If x= 4 when y= 7. what is x when y=28?​

Answer: a and c

Step-by-step explanation:

Answer: Answers below

Step-by-step explanation:

1. $15.64

2. 5370.28 Yen

3. 13425.70 Yen

4. $100

5. 67128.51 Yen

6.$782.08

Answer: 1: 15 2: 5370 3:13400 4: 160 5: 67100 6: 780

Step-by-step explanation: These are rounded to the nearest 100th

The quadratic equation with zeros at -6 and 2 is y² + 4y - 12 = 0. This is in standard form, which is ax² + bx + c = 0, with a = 1, b = 4, and c = -12.

To find the quadratic equation with zeros at -6 and 2, we can start by using the fact that if a quadratic equation has roots x₁ and x₂, then it can be written in the form

(y - x₁)(y - x₂) = 0

where y is the variable in the quadratic equation.

Substituting the given values of the zeros, we get

(y - (-6))(y - 2) = 0

Simplifying this expression, we get

(y + 6)(y - 2) = 0

Expanding this expression, we get

y² - 2y + 6y - 12 = 0

Simplifying this expression further, we get

y² + 4y - 12 = 0

So the quadratic equation with zeros at -6 and 2 is

y² + 4y - 12 = 0

This is the standard form of a quadratic equation, which is

ax² + bx + c = 0

where a, b, and c are constants. In this case, a = 1, b = 4, and c = -12.

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The correct option regarding the solution of the compound inequality is given as follows:

No solution.

The inequality for this problem is defined as follows:

−1≤2−j<−5

Hence the first condition is of:

j - 2 ≤ 1

j ≤ 3.

The second condition is of:

2−j<−5

j < -7

j > 7.

We have an and operation, meaning that the two conditions must be satisfied simultaneously.

A number cannot be simultaneously less or equal to 3 and greater than 7, hence the compound inequality has no solution.

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Answer:

the answer is B. $1.20 and this has to be 20 characters so I'll type till I'm there.

Answer:

3x-20

Step-by-step explanation:

I had this test yesterday and this was the correct answer

The equation  D. y = 20 - 3x Megan use to find the amount of change.

An equation is is a tool that expresses two equality of two given expressions.

According to the given question Megan bought 3 pounds of apples that cost x dollars per pound. She gave the cashier a 20-dollar bill.

Let y denotes the change she received.

If 1 pound of apple cost x dollars then 3 pounds of apples will cos 3×x = 3x dollars.

∴ y = 20 - 3x.

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Answer:

Money made by tickets=

2753 x $5 = $13765

We have to subtract the cost of the concert from the money made by tickets to get our profit. Therefore,

$13765 - $8000 = $5765

We will get that the angle theta is:

θ = β/2

Remember that the sum of the interior angles of any triangle must be equal to 180°.

Now, looking at the triangle in the left, we can see that the top angle is equal to:

180 - 2α

The right angle is equal to:

180 - 2β

And the left angle is α

Then we can write:

α + (180 - 2α) + (180 - 2β) = 180

-α - 2β = -180

α = 180 - 2β

Now we can go to the other triangle, where theta is, and write:

α + β + 2θ = 180

Replacing what we found above, we get:

180 - 2β + β + 2θ = 180

-β + 2θ = 0

θ = β/2

That is the best simplification we can get with the given diagram.

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Answer:

Step-by-step explanation:

To calculate the number of Democrats and Republicans who voted for the Clean Water bill, we need to use the information provided in the question.

First, we can calculate the number of Democrats who voted for the bill by multiplying the total number of Democrats by the percentage who voted for it:

46% of 205 Democrats = 0.46 x 205 = 94.3 Democrats (rounded to the nearest tenth)

Therefore, approximately 94 Democrats voted for the Clean Water bill.

Next, we can calculate the number of Republicans who voted for the bill by multiplying the total number of Republicans by the percentage who voted for it:

48% of 230 Republicans = 0.48 x 230 = 110.4 Republicans (rounded to the nearest tenth)

Therefore, approximately 110 Republicans voted for the Clean Water bill.

Note that these are approximations since we rounded to the nearest tenth.

Answer:

i believe that the answer is G

Step-by-step explanation:

hope this helps <3

Answer:

7x + 13

Step-by-step explanation:

because the correct answer is 7x+13

The moral of the story of Jim and Della is Love.

The story named "The gift of Magi" is written by O Henry. And told the story of two newlywed young couple called Della and Jim. Here the author characterize the couple as poor one.

And at the time of time of Christmas, both of them are thought to brought a present for each other to show the love towards each other. But at that time both does not have enough money that's why they sold their own precious possession for their loved one.

But that will fall the situation that Della and Jim realize that the gifts they purchased for each other cannot be used.

The female lead Della bought Jim a chain for his watch that is sold to buy her hair combs. Where she sold her hair in order to buy Jim's watch chain.

But in the end the narrator explains that their gifts are the best gifts because they show how much they love each other.

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The EMS induce a transition type of mutation. Thus, option a. is correct.

EMS stands fοr Emergency Medical Services. It refers tο a system that prοvides emergency medical care and transpοrtatiοn tο individuals whο are in need οf immediate medical attentiοn. EMS typically invοlves a cοοrdinated effοrt amοng variοus healthcare prοfessiοnals, including emergency medical technicians (EMTs), paramedics, and emergency physicians.

EMS plays a critical rοle in respοnding tο medical emergencies, accidents, and οther urgent situatiοns. The primary gοals οf EMS are tο assess and stabilize patients, prοvide necessary medical treatment οn-site οr during transpοrtatiοn, and ensure prοmpt delivery tο an apprοpriate healthcare facility fοr further care.

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Step-by-step explanation:

angle Q will be 34° as the triangle is isosceles triangle.

Step-by-step explanation:

52 + 14 < 3x

66 < 3x

66/3 < x

22 < x

Answer:

x > 22

Step-by-step explanation:

52- 3x<-14

-3x < -14 -52

-3x < -66

x > 22

I'm pretty sure its 2r, because you are multiplying the number of red marbles by 2 to get how many blue marbles there are.

The answer  is that there are 165 ways to distribute eight identical bottles of water to three friends.

We can use the formula for distributing identical objects to distinct groups, which is (n+r-1) choose (r-1), where n is the number of objects and r is the number of groups. In this case, n=8 and r=3.

So the formula becomes (8+3-1) choose (3-1), which simplifies to 10 choose 2. Using the combination formula, 10 choose 2 equals 45. However, this only accounts for cases where all three friends receive at least one bottle of water.

To account for cases where some friends may receive no water, we need to add the number of ways where two friends receive water and one friend receives no water, and the number of ways where one friend receives water and two friends receive no water.

There are three ways to choose which friend receives no water, and then we need to distribute the remaining eight bottles of water among the remaining two friends. Using the formula from earlier, this gives us (8+2-1) choose (2-1) = 9.

So for the case where two friends receive water and one friend receives no water, there are 3 * 9 = 27 ways. Similarly, for the case where one friend receives water and two friends receive no water, there are 3 * 9 = 27 ways.

Adding these cases to the initial case where all three friends receive at least one bottle of water, we get a total of 45 + 27 + 27 = 99 ways. However, we still need to account for cases where all eight bottles of water go to a single friend, which is just 3 ways.

So the final answer is 99 + 3 = 102 ways to distribute eight identical bottles of water to three friends, where some friends may receive no water.

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Answer:

A

Step-by-step explanation:

I think

what are the prices?

Answer:

pretty sure it's A. (4, -4)

The shape of the graph changes qualitatively at k = ± 2 and

\(k=\sqrt{(2)\).

The given function is f(x,y) = y-x²+y²+kxy.

The critical points of the function are found by taking the partial derivatives and equating them to zero:

∂f/∂x = -2x + ky = 0

y = 2x/k

∂f/∂y = 2y + kx = 0

y = -kx/2

Substituting y from the first equation into the second equation gives

x = k²x/4, so k² = 4 and k = ± 2.

Therefore, the critical points are (0,0), (2,4), and (-2,4)

We will now examine the critical points to see when the shape of the graph changes qualitatively.

There are two cases to consider:

Case 1: (0,0)At (0,0), the Hessian matrix is

H = [∂²f/∂x² ∂²f/∂x∂y;∂²f/∂y∂x ∂²f/∂y²]

=[ -2 0;0 2].

The determinant of the Hessian matrix is -4, which is negative.

Therefore, (0,0) is a saddle point and the graph changes qualitatively as k increases for all values of k.

Case 2: (±2,4)At (2,4) and (-2,4), the Hessian matrix is

H = [∂²f/∂x² ∂²f/∂x∂y;∂²f/∂y∂x ∂²f/∂y²]

=[ -2k 2k;2k 2].

The determinant of the Hessian matrix is 4k²+8, which is positive when k is greater than √(2).

Therefore, the critical points (2,4) and (-2,4) are local minima when

k > √(2).

Thus, the shape of the graph changes qualitatively at k = ± 2 and

k = √(2).

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1. The values which the given number sentences true are:

a) 11 b) 5 c) 36

2. After substituting the value of  x we get the value for y as :

a) 6 b) 0 c) 7 d) 15

3. The number sentences are :

a) x ₋ y = 25

b) 5 × p = q ÷ 2

c) 2y ₋ 14 = 6

d) 15 × 4 = 4 ₋ (x₊y)

Given in the first bit we need to find the variables:

a) h ₊ 8 = 19

arrange the constants on one side.

h = 19 ₋ 8

h = 11

b) 2p ₋ 6 = 4

arrange the constants on one side.

2p = 4 ₊ 6

2p = 10

p = 10/2

p = 5

c) 1/3 y = 12

cross multiply.

y = 36

Now in the second exercise we are asked to substitute the x value and get the value of y.

a) y = 3x ₊ 2 if x =8

substitute x value in the equation.

y = 3(8) ₊ 2

y = 24 ₊ 2

y = 26

b) y = 4x ₋ 1 if  x = 1/4

y = 4(1/4) ₋ 1

y = 1 ₋ 1

y = 0

c) y = 0.2x ₊ 5 if x = 10

y = 0.2(10) ₊ 5

y = 2 ₊ 5

y = 7

d) y = 10x ₊ 12 if x = 0.3

y = 10(0.3) ₊ 12

y = 3 ₊ 12

y = 15

In the last third bit we need to frame equations for the given word problems.

a) The difference between two numbers is 25.

let the two numbers be x and y.

x ₋ y = 25.

b) The product of 5 and p is equal to quotient of q and 2.

5 × p = q ÷ 2

c) The difference between 14 and 2y is equal to 6.

2y ₋ 14 = 6

d) The product of 15 and 4 is equal to four less than the sum of x and y.

15 × 4 = 4 ₋ (x₊y)

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Answer:

J = 7.5

Step-by-step explanation:

* This is going off of the estimate that the = sign means the equation is = to 0, as there is no value after the equal sign. *

First, start off by adding all of the like numbers.

11 + (-3) + 7 = 8 + 7 = 15

- 1/8 j - 3/8 j  = - 4/8 j.

Combining those two sums, we get:

15 - 4/8 j = 0

Subtract 15 from both sides,

-4/8 j = -15

Simplify -4/8 to -1/2, and then to -0.5

-0.5j = -15

Divide.

-15/-0.5 = 7.5

When you divide a negative number by another negative number, you get a positive. Therefore, the answer is J = 7.5

If the number after the = sign IS NOT 0, then when you get to 15 - 0.5j, just do the steps but with a number that isn't 0.

Given that,

∠C = (6x-21)° and ∠A = (4x+11)°

To find,

Choose the correct option.

Solution,

For a parallelogram, the opposite angles are equal. ATQ,

(6x-21)° = (4x+11)°

Taking like terms together,

6x-4x = 21 + 11

2x = 32

x = 16

∠C = (6x-21)° = 6(16) -21 = 75°

So, ∠A = 75°

So, ∠A = ∠C = 75°. Hence, the correct option is (B).

Answer:

option A

Step-by-step explanation:

\(\frac{x+ 3}{12x} \ \cdot \ \frac{4x}{x^2 +x - 6}\\\\= \frac{x+ 3}{12x} \ \cdot\ \frac{4x}{x^2 +3x - 2x - 6}\\\\= \frac{x+ 3}{12x} \cdot \frac{4x}{x(x + 3) -2(x+3)}\\\\= \frac{x+ 3}{12x} \cdot \frac{4x}{(x + 3)(x -2)}\\\\= \frac{1}{12x} \ \cdot \ \frac{4x}{(x - 2)} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\\\= \frac{1}{3} \ \cdot \ \frac{1}{(x - 2)}\\\\= \frac{1}{3(x - 2) }\)

Answer:

24000 grams

Step-by-step explanation:

1kg = 1000 grams

So 24kg × 1000 = 24000 grams

The test statistic for this problem is given as follows:

t = -0.7.

We have the standard deviation for the sample, hence the t-distribution is used to calculate the test statistic.

The equation for the test statistic is given as follows:

\(t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}\)

In which:

The parameters for this problem are given as follows:

\(\overline{x} = 68.4, \mu = 69, s = 10.5, n = 152\)

Hence the test statistic is given as follows:

\(t = \frac{68.4 - 69}{\frac{10.5}{\sqrt{152}}}\)

t = -0.7.

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Answer:

(4a - 11b)(4a + 11b)

Step-by-step explanation:

16a² - 121b² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

16a² - 121b²

= (4a)² - (11b)²

= (4a - 11b)(4a + 11b)

Answer:

Step-by-step explanation:

Rule: (a^2-b^2)=(a-b)(a+b) (‘difference of squares’)

16a^2-121b^2

(4a-11b)(4a+11b)

Answer:

v = 37.5

Step-by-step explanation:

extreme big brain

Answer:

Its XYW is half of LXYZ

Step-by-step explanation:

.

Answer:

this is the required solution