how do i solve 7x^{2} +11y^{2} =40

Answers

Answer 1

Answer:

Step-by-step explanation:

There is no solution as you have two variables and only one equation. The best you can do is solve for one variable as a function of the other.

[tex]7x^2+11y^2=40\\ \\ 11y^2=40-7x^2\\ \\ y^2=\frac{40-7x^2}{11}\\ \\ y=\sqrt{\frac{40-7x^2}{11}}[/tex]


Related Questions

Need help please . also due today

Answers

Answer:

5 units

Step-by-step explanation:

Diameter = two times the radius so the answer is 5 units.

5 units , I think I took this test , 4 days ago

6 in
24 in

I don’t get this at all and I have trouble with math

Answers

What’s the full question?

Justify each step and explain your reasoning.
3(4x+6)=x-4

Answers

Answer:

x = −2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3(4x+6)=x−4

(3)(4x)+(3)(6)=x+−4(Distribute)

12x+18=x+−4

12x+18=x−4

Step 2: Subtract x from both sides.

12x+18−x=x−4−x

11x+18=−4

Step 3: Subtract 18 from both sides.

11x+18−18=−4−18

11x=−22

Step 4: Divide both sides by 11.

[tex]\frac{11x}{11}[/tex] = [tex]\frac{-22}{11}[/tex]

x = −2

what's the value of
[tex] = > 25 \times 386 + 3219 \div 2[/tex]

Answers

Answer:

11259.5

Step-by-step explanation:

25 × 386 + 3219 ÷ 2 = 9650 + 1609.5 = 11259.5

Answer:

11259.5

Step-by-step explanation:

25×386+3219÷2

Multiply 25 and 386 to get 9650.

9650+3219/2

Convert 9650 to fraction 19300/2.

19300/2+3219/2

Since 19300/2 and 3219/2 have the same denominator, add them by adding their numerators.

19300+3219/2

Add 19300 and 3219 to get 22519.

22519/2

Divide 22519 by 2 to get 11259.5.

11259.5

determine which expression are equivalent to the expression -p(q+r+5)

Answers

Answer:5p-+q+r

Step-by-step explanation:

60 points for all the three questions, just please help me

Answers

Answer:

D. Neitherx- intercept: (-13/6, 0), y- intercept: (0, 13)(-1, 3)

Step-by-step explanation:

#1

y = -2x - 5

Substitute pairs of solutions and verify

(1, 7)

7 = -2*1 - 57 = -7Wrong

(2, -7)

-7 = -2*2 - 5-7 = -11Wrong

Correct choice is D. Neither

#2

y = 6x + 13

x- intercept: y = 0

6x + 13 = 06x = -13x = -13/6(-13/6, 0)

y- intercept: x = 0

y = 6*0 + 13y = 13(0, 13)

#3

y - 3 = 2(x + 1)

x = -1 ⇒ find y:

y - 3 = 2(-1 + 1)y = 3(-1, 3)

Answer:

1. The answer is D , neither

Just insert 1&2 in the equation and then get -7 & -9 , which are wrong !

_____________

2. x-intercept : (-13/6 , 0)

y-intercept : (0,13)

_____________

Y=3

Just insert -1 as X in the equation & get the Y .

Step-by-step explanation:

Hope that was helpful .

Good luck .

the circle shown below has chords XY XZ with XY =XZ. The measure of XY is 130 as shown. What is the measure of

Answers

It’s 50
130+130=260
360-260=100
100/2=50

Under his cell phone plan, Jason pays a flat cost of $60.50 per month and $4 per gigabyte. He wants to keep his bill at $68.90 per month. How many gigabytes of data can he use while staying within his budget?

Answers

60.50+4x=68.90

X=2.1
The answer is 2.1 gigabytes

How would you limit the domain to
make this function one to one?
f(x) = (x + 3)^2

Answers

Answer:

Domain would be x -3.

So enter -3.

Step-by-step explanation:

This is a parabola with line of symmetry x = -3.

When x has values like  say -4 and -2,  f(x)  will have a value of 1 making the function many to one.

So,  to make it one to one, x would have to be equal or greater than -3.

A function assigns values. The limit of the domain to make this function one to one is x≥3.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

A one to one function is a function whose every input gives a distinct output. Now given the function is a quadratic function, therefore, the function will have the same output for multiple inputs.

Since the symmetrical axis for this function lies at x=-3, therefore, for the function to be one to one the domain of the function must be greater than or equal to 6.

Hence, the limit of the domain to make this function one to one is x≥3.

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A square has an area of 313.29m2.
Work out the perimeter of the square.

Answers

The perimeter of the square is 70.8 meters.

To find the perimeter of a square, we need to know either the length of one side or the area of the square. In this case, we are given the area of the square as 313.29 m².

The formula for the area of a square is:

Area = side length²

We can rearrange this formula to solve for the side length:

Side length = √Area

Substituting the given area into the formula, we have:

Side length = √313.29 m²

Calculating the square root of 313.29, we find that the side length of the square is approximately 17.7 meters (rounded to one decimal place).

Since a square has four equal sides, the perimeter is simply four times the side length:

Perimeter = 4 * 17.7 m = 70.8 meters

As a result, the square's circumference is 70.8 metres.

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Which statement about an extraneous solution is not correct? Select all that apply.

It comes from correct solution steps and is a valid solution of the equation.

It comes from incorrect solution steps and is a valid solution of the equation

. It comes from correct solution steps and is not a valid solution of the equation.

It comes from incorrect solution steps and is not a valid solution of the equation​

Answers

Answer:

It comes from correct solution steps and is not a valid solution of the equation.

Step-by-step explanation:

The true statement about extraneous solutions is:

(c) It comes from correct solution steps and is not a valid solution of the equation.

An extraneous solution is a solution when put in the original equation does not give the correct value

However, the step to get the solution is true

Hence, the true statement about extraneous solutions is (c)

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Answer Please ⠀⠀⠀⠀⠀⠀⠀⠀

Answers

Answer:

if;3=1.98 what about 2

3-1.98

2-?

2×1.98÷3=$1.32

Ans: 2 cans for $1.32

What is the equation of the line that passes through the point (-3, 6) and has a
slope of -2?

Answers

Answer:

y = -2x

Step-by-step explanation:

i believe its y = -2x

help please???????????????????????​

Answers

Answer:

2. reflexive property

4. transitive property

5. By angle angle side

Hope this helps

ALL THE BEST!!

2. Reflective property

4. Transitive property

5. By angle angle side

Arlo has $25 to spend on a T-shirt and
shorts for gym class. The shorts cost $14.
Use the inequality 14 +1 < 25, where t
represents the cost of the T-shirt. What is
the most Arlo can spend on the T-shirt?

Answers

Arlo has $25 to spend on a T-shirt and

shorts for gym class. The shorts cost $14.

Use the inequality 14 +1 < 25, where t

represents the cost of the T-shirt. What is

the most Arlo can spend on the T-shirt?

the answer is $11.

I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

IF YOU SEND ONE MORE LINK AGAIN I WILL REPORT YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

So what nobody cares about it

PLEASE HELP!! ILL MARK BRAINLYEST!!


The volume of a solid is measured in units cubed.


True or False

Answers

Answer:

The answer is True

How many solutions does this equation have?
7a+ 5(a+3) = 8a +4(a+2)
A. One solution

B. Infinitely many solutions

C. No solutions

Answers

Answer:

C. No Solutions

Step-by-step explanation:

Answer:

C) no solutions

Step-by-step explanation:

7a+5(a+3)=8a+4(a+2)

7a+5a+15=8a+4a+8

12a+15=12a+8

-8           -8

12a+7=12a

No solutions

For numbers 11-16 Find x, y, and z for each. Show all work.

Answers

Answer:

x=74

y=37

z=25

Step-by-step explanation:

First, we can find y.

106 and 2y are supplementary angles. That means that when added together, they equal 180.

106+2y=180

2y=74

y=37

We can use this information to help us find x.

x and 2y are corresponding angles, which means that they are congruent.

2y=x

2(37)=x

74=x

Now, let's find z.

4z+6 is corresponding to the angle right above angle x. This means that (4z+6)+x=180.

Let's solve.

(4z+6)+74=180

4z+80=180

4z=100

z=25

Hope this helped!

Ursula surveyed 50 classmates about their favorite ice cream flavors. Each classmate chose one flavor. The results are shown in the circle graph. Favorite Ice Cream Flavors Coffee 14% Chocolate 42% Strawberry 18% Vanilla How many more of Ursula’s classmates chose chocolate than chose vanilla?

Answers

Answer:

3

Step-by-step explanation:

Answer:

answer would be 3!

Step-by-step explanation:

view the problem, it could be adding or subtracting. your welcome! c:

Round each value to the nearest 10 and find an estimate of the expression:

124 + 38 +71 + 207
A. 410
B. 420
C. 440
D. 450

Answers

Answer:

c

Step-by-step explanation:

we add them which gets 440. afterwards we don't round since it's a profitable and stable amount

Select the correct answer.
To help with staffing decisions, the manager of a large grocery store recorded the total number of customers waiting in line at registers each half
hour over a 12-hour period. The data she collected is shown in the graph.
X Customers in Line by Half Hour
40
36
32
28
.
24
Customers
20
16
12
8
4
11:00
a.m.
0
9:00
1:00 3:00
5:00 7:00 9:00
a.m
p.m. p.m. p.m.
p.m.
p.m.
Time of Day
The manager recognizes that the data approximates a transformation of the parent sine function, y = sin(s).
Which value is closest to the midline of the transformed function?
?
OA
14
OB
20
OC. 24
OD. 17

Answers

Answer:

24

Step-by-step explanation:

correct on plato

Given the function f (x) = x² + 8x + 7, what are the zeros of f?

Answers

Answer:

x = - 7, x = - 1

Step-by-step explanation:

To find the zeros let f(x) = 0 , that is

x² + 8x + 7 = 0

Consider the factors of the constant term (+ 7) which sum to give the coefficient of the x- term (+ 8)

The factors are + 7 and + 1 , since

7 × 1 = + 7 and 7 + 1 = + 8 , then

x² + 8x + 7 = 0

(x + 7)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x + 1 = 0 ⇒ x = - 1

-4y-3+2y

Terms:

Like terms

Coefficients:

Constants:

Pls help!!!

Answers

Coeficiente: -4, -3 constant: 2 terms: -4y, -3, 2y

Someone help Duane scored 55 points in the last basketball game, which is 10 points more than his previous personal best. LeBron scored 15 points more than Chris in the same game. LeBron scored the same number of points as Dwayne‘s previous personal best. Let D represent the number of points Dwayne scored during his previous personal best and C Represent the number of crest points. Question: how many points did Chris score during the game? If these are the only three players who scored, What was the teams totals number of points at the end of the game?

Answers

Answer:

130 points

Step-by-step explanation:

Given

[tex]Scorers: Duane,\ LeBron\ \&\ Chris[/tex]

[tex]D=Dwayne[/tex]

[tex]C = Chris[/tex]

[tex]L = LeBron[/tex]

So, we have:

[tex]L = 15 + C[/tex] --- 15 more than Chris

[tex]L =D -10[/tex] --- Same as Dwayne previous personal best

[tex]D = 55[/tex] -- Dwayne's point

Required

Find the total points

We have:

[tex]L = 15 + C[/tex]

[tex]L =D -10[/tex]

[tex]D = 55[/tex]

Substitute [tex]D = 55[/tex] in [tex]L =D -10[/tex]

[tex]L = 55 - 10[/tex]

[tex]L = 45[/tex]

Substitute [tex]L = 45[/tex] in [tex]L = 15 + C[/tex]

[tex]45 = 15 + C[/tex]

[tex]C =45 -15[/tex]

[tex]C =30[/tex]

So, we have:

[tex]D = 55[/tex]

[tex]L = 45[/tex]

[tex]C =30[/tex]

The total points is calculated as:

[tex]Total = D + L + C[/tex]

[tex]Total = 55 + 45 + 30[/tex]

[tex]Total = 130[/tex]

Simplify a^4b^3×a^2b/a^-5b^-2​

Answers

Answer:

a^11 b^5

Step-by-step explanation:

basically you combine like terms on both sides of the division problem separately

which now becomes a^6b^3/a^-5 b^-2

then you divide which is just subtracting the exponents of like terms

a^(6--5) b^(3--2)

and then solve and you get the answer a^11 b^5

One jar has 13 pennies, a second jar has 7 pennies, a 3rd jar has 10 pennies, and a 4th jar has 30 pennies. On average how many pennies does each
jar have?

Answers

Answer:

60

Step-by-step explanation:

13+7=20  20=10=30  30+30= 60

Hope this helps!

Answer:15

Step-by-step explanation:

One half of one one hundredth is

Answers

Answer:

1/2 of 1/100 = 1/200

Step-by-step explanation:

HELP I WILL MARK YOU GOOD

Answers

Answer:

You have a 2/3 chance

Answer:

2/3

Step-by-step explanation:

when you spin twice you either get a KK, KV, KH, VK, VV, VH, HK, HV, HH.

so the probability of getting a K and a K is 1/3 plus 1/3 to get your answer as 2/3.

Hal's business made 50,0000 last year. This year, his business made 650,000. What is the percentage difference?

Answers

The percentage difference in the amounts made is 30%.

What is the percentage difference?

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

Percentage difference= [ (amount made this year / amount made last year) - 1 ] x 100

'(650,000 / 500,000) - 1] x 100 = 30%

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