Four points on an ellipse are (9, -2), (-5, -9), (1, 0), and (11, -5). Use matrices to represent the system of equations using the general form and all four points, in the order given. The first point corresponds with the first row, etc. (Note: The A value is 1, so set the equations up to solve for C, D, E, and F.)
Answers
9514 1404 393
Answer:
please open the second attachment
Step-by-step explanation:
The matrix representation of the equations for the coefficients is attached.
Related Questions
Select all of the nets that can be folded and assembled into a triangular prism like this one
Answers
Answer:
the answer is A and D
because i did it
Step-by-step explanation:
I need help i am so confused!!!
Answers
f(0)= 0+6= 6
f(5)= 5+6= 11
[tex]\tt Step-by-step~explanation:[/tex]
To solve for all three equations, we plug in each of the values (-2, 0, 5) into f(x) and x.
[tex]\tt x~as~-2:[/tex]
Equation: f(x) = x + 6. x as -2: f(-2) = -2 + 6
[tex]\tt f(-2)=-2+6\\f(-2)=4[/tex]
[tex]\tt x~as~0:[/tex]
Equation: f(x) = x + 6. x as 0: f(0) = 0 + 6
[tex]\tt f(0)=0+6\\f(0)=6[/tex]
[tex]\tt x ~as~5:[/tex]
Equation: f(x) = x + 6. x as 5: f(5) = 5 + 6
[tex]\tt f(5)=5+6\\f(5)=11[/tex]
[tex]\large\boxed{\tt Our~final~answers:~f(-2)=4,~f(0)=6,~f(5)=11}[/tex]
You hope to have revenue of $4,000 and a gross margin percentage of 40%. What is your dollar gross margin? (Gross margin is revenue less direct product costs.)
Answers
Answer:
$1,600
Step-by-step explanation:
The area of rectangle is 120 m² and its breadth is 8 m. Find the perimeter of the rectangle.
Answers
• Area of rectangle = 120 m²
• Breadth = 8m
To find :• perimeter of the rectangle .
Solution:As we know that ,
• Area of rectangle = L× B
=> 120 = L × 8
=> L = 120/8
=> L = 15
Length of the rectangle is 15m .
Now ,
• perimeter of rectangle = 2 (L+B)
=> perimeter of rectangle = 2 (15+8)
=> perimeter of rectangle = 2 ( 23)
=> perimeter of rectangle = 46
Hence, the perimeter is 46 m .
I hope it will help you.
Regards.
For the summer reading club, Xavier is required to read 2 books every week.
What line represents this requirement?
Line a
Line b
Line c
Line d
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The cost of admission to a popular music was $162 for 12 children and 3 adults. The admission $122 for 8 childern and 3 adults in another music concert. For extra credit (10 pts), how much was the admission for each child and adult? Write the equation
Answers
Answer:
Step-by-step explanation:
let the number of children be x
and the number of adults be y
so
12x+3y=162-----1
and
8x+3y=122------2
equating both 1 and 2 we have
12x+3y=162-----1
8x+3y=122------2
subtract 2 from 1 we have
12x+3y=162-----1
- 8x+3y=122------2
4y+0=40
4y=40
y=40/4
y=10
put y=4 in eqn 1 we have
12x+3y=162-----1
12x+3*10=162-----1
12x+30=162
12x=162-30
12x=132
x=132/12
x=11
therefore a child will cost $11 and adult will cost $10
I have more and will give more points if you answer all of them
Answers
Answer:
Look at my photo to see where to graph this:
Do you see? your going to click - 5 and make it go horizontal
A car salesperson earns 30 percent of the profit for each car sold. If a salesperson earns $300 from the sale of a car, what was the profit?
Answers
Answer:
x=$10000
Step-by-step explanation:
sorry if its wrong lol
$800 = $300 +.05(x), x being the amount that must be sold
Subtract 300 from both sides
$500= .05(x)
Divide by .05
Dede’s class has 60 students and 28 of them are girls. Which represents the ratio of boys to girls in the class?
7:15
8:15
7:8
8:7
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Answer:
the answer would be 7:8 I hope this helps you :\
Step-by-step explanation:
PLZ HELP ME ANSWER ASAP!!!!!!!!!!!
SECOND TIME I SAY THIS, EXPLAIN WHY
Answers
oh my
oof
ya
why?
oops
okay
this looks cool
Juana is making fruit salad. The table shows the numbers of apples and bananas needed for various amounts of fruit salad. How many apples does Juana need to make 5 bowls of fruit salad?
Bowls of fruit salad
2 4 6
Apples needed
12 24 36
Bananas needed
14 28 42
Answers
Answer:
30 apples for 5 fruit bowls
Step-by-step explanation:
if you divide 12/2, you get 6, and six is the rate of how many apples in each bowl, so 6 x 5 is 30.
i raised the points up, please help!! i will mark u as brainliest too!!
Answers
9. Andre is buying snacks for the track and field team. He buys a pounds of apricots
for $6 per pound and b pounds of dried bananas for $4 per pound. He buys a total of
5 pounds of apricots and dried bananas and spends a total of $24.50.
Which system of equations represents the constraints in this situation?
A.
6a + 4b = 5
a+b = 24.50
+
S 6a+ 4b = 24.50
B.
(a + b = 5
C.
6a = 4b
5(a + b) = 24.50
ſ 6a + b = 4
D.
5a + b = 24.50
Answers
Answer:
Option (B)
Step-by-step explanation:
Let the amount of apricots purchased = a pounds
and the amount of bananas purchased = b pounds
Since, Andre purchased total amount of apricots and bananas = 5 pounds
Equation for the total amount will be,
a + b = 5
If the cost of bananas = $4 per pounds and the cost of apricots = $6 per pound
Total amount spent = $24.50
Therefore, equation for the expense will be,
6a + 4b = 24.50
Therefore, Option (B) will be the answer.
Answer:
:)
Step-by-step explanation:
B is correct
( I got it right in class thank you other person who answered)
Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5)?
Answers
-525 and (35)(-15)
Step-by-step explanation:
You can calculate the result of this expression as follows:
(-7)(-15)(-5)=(-1)³(7×15×5)=-(7×15×5)=-525
as, (-1)^n=1 if n is even and (-1)^n=-1 if n is odd.
We already saw that -525 is equivalent to the expression. Furthermore:
(-7)(-15)(-5)=(-15)(-7)(-5)=(-15)(-1)²(7×5)=(-15)(7×5)=(-15)(35).
so the second expression is also equivalent.
You can discard the third and fourth answers because 115×5=575≠525. The first one is also discarded, because (-7)(75)=525≠-525.
The value of equivalent expression are, (- 1)(525) and (35)(- 15).
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Now, We can check all the options as,
(- 7) (-15) (- 5)
= (105)(-5)
= - 525
(–7)(–75) and (–1)(525)
= 525 & - 525
Not Equal
(–1)(525) and (35)(–15)
= -525 and - 525
Both Equal to (- 7) (-15) (- 5)
(35)(–15) and (115)(–5)
= -525 and - 575
Not Equal
(–1)(525) and (115)(–5)
= -525 and - 575
Not Equal
Hence, Expressions (- 1)(525) and (35)(- 15) are equivalent to (- 7) (-15) (- 5).
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
The complete question is this,
Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5)? (Negative 7) (Negative 75) and (Negative 1) (525) (Negative 1) (525) and (35) (Negative 15) (35) (Negative 15) and (115) (negative 5) (Negative 1) (525) and (115) (negative 5)
Can you write a number using 20 digits after the decimal point. Explain your thinking.
Answers
HELP NEEDED ASAP WILL GIVE BRAINLIEST AND 5 STAR RATE
Answers
Answer:
D
Step-by-step explanation:
The reason is because A, B, C start at the origin and move constantly. D does not increase as much.
Can someone tell me how I solve this, like explain how I do the steps not just the answer
Answers
==================================================
Explanation:
Pick any two rows from the table to form (x,y) points
I'll select the first two rows.
(x1,y1) = (-4,-3) from row 1
(x2,y2) = (0,-2) from row 2
Plug those values into the slope formula
m = (y2-y1)/(x2-x1)
m = (-2-(-3))/(0-(-4))
m = (-2+3)/(0+4)
m = 1/4
The slope is 1/4, which is also the rate of change.
plz help asap or im hear my teacher complain
Answers
Answer:
hiiiii ❤
Step-by-step explanation:
Three groups of students used different methods to estimate the diagonal length of a patio in feet. Their results were:Which list shows these diagonal lengths in order from greatest to least?
Answers
Answer:
Greatest to least...
4 to the power of 13, 14 2/5, 14.33
Step-by-step explanation:
I got this correct on my test
WILL GIVE BRAINLIEST TO WHOEVER GIVES BEST ANSWER!!!!
Simplify an expression for the perimeter of the rectangle shown.
( answer choices shown in image )
Answers
Answer: I think 11x + 5 or I think 40x + 15
Step-by-step explanation:
I think it's 40x + 15
helpppp]pppppppppppp
Answers
Answer:
127
Step-by-step explanation:
1+2+4+8+16+32+64
the number of bills given doubles each day.
HELP! ASAP! PLEASE!
PLEASE EXPLAIN AND TRY NOT TO GET IT WRONG. I'M AT 79 AND IF I GET 80 = PASS.
Answers
Answer:
negative
Step-by-step explanation:
a posotive times a negative is a negative
Answer:
positive
Step-by-step explanation:
Based on the number line, we can assume u is -1/2 and v is 2Plug the values of u and v in: [tex]-\frac{-\frac{1}{2} }{2}[/tex] Because there are two negatives, they can cancel out to become a positive: [tex]\frac{\frac{1}{2} }{2}[/tex] [tex]\frac{\frac{1}{2} }{2}[/tex] = 1/2 ÷ 2 = 0.25Because 0.25 is positive, the answer is positiveI hope this helps!
[tex]7+4-5+21-2+4[/tex][tex]7+4-5+21-2+4[/tex]Geometry The volume of a rectangular prism is 208 cm3. If the area of one end is 16 cm2, what is the length of the prism?
Answers
Answer:
thanks for the free points don't do this to other people if you don't want it done to you.
A line passes through points (0, k) and (4,0) and has a slope of –2.5. Which statements are true regarding the graph of the line?
Answers
Answer:
A. The equation of the line is y=−2.5x+10.
C. The y-intercept is k.
F. The value of k is 10.
Step-by-step explanation:
A line passes through points (0, k) and (4,0) and has a slope of –2.5. Which statements are true regarding the graph of the line?
A. The equation of the line is y=−2.5x+10.
B. The equation of the line is y=−2.5x.
C. The y-intercept is k.
D. The y-intercept is 4.
E. The value of k is 4.
F. The value of k is 10.
Solution:
The slope of a line is the ratio of the vertical change to the horizontal change. The slope (m) of a line passing through [tex](x_1,y_1)\ and\ (x_2,y_2)[/tex] is:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Given that the line passes through (0, k) and (4,0)
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]-2.5=\frac{0-k}{4-0}\\\\-2.5=\frac{-k}{4}\\\\k=10[/tex]
The equation of the line is given as:
[tex]y-y_1=m(x-x_1)\\\\y-10=-2.5(x-0)\\\\y = -2.5x+10[/tex]
The y intercept is the value of y when x = 0, hence intercept = k
Given the line that passes through points (0, k) and (4,0) and has a slope of –2.5, we need to get the value of "k
The formula for calculating the slope of a line is expressed as:
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\-2.5 = \frac{0-k}{4-0}\\-2.5=\frac{-k}{4} \\Cross \ multiply\\-2.5 \times 4 = -k\\-10 = -k\\k = 10[/tex]
Hence the value of k is 10.
Learn more here: https://brainly.com/question/12922257
From the coordinate given (0, 10) and (4, 0), we can see that the y intercept and x intercept of the graph is 10 and 4 respectively
Evaluate the expression when a=-2 and b=5.
- 7b+a
Answers
Answer:
Answer
= -7×5-2
= -35-2
=-37
Answer:
i got -37
Step-by-step explanation:
=-7x5+-2
=-35-2
=-37
(⅗) + ( ⅔) =
NEED HELP ANYONE!
Answers
Answer:
19/15
Step-by-step explanation:
Common denominator is 15
Answer:
1 4/15
Step-by-step explanation:
If 5 2 = 10 and 10 = 100,
then 5 2 = 100
what is the property
Answers
Answer:
Multiplication
Step-by-step explanation:
Ik
Rebecca decides that this building will be too small at a scale of 1 cm = 3 m. She changes the plan to be at a 1 cm = 4 m scale. What will be the area of the circular pool when it is constructed at this scale?
Answers
Answer:
A. 78.5m^2
Step-by-step explanation:
To find the area of a circle you have to do:
Area = πr^2
The diameter is 2.5 x 4 which equals 10 and radius is half the diameter, so 5. Now your equation would be:
Area = π5^2
Solve:
π x 5^2
5^2 = 5 x 5 = 25
π x 25
π ≈ 3.14
3.14 x 25 = 78.5
Answer:
π5^2 ≈ 78.5
78.5m^2
12x-6=16+8x solve for x
Answers
Answer:
x =19Step-by-step explanation:
[tex]\frac{x+2}{6}=\frac{2x-10}{8} \\\\Cross\:Multiply\\\\8x+16=12x-60\\\\\mathrm{Subtract\:}16\mathrm{\:from\:both\:sides}\\8x+16-16=12x-60-16\\\\Simplify\\8x=12x-76\\\\\mathrm{Subtract\:}12x\mathrm{\:from\:both\:sides}\\8x-12x=12x-76-12x\\\\Simplify\\-4x=-76\\\\\mathrm{Divide\:both\:sides\:by\:}-4\\\frac{-4x}{-4}=\frac{-76}{-4}\\\\Simplify\\\\x =19[/tex]
What is 5x4+3-2/7 =?
Answers
Answer:
22.7142857143
Step-by-step explanation:
i did it on a calculator
plz give brainliest
Answer:
159/7
Step-by-step explanation:
5 times 4=20
20+3=23
23-2/7
159/7
