanation:
3% or 0.03
0.03 x 8.85 = 0.2655
hope this helped if so please mark brainlest
how many times greater is 7 x 10^6 than 4.5 x 10^-1
Let us assume that : 7 × 10⁶ is P times Greater than 4.5 × 10⁻¹
It means when we Multiply P with 4.5 × 10⁻¹, We should get 7 × 10⁶
⇒ (P × 4.5 × 10⁻¹) = 7 × 10⁶
[tex]\mathsf{\implies P = (\dfrac{7 \times 10^6}{4.5 \times 10^-^1})}[/tex]
[tex]\mathsf{\implies P = 1.56 \times 10^7}[/tex]
⇒ 7 × 10⁶ is 1.56 × 10⁷ times Greater than 4.5 × 10⁻¹
PLEASE HELP!!!
Jason is trying to prove that this quadrilateral is a rhombus. Using the slope formula, he finds that opposite sides of the polygon are parallel. Since all of the sides appear to be congruent, Jason concludes that ABCD is a rhombus. Is Jason's reasoning correct? Why or why not?
A) correct; Jason can tell by looking at the graph that all sides are congruent.
B) correct; A rhombus has two pairs of parallel sides which may or may not be congruent.
C) incorrect; Jason must also prove that all sides are congruent by using the distance formula.
D) incorrect; A rhombus does not have two pairs of parallel sides. Jason must prove that all sides are congruent.
Answer: the correct answer is “ incorrect; Jason must also prove that all sides are congruent by using the distance formula.
Step-by-step explanation:
Tell whether x and y show direct variation.Explain your reasoning.If so, find k #3
Answer:
x and y do not show direct variation.
Step-by-step explanation:
The formula for direct variation is
y = kx Divide each side by y
k = y/x
k should have the same value for every point except, of course, (0,0)
For the first point,
k = 2/(-1) = -2
For the third point,
k = 2/1 = 2
The values of k are different, so x and y do not show direct variation.
Answer:x and y do not show direct variation.
Step-by-step explanation:
The formula for direct variation is
y = kx Divide each side by y
k = y/x
k should have the same value for every point except, of course, (0,0)
For the first point,
k = 2/(-1) = -2
For the third point,
k = 2/1 = 2
The values of k are different, so x and y do not show direct variation.
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Step-by-step explanation:
Round answer to the nearest tenth. A hang glider dropped his cell phone from a height of 350 feet. How many seconds did it take for the cell phone to reach the ground?
Answer:
The cell phone took 4.7 seconds to reach the ground.
Step-by-step explanation:
A hang glider dropped his cell phone from a height of 350 feet:
Initial velocity: Vo = 0 ft/s
Height: h = 350 feet = 350 ft
Time to reach the ground: t=?
Gravity's acceleration: g = 32 ft/s^2
h = Vo t + g t^2 / 2
Replacing the known values in the equation above:
350 ft = (0 ft/s) t + (32 ft/s^2) t^2 /2
350 ft = 0 + (16 ft/s^2) t^2
350 ft = (16 ft/s^2) t^2
Solving for t^2: Dividing both sides of the equation by 16 ft/s^2:
(350 ft) / (16 ft/s^2) = (16 ft/s^2) t^2 / (16 ft/s^2)
21.875 s^2 = t^2
Solving for t: Square root both sides of the equation:
sqrt(21.875 s^2) = sqrt(t^2)
4.677071733 s = t
t = 4.677071733 s
Rounding to the nearest tenth:
t = 4.7 s
The cell phone takes about 4.7 seconds to reach the ground
Further explanationAcceleration is rate of change of velocity.
[tex]\large {\boxed {a = \frac{v - u}{t} } }[/tex]
[tex]\large {\boxed {d = \frac{v + u}{2}~t } }[/tex]
a = acceleration ( m/s² )
v = final velocity ( m/s )
u = initial velocity ( m/s )
t = time taken ( s )
d = distance ( m )
Let us now tackle the problem!
Given:
Height = h = 350 feet
Gravitational Acceleration = g = 32.2 feet/s²
Initial Velocity = u = 0 m/s
Unknown:
time taken to reach the ground = t = ?
Solution:
This problem is about Free Fall.
When an object experiences free fall, the acceleration experienced by the object is the same as the acceleration due to gravity which is equal to 9.8 m/s² or 32.2 feet/s²
[tex]h = ut + \frac{1}{2}gt^2[/tex]
[tex]350 = 0t + \frac{1}{2}(32.2)t^2[/tex]
[tex]350 = 0 + 16.1t^2[/tex]
[tex]t^2 = 350 \div 16.1[/tex]
[tex]t \approx 4.7 ~ \text{seconds}[/tex]
Learn moreVelocity of Runner : https://brainly.com/question/3813437Kinetic Energy : https://brainly.com/question/692781Acceleration : https://brainly.com/question/2283922The Speed of Car : https://brainly.com/question/568302Answer detailsGrade: High School
Subject: Physics
Chapter: Kinematics
Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle
help needed please!!!!!!
Answer:
EC = 5
GC = 7
Step-by-step explanation:
A bisector divides a segment into two equal parts. Since BE is 5 and BE = EC, EC is also 5.
All the perpendicular bisectors meet at point G. Therefore all the segments going from any vertex to point G are congruent. Since BG is 7, GC then will be 7 aswell. Hope this helped!