The coordinate 3 has a weight of 2,
and the coordinate 9 has a weight of 1.
Find the weighted average.
PLEASEEE HELPPP

Answer:

4.8

Step-by-step explanation:

Answer:

4.8

Step-by-step explanation:

mark braineist pls

The general convention is to reject a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect. This is False.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.

After a performing a test, scientists can reject the null hypothesis meaning there is a definite, consequential relationship between the two phenomena

In this case, the convention is to accept a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect.

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Answer:

100.00-0.22 is 99.78

U have to use decimal method. don't use Normal method

Answer:

none of them the correct answer is (x,y) (5,0)

The results of the expressions involving logarithms are listed below:

Case 1: 1 / 2

Case 2:

Subcase a: 0

Subcase b: 11 / 2

Subcase c: - 11 / 2

In this problem we have a case of an expression involving logarithms that must be simplified and three cases of expressions involving logarithms that must be evaluated. Each case can be solved by means of the following logarithm properties:

㏒ₐ (b · c) = ㏒ₐ b + ㏒ₐ c

㏒ₐ (b / c) = ㏒ₐ b - ㏒ₐ c

㏒ₐ cᵇ = b · ㏒ₐ c

Now we proceed to determine the result of each case:

Case 1

㏒ ∛8 / ㏒ 4

(1 / 3) · ㏒ 8 / ㏒ 2²

(1 / 3) · ㏒ 2³ / (2 · ㏒ 2)

㏒ 2 / (2 · ㏒ 2)

1 / 2

Case 2:

Subcase a

㏒ [b / (100 · a · c)]

㏒ b - ㏒ (100 · a · c)

㏒ b - ㏒ 100 - ㏒ a - ㏒ c

3 - 2 - 2 + 1

0

Subcase b

㏒√[(a³ · b) / c²]

(1 / 2) · ㏒ [(a³ · b) / c²]

(1 / 2) · ㏒ (a³ · b) - (1 / 2) · ㏒ c²

(1 / 2) · ㏒ a³ + (1 / 2) · ㏒ b - ㏒ c

(3 / 2) · ㏒ a + (1 / 2) · ㏒ b - ㏒ c

(3 / 2) · 2 + (1 / 2) · 3 + 1

3 + 3 / 2 + 1

11 / 2

Subcase c

㏒ [(2 · a · √b) / (5 · c)]⁻¹

- ㏒ [(2 · a · √b) / (5 · c)]

- ㏒ (2 · a · √b) + ㏒ (5 · c)

- ㏒ 2 - ㏒ a - ㏒ √b + ㏒ 5 + ㏒ c

- ㏒ (2 · 5) - ㏒ a - (1 / 2) · ㏒ b + ㏒ c

- ㏒ 10 - ㏒ a - (1 / 2) · ㏒ b + ㏒ c

- 1 - 2 - (1 / 2) · 3 - 1

- 4 - 3 / 2

- 11 / 2

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Answer:

$1.15

Step-by-step explanation:

add the cost of all of the items: 1 + 3.50 + 3.50 + 1 = 9

multiply 9 by the given discount: 9 x 0.15 = 1.35

you get 1.15, this is the dollar price of the discount

Answer:

C, 1.35

Step-by-step explanation:

Let's add the prices of the items together first since they got 15% off when they bought it together.

1 + 3.50 + 3.50 + 1 = 9

Next, we will do 15% off of 9.

15% x 9 =

(15:100) x 9 =

(15 x 9):100 =

135:100 = 1.35

Given a radius and a central angle in radian, the formula in solving arc length is:

Since the angle and radius are given already in the problem, let's plug it in to the formula above.

Then, solve.

Therefore, the length of an arc having a central angle of 12π/7 is approximately 134.64 meters.

Answer:

y = 3

Step-by-step explanation:

2y - 3 = \(\sqrt{3y^2-10y+12}\)

square both sides to remove sqrt bracket

(2y - 3)^2 = ( \(\sqrt{3y^2-10y+12}\) )^2

simplify both sides

(2y - 3)(2y - 3) = \(3y^2\) - 10y + 12

\(4y^2\) - 12y + 9 = \(3y^2\) - 10y + 12

bring all value to left side

\(y^2\) - 2y - 3 = 0

factor

(y - 3)(y + 1)

solve for y

y = 3, y = -1

When plugged back into the equation, only y = 3 is true

Answer:

y = 3

Step-by-step explanation :

\(2y - 3 = \sqrt{ 3y² - 10y + 12} \)

Swap the sides both of the equation.

\(\sqrt{ 3y² - 10y + 12} = 2y - 3 \)

To remove the brackets of equations square both side and simplify .

3y² - 10y + 12 = 4y² - 12y + 9

Move the expression to left-hand side and change its sign.

3y² - 10y + 12 - 4y² + 12y - 9 = 0

collect like terms

3y² - 4y² - 10y + 12y + 12 - 9 = 0

-y² + 2y + 3 = 0

Change the sign of expression. because it helps to solve.

y² - 2y - 3 = 0

Splits the term -2y

y² + y -3y - 3 = 0

Factor out y from the first pair and -3 from second pair of expression.

y ( y + 1 ) - 3 ( y + 1) = 0

Factor out y + 1 from the expression.

( y + 1 ) ( y - 3 ). = 0

When product and factors equals 0. at least one factor is 0.

y + 1 =0

y - 3 = 0

Solve for y

y = -1 and y = 3

If we plug the 3 as y in the expression we find that y = 3 is the true solution of this expression.

This equation has one solution which is y = 3.

Lets solve each option:

9/x - 1 = 4

9 / x = 3

x = 27

Nope!

3x + 1 = 9

3x = 8

x = 8/3

Nope!

2x + 4 = 10

2x = 6

x = 3

Yes!

x/3 + 5 = 6

x/3 = 1

x = 3

Yes!

9 - 3x = 0

-3x = -9

x = 3

Yes!

5x - 7 = 1

5x = 8

x = 8/5

Nope!

This means that the correct answers are:

2x + 4 = 10

x/3 + 5 = 6

9 - 3x = 0

I hope this helps! :)

Answer:

The answer is 12 units

Step-by-step explanation:

The length of the radius is 12 units

The radius of a circle is a line drawn from the center of the circle to its circumference

The length (L) of the arc is given as:

\(L = 10\pi\)

The length of an arc is:

\(L = r\theta\)

So, we have:

\(r\theta =10\pi\)

The angle at the center of the circle is \(\frac{5\pi}{6}\)

So, we have:

\(r* \frac{5\pi}{6}=10\pi\)

Multiply both sides by 6

\(r* 5\pi=60\pi\)

Divide both sides by 5pi

\(r = 12\)

Hence, the length of the radius is 12 units

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Answer:

Evaluate ∫3x2sin(x3)cos(x3)dx

Step-by-step explanation:

hello        (a) using the substitution u=sin(x3)  because

du =3x²(cos x3)dx

you have   ∫3x2sin(x3)cos(x3)dx = ∫udu=u²/2 +c............continu

Answer:

tanx= -1 is the correct answer.

Answer:

403.625

Step-by-step explanation:

Online calc cuz nobody knows how to do long division no more

Answer:

29cents

Step-by-step explanation:

Given the dimension of the Kitchen as;

Length = 9feet 9inches

Width = 7feet 4inches

Since 1inch = 0.833ft

Length = 9+(9×0.833) = 9+7.497=16.497feet

Width = 7+(4×0.833) = 7+3.332 = 10.332feet

Area of the kitchen in ft² = 16.497×10.332= 170.447004ft²

Since Hector pays $50 to cover the floor, hence;

$50 = 170.447004ft²

x = 1ft²

Cross multiply

170.447004x= 50

x = 50/170.447004

x= $0.2933

x = 29.33cents

Cost of each square foot of his kitchen will be 29cents to nearest cent

Gene is incorrect in his statement. Let's compare the two numbers -2 1/8 and -2.25.Gene's claim that -2 1/8 is less than -2.25 is incorrect based on the numerical comparison of the two values.

To compare these numbers, we can convert them to a common format. -2 1/8 can be written as a decimal by dividing 1 by 8 and adding it to -2:

-2 1/8 = -2 + 1/8 = -2 + 0.125 = -2.125

Now let's compare -2.125 and -2.25. Both numbers are negative, so we can compare their absolute values instead.

|-2.125| = 2.125

|-2.25| = 2.25

Since 2.125 is less than 2.25, it means that -2.125 is less than -2.25. Therefore, Gene's statement that -2 1/8 is less than -2.25 is incorrect.

In decimal form, -2.125 is closer to 0 than -2.25. The value -2.125 is actually greater than -2.25 because the closer a number is to 0, the greater it is in the negative direction.

Therefore, Gene's claim that -2 1/8 is less than -2.25 is incorrect based on the numerical comparison of the two values.

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Answer:

An open circle at 32 and everything to the right of the circle is shaded.

Step-by-step explanation:

\(-\dfrac12p < -16\)

Divide both sides by -1 (remembering to reverse the sign):

\(\implies \dfrac12p > 16\)

\(\implies p > 32\)

Open circle:  < or >

Closed circle:  ≤ or ≥

Therefore, open circle at 32 and everything to the right of the circle is shaded.

Answer:

A on edge 2023

Step-by-step explanation:

Answer:

a) Equation B is correct

b) u = 5.2 m

Step-by-step explanation:

              \(\sf Sin \ \theta = \dfrac{opposite \ side \ \angle64^\circ}{hypotenuse}\\\\\\Sin \ 64^\circ = \dfrac{u}{5.8}\\\\\\0.8987 = \dfrac{u}{5.8}\)

    0.8987 * 5.8 = u

                    u   = 5.2 m

The midpoint of the midsegment of Trapezoid is   E(2m, 2n) and F (2(q+p), 2n).

According to the question,

The vertices of the trapezoid are A(4m , 4n) , B(4q , 4n) , C(4p , 0) and D(0,0).

Let mid-point of midsegment of Trapezoid be E and F

Using section formula

E (x- coordinate)= 1*4m + 0 /2

E (x- coordinate)=2m

E (Y- coordinate)= 4n/2

E  (Y- coordinate)=2n

So, the coordinates of E (2m, 2n)

similarly,

F (x- coordinate)= (1*4q + 1*4p)/2

F (x- coordinate)=2(p + q)

F (Y- coordinate)= 4n/2

F(Y- coordinate)=2n

So, the coordinates of F (2(q +p), 2n)

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The problem requires that we determine the maximum profit. The revenue equation is \(R(x,y) = 4x + 2y\) and the cost equation is C.

\((x,y) = x² - 3xy + 8y² + 6x - 47y - 3.\)

The profit equation can be found by subtracting the cost from the revenue.

\(P(x,y) = R(x,y) - C(x,y) = 4x + 2y - x² + 3xy - 8y² - 6x + 47y + 3 = -x² + 3xy - 8y² - 2x + 49y + 3\)

\(∂P/∂x = -2x + 3y - 2 = 0 ∂P/∂y = 3x - 16y + 49 = 0\).

Solving for x and y gives x = 25 and y = 14, which means that 25,000 type A solar panels and 14,000 type B solar panels should be produced per year to maximize profit. More than 100 words.

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average rate of change from 4 to 9 minutes is 2.25 min . division of the y-value change by the x-value change.

It represents the average change in the function's per-unit value during that time period. On the function's graph, it is generated from the slope of the line connecting the interval's ends.

the difference between the y- and x-values is divided. Calculating the average rate of change is very helpful for tracking changes in measurable parameters like average speed or average velocity.

Given that

the change in y value occurred in 9 minutes and the change in x value occurred in 4 minutes, the average rate of change was 9 minutes by 4 minutes, or2.25 minutes.

9 min / 4 min

= 2.25 min

average rate of change from 4 to 9 minutes is 2.25 min . division of the y-value change by the x-value change.

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Answer:

maximum: x ≤ 1.25 cm²

Step-by-step explanation:

We are told that the measurements have to be within 0.25 cm and 5 cm length. If those are the length measurements, let's find the area.

0.25 x 5 = 1.25

Within means that it cannot be greater than that number. So that means the maximum has to be 1.25 cm².

I'm not sure how you would find the minimum, though, in this problem, because it says the original size of the plate is 5cm x 3cm, but the company wants it to be no more than 1.25 cm². So I'm not really sure how you would be able to find the minimum given the things in the problem. I am just going to ASSUME that the minimum would be \(x\geq 0.00\), but again I think that might be wrong since it says this company wants exactly right measurements.

Sorry I can't help with that...

but I hope this helped. :)

Answer:

To determine how many boxes can be completely filled with 128 pencils, we can use division.

Dividing the total number of pencils by the number of pencils that can fit in each box, we get:

128 ÷ 9 = 14 remainder 2

This means that 14 boxes can be completely filled with 126 pencils (14 boxes x 9 pencils per box), and there will be 2 pencils remaining.

Therefore, 14 boxes can be completely filled with the 128 pencils, and there will be 2 pencils left over that won't fit in a complete box.

1-2-3-4-5-6-7-8-9-10

0.10)/%

Answer:

144 in^2

Step-by-step explanation:

Using the A = s^2 and the text says that s= 12in

 the answer is 12 in * 12 in = 144 in^2

The equation of the ellipse that shares a vertex and a focus with the parabola x² y = 100 is ((x²)/(a²)) + ((y²)/(b²)) = 1. This equation represents an ellipse centered at the origin, with the x-axis as its major axis and the y-axis as its minor axis.

To find the equation of the ellipse, we need to determine the values of a and b, which represent the lengths of the major and minor axes, respectively. The vertex and focus of the ellipse coincide with those of the given parabola, which is in the form x²y = 100.

We start by considering the vertex. For the parabola, the vertex is located at the origin (0, 0). Hence, the center of the ellipse is also at the origin. Therefore, the x-coordinate and y-coordinate of the vertex of the ellipse are both zero.

Next, we consider the focus. In the equation of the parabola, we can rewrite it as y = 100/x². By comparing this with the standard equation of a parabola, y = 4a(x-h)² + k, where (h, k) is the vertex, we can deduce that

h = 0 and k = 0.

Thus, the focus of the parabola is located at (h, k + 1/(4a)), which in this case simplifies to (0, 1/(4a)). As the focus of the ellipse coincides with the focus of the parabola, we conclude that the focus of the ellipse is also (0, 1/(4a)).

Using the properties of the ellipse, we know that the distance between the center and either the vertex or the focus along the major axis is equal to a. In our case, the distance between the origin and the vertex is zero, so a = 0.

Also, the distance between the origin and the focus is equal to 1/(4a), so we have 1/(4a) = a. Solving this equation, we find a⁴ - 4a² - 1 = 0.

Solving this quartic equation, we find two positive real solutions for a: a = sqrt(100 + sqrt(101)) and a = sqrt(100 - sqrt(101)). These values represent the lengths of the semi-major axis of the ellipse.

Finally, we can write the equation of the ellipse as ((x²)/(a²)) + ((y²)/(b²)) = 1, where b represents the length of the semi-minor axis. Since the ellipse is symmetric, we have b = sqrt(a² - 1).

Plugging in the values of a, we obtain b = sqrt(100 - sqrt(101)).

Therefore, the equation of the ellipse that shares a vertex and a focus with the parabola x²y = 100 is ((x²)/(a²)) + ((y²)/(b²)) = 1,

where a = sqrt(100 + sqrt(101)) and b = sqrt(100 - sqrt(101)).

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Answer:

Assuming your equations are:

x-3y=3

4x+3y=-3

The answers are x = 0 and y = -1.

See the image for the graph.

If this solution helped you, consider upvoting it and giving a brainliest!

Step-by-step explanation:

See the image for the graph.

Answer:

A. The amount of money you have at the end of the statement period

Step-by-step explanation:

A "closing balance" is the The amount of money you have at the end of the statement period

Answer:

Non-linear

Step-by-step explanation:

Because the line is not straight.