Which system is equivalent to StartLayout Enlarged left-brace 1st Row 5 x squared + 6 y squared = 50 2nd row 7 x squared + 2 y squared = 10 EndLayout?
Answers
Answer:
The answer is D, or the bottom one.
[tex]\left \{ {{5x^2+6y^2=50} \atop {7x^+2y^2=10}} \right.[/tex] is equivalent to [tex]\left \{ {{35x^2+42y^2 = 350} \atop {-35x^2-10y^2=-50}} \right.[/tex].
An equivalent relation of [tex]\left \{ {{5x^2+6y^2=50} \atop {7x^+2y^2=10}} \right.[/tex] is to determine.
Relation between two values is defined as the how the value associate with others.
Here,
⇒ [tex]\left \{ {{5x^2+6y^2=50} \atop {7x^+2y^2=10}} \right.[/tex]
⇒ multiply by 7 in first equation and by -5 in second equation.
⇒ [tex]\left \{ {{35x^2+42y^2 = 350} \atop {-35x^2-10y^2=-50}} \right.[/tex]
Thus, [tex]\left \{ {{5x^2+6y^2=50} \atop {7x^+2y^2=10}} \right.[/tex] is equivalent to [tex]\left \{ {{35x^2+42y^2 = 350} \atop {-35x^2-10y^2=-50}} \right.[/tex].
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Related Questions
Can Someone plz help me i will mark brainliest
Answers
Answer:
a
Step-by-step explanation:
if u multiply by -5 the 5s will cancel out
Answer:
c
Step-by-step explanation:
sorry if it wrong
Help me to do this problem System by sustitution.
4) y = -3x - 7
-6x - 2y = 14
Answers
Answer:
The system of equations has infinite solutions
Step-by-step explanation:
∵ y = -3x - 7 ⇒ (1)
∵ -6x - 2y = 14 ⇒ (2)
→ Substitute y in equation (2) by equation (1)
∴ -6x - 2(-3x - 7) = 14
→ Simplify the left side
∵ -6x - 2(-3x) - 2(-7) = 14
∴ -6x + 6x + 14 = 14
→ Add the like terms in the left side
∵ (-6x + 6x) + 14 = 14
∴ 0 + 14 = 14
∴ 14 = 14
∵ The variable is disappeared and the two sides of the equation equal
∴ The equation has many solutions
→ That means x and y can be any numbers
∴ The system of equations has infinite solutions
How can i prove this? Please someone help i get 100points
Answers
Typing.................
Answer:
I can look it up, what's this calle?
Step-by-step explanation:
I need help with this math problem please! At a basketball game, 55% of people attending were supporting the home team, while 45% were supporting the visiting team. If the total number of people attending the game was 520, how many people attending were supporters of the home team?
Answers
Answer: 500
Step-by-step explanation: 275/55%=275/0.55=500
PLEASE HELP!! An alien blob started with a mass of 4 kg and is doubling in size every day. How large will the blob be after 2 weeks?
Answers
Answer:
56
Step-by-step explanation:
whats is x2 - x - 12 = 0
Answers
Answer:
x = -3 or x = 4
Step-by-step explanation:
[tex]x^2-x-12=0[/tex]
[tex](x+3)(x-4)=0[/tex]
[tex]x + 3 = 0[/tex]
[tex]x = -3[/tex]
[tex]x - 4 = 0[/tex]
[tex]x = 4[/tex]
Answer:
x=-3 or x=4
Step-by-step explanation:
x2−x−12=0
Step 1: Factor left side of equation.
(x+3)(x−4)=0
Step 2: Set factors equal to 0.
x+3=0 or x−4=0
x=−3 or x=4
.In the coordinate x,y the point x is calledorigin
abscissa
line
y-axis
Answers
Answer:
The x coordinate is known as abscissa (B)Step-by-step Explanation:
In a Cartesian plane, we learn many such terms which represent a point, or a line, or cooridnates of some points etc[tex].[/tex]
Such terms are:
Origin (Intersection of x axis and y-axis.)x - axis (Horizontal line)y - axis (Vertical line)abscisaa (x -coordinate)ordinate (y - coordinate)Chuck needs to drive 400 miles on the highway.
Gas costs $1.50 per gallon. How much will it cost for
gas to drive his truck 400 miles?
Answers
Answer:
$600
Step-by-step explanation:
400*1.5=600
Help will give star and brainlest or what ever is the highest you can give a comment!!!
Answers
Answer:
puppies - 22
Step-by-step explanation:
since the ratio is 2:3, there are 5 parts in total. (2+3=5)
55/5=11 then multiply by parts
puppies- 2×11=22
adults- 3×11=33
check answer by adding- 22+33=55
Answer:
22 puppies and 33 adult dogs
Step-by-step explanation:
Total: 55 Dogs
Ratio: 2:3
Puppies : Adults
2 : 3 (1)
20 : 30 (10)
22 : 33 (11)
Answer = 22 puppies
if you help me with this , you're a life saver
Answers
Step-by-step explanation:
sin0° = cos90°
sin30° = cos60°
sin45° = cos45°
sin60° = cos30°
sin90° = cos0°
Write an equation of the parabola in vertex from y=a(x-h)^2 +k that passes through (-7,-15) and has vertex (-5,9).
Answers
Answer:
Step-by-step explanation:
We have the work form of the equation, and we also have values for x, y, h, and k. All we need to do is fill those in and solve for a:
[tex]-15=a(-7-(-5))^2+9[/tex]
Let's clean that up a bit.
[tex]-15=a(-2)^2+9[/tex] and
-15 = 4a + 9 and
-24 = 4a so
a = -6
Now we'll fill in the a value along with the h and k to get
[tex]y=-6(x+5)^2+9[/tex] which is choice C
PART A: Which statement below is true?
1. A = H
2. I = C
3. B = G
4. I = A
PART B: Which statement below is true?
1. AC = IH
2. BC = HI
3. GH = BC
4. IG = CB
Answers
Answer:
Part A is I = C
&
Part B is BC = HI
Find the value of X. Help please
Answers
Answer:
x=5√2 units
Step-by-step explanation:
cos(45°)=x/7+3
cos(45°)=x/10
x=10cos(45°)
x=5√2 units
solve for the variable.
3(2x-4)+6=30
x=___
Answers
Answer:
x = 6
Step-by-step explanation:
Use distributive property: a(b + c) = a*b + a*c
3(2x - 4) + 6= 30
3*2x - 3*4 + 6 = 30
6x - 12 + 6 = 30
6x - 6 = 30
6x = 30+ 6
6x = 36
x = 36/6
x = 6
Answer:
x = 6
Step-by-step explanation:
Simplify 3(2x-4) first: 3 (2x) 3(-4) =
6x - 12+6 = 30
Combine like terms: -12 + 6 = -6
6x - 6 = 30
Add 6 to both sides: 6x = 36
Divide both sides by 6: x = 6
CHECK:
3( 2(6) - 4) +6 = 30
3 (12-4) +6 = 30
3(8) +6 = 30
24+ 6 = 30
30 = 30
Is point (9,7) on line J explain why or why not
Answers
Answer:
you need to add the image
Step-by-step explanation:
How do I graph this? Domain: 1 Range: 2
Answers
Answer:
You graph them by using the domain as x and the range y.
Step-by-step explanation:
please help!! i’ll mark brainliest!!!!
Answers
Answer:
x^2+11x+30
Step-by-step explanation:
what is the answer to 26= 8 + v
Answers
Explanation: if 26 is equal to 8 + v, then you’d have to subtract 8 from 26 to get v. I know this because then when you add 18 (v) and 8 together, you’ll get an equal if 26.
The graph shows the parent function f(x)=0.75x.
Answers
answer:
it should be the graph on the top right!
The graph of the parent function f(x) = 0.75ˣ + 1 is shown in figure.
What is Function?A relation between a set of inputs having one output each is called a function.
Given that;
The parent function is,
⇒ f(x) = 0.75ˣ + 1
Now,
Since, The parent function is,
⇒ f(x) = 0.75ˣ + 1
Hence, The points on the function are (0, 2) and (1, 1.75).
Thus, The graph of the parent function is given in option 2.
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the sum of two numbers is 183 and the difference is 88 . find the two numbers serve by carmmers rule
Answers
Answer:
135.5 and 47.5
Step-by-step explanation:
135.5+47.5=183
135.5-47.5=88
how many lines of symetry do a heart have
Answers
Answer:
1
Step-by-step explanation:
You can only cut it in half (vertically)
y=2x−1
5x−4y=1
Is (1,1) a solution of system
A.Yes
B.No
Answers
Jada has 60% of her goal of $70 saved for her trip.
If 10% x 6 = 60%, how much money does Jada have saved?
Answers
Answer:
60% of $70 is $42, so i think its $42
Answer:
Jada has saved $36
Step-by-step explanation:
60% of $60 is the question
0.6 × $60 is $36
Variable on both sides
John will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $57.96 and costs an additional $0.12 per mile driven.
The second plan has an initial fee of $47.96 and costs an additional $0.16 per mile driven. How many miles would John need to drive for the two plans to cost
the same?
II miles
Х
?
Answers
So for starts we can go 0.16 x 63 miles = 10.04 so the total for the second plan would be $58 with driving 63 miles. and for the first plan would be 0.12 divided by 3 would be 0.04 so we add them together and we get $58 with driving a 3rd of a mile.
Overall:
1st plan: $58 with driving a 3rd of a mile.
2nd plan: $58 with driving 63 miles.
Wyatt bought 12 souvenirs during 3 days of vacation. How many days will Wyatt have to spend on vacation before he will have bought a total of 20 souvenirs? Solve using unit rates
Answers
Answer: 5 days
Step-by-step explanation:
12/3=4 souvenirs a day
20/4=5 days
Answer:
Assuming Wyatt buys the same number of souvenirs per day (4), it will take him 5 days to buy 20.
Step-by-step explanation:
12/3 = 4 souvenirs/days
20/4 = 5 days
Camilla and Anne work as interior decorators in the city. Camilla can decorate a home in 5 days while Anne can
complete a home in 4 days. Working together, how long will it take them to decorate 2 homes?
Answers
Answer:
It will take them 4.44 days to decorate 2 homes.
Step-by-step explanation:
Given that:
Camilla can decorate a home in 5 days
Anne can complete a home in 4 days
Let,
x be the time taken by Camilla and Anne to decorate 1 home.
[tex]\frac{1}{Camilla's time}+\frac{1}{Anne's\ time} = \frac{1}{total\ time}\\[/tex]
[tex]\frac{1}{5}+\frac{1}{4}=\frac{1}{x}[/tex]
Taking LCM;
[tex]\frac{4+5}{20}=\frac{1}{x}\\\\\frac{9}{20}=\frac{1}{x}\\x=\frac{20}{9}[/tex]
Time taken by Camilla and Anne to decorate 2 homes = [tex]\frac{20}{9}*2=\frac{40}{9}[/tex]
Time taken to decorate Camilla and Anne 2 homes = 4.44 days
Hence,
It will take them 4.44 days to decorate 2 homes.
For which value of a are the graphs of 4 = 3x + 6y and ax – 8y = 12 parallel?
a = -4
O a =
= - 1 / 1
a = 1/2
O
a = 2
Answers
Answer: a=-4
Step-by-step explanation:
How many triangles in a 15 sides polygon ?
Answers
Sorry if that’s wrong I truly tried!!! Please mark brandies the if correct though
Simplify the below question.
Please send the answer with correct explanation.
Answers
Answer:
48t^4
Step-by-step explanation:
First you simplify and cross out all the uneeded characters because this is a division equation
Then whatever is left you calculate it
Answer:
[tex]48t^{4}[/tex]
Step-by-step explanation:
[tex]\frac{3^{3}*8t^{3}*32}{9t^{-2}*16t}=\frac{3^{3}*8*32*t^{3}}{9*16*t^{-2+1}}\\\\=\frac{3*1*32*t^{3}}{1*2*t^{-1}}\\\\= \frac{3*16*t^{3}}{t^{-1}}\\\\= 48t^{3}*t^{1}\\\\= 48*t^{3+1}\\\\=48t^{4}[/tex]
HINT:
[tex]a^{m}*a^{n}=a^{m+n}\\\\\\\frac{1}{a^{-m}}=a^{m}[/tex]
1. Simplify: 2√50 × 3√32 × 4√18
Answers
=2(5√2) × 3(4√2)× 4(3√2)
=2(5)(2)(3)(4)(4)(3√2)
=2880√2
Answer:
Answer is 4072.93506 and there's full explanation.