I need help on this iready question

The dimension of Nul A = 0 and the dimension of Col A = 4. means that the matrix A has no solutions for the homogeneous equation A × x = 0, which means that its null space is trivial, and it has 4 linearly independent columns, which means that its column space is 4-dimensional.

In other words, it is the number of linearly independent vectors x that satisfy the equation Ax = 0.

The dimension of Col A, also known as the column space of the matrix A, is the dimension of the subspace spanned by the columns of the matrix A. In other words, it is the number of linearly independent columns of matrix A.

In general, it is not possible to determine the dimensions of Nul A and Col A of a matrix just by looking at its elements. In order to find the dimensions, we need to perform the row echelon form or reduced row echelon form of the matrix to find the rank and the nullity which is the difference in the number of columns and rank.

For the specific matrix A provided, the rank of the matrix is not provided, thus we can not determine the dimension of the Nul A and Col A.

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The image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).

A dilation with a center of (0,0) and a scale factor of 7 means that every point in the plane will be multiplied by a factor of 7 from the origin.

To find the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7, we can simply multiply the coordinates of L by the scale factor.

The coordinates of the image point L' will be:

L' = (-4 × 7, 0 × 7) = (-28, 0)

Therefore, the image of the point L(-4,0) after a dilation with a center of (0,0) and a scale factor of 7 is the point L'(-28,0).

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Answer:

34560

Step-by-step explanation:

You have to multiply to get your answer

Hope I'm right...

Hope this helps plz like and brainly :D

Further processing of the product will lead to a decrease Camp in profit by $6,000.

Profit is the money left with a company after paying for business expenses from the question;

In the first scenarioWe calculate the profit as;So, Profit in current = 1,000 units × ( $54 - $38)= $16,000In the second scenario;

If we process further, than the profit will be as follows:

Profit after processing = 1,000 units × ( $81 - ( $38 + $33))

= 1,000 units × ( $81 - $71)= $10,000

So, Change in profit = $10,000 - $16,000 = -$6,000 (negative shows decrease)So, Further processing will decrease profit by $6,000.

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Answer:

1,039,000

Step-by-step explanation:

The total sales of the company are $5,600,000.

If one-seventh of the company's sales are made in New England, we can set up the following equation:

New England Sales = (1/7) * Total Sales

Given that New England sales amount to $800,000, we can plug this value into the equation:

$800,000 = (1/7) * Total Sales

To find the total sales (in dollars) of the company, we can rearrange the equation to solve for Total Sales:

Total Sales = $800,000 * 7

Total Sales = $5,600,000

Therefore, the total sales of the company are $5,600,000.

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well, is really "x", now

\(x\left( \cfrac{2}{3}\right)~~ = ~~-8\implies \cfrac{2x}{3}=-8\implies 2x=-24\implies x=-\cfrac{24}{2}\implies x=-12\)

The insurance company would pay a total of $101,000 for the medical expenses resulting from the accident.

In this scenario, Sally's car insurance policy has coverage limits of 100/300/50. These numbers represent the maximum amount the insurance company will pay for different types of damages in an accident. Let's break down what these numbers mean in the context of the collision.

The first number, 100, represents the maximum amount (in thousands of dollars) that Sally's insurance company will pay for bodily injury per person. Since Sally sustained $150,000 in injuries and her passenger sustained $1,000 in injuries, the insurance company will cover Sally's medical expenses up to the policy limit, which is $100,000.

The second number, 300, represents the maximum amount (in thousands of dollars) the insurance company will pay for bodily injury per accident. In this case, both Sally and her passenger were injured, so the insurance company will cover their combined medical expenses up to the policy limit, which is $300,000.

The third number, 50, represents the maximum amount (in thousands of dollars) the insurance company will pay for property damage per accident. However, since the question only mentions injuries and not property damage, we can disregard this number for now.

Therefore, the total medical expenses the insurance company would pay for this accident would be $100,000 for Sally's injuries and $1,000 for her passenger's injuries, totaling $101,000.

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Answer:

\(8 {x}^{2} - 6x - 5 = x\)

\(8 {x}^{2} - 7x - 5 = 0\)

x = (7 + √((-7)^2 - 4(8)(-5)))/(2×8)

= (7 + √(49 + 160))/16

= (7 + √209)/16

= -.4661, 1.3411 (to 4 decimal places)

Answer:

The probability that the selected number is an odd number or a multiple of 3 is 6/9, or 2/3. This is because there are 6 numbers that meet the criteria out of the 9 numbers in the set: 1, 3, 5, 7, 9, and 3.

According to the question, there are 37000 plants per hectare, the total corn plan required is 475,665.75 corn plants

The trapezium is a 2 -dimensional plane shape with the area calculated as shown below:

The formula for calculating the area of a trapezoid is expressed as:

Area = 0.5(a + b)h

Given the following parameters

Substitute the given parameters
Area = 1/2 (500 + 900) * 800
Area = 1/2 (1400) * 800
Area = 560000 square feet

Since 1 acre is equivalent to 43560 square feet, hence the total acre required is expressed as:

Total acre = 560000/43560
Total  acre = 12.856 acres

Also since there are 37000 plants per hectare, the total corn plan required is 475,665.75 corn plants

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Answer:

x < -3 or x > 2

Step-by-step explanation:

x² + x - 6 > 0

Convert the inequality to an equation.

x² + x - 6 = 0

Factor using the AC method and get:

(x - 2) (x + 3) = 0

If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.

x - 2 = 0

x = 2

x + 3 = 0

x = -3

So, the solution is x < -3 or x > 2

Answer:

what is the answers

Step-by-step explanation:

Answer:

The ball will not reach a height of 41 meters.

The discriminate is 784

Step-by-step explanation:

You know that the height h of the ball, in meters, at time t seconds is modeled by the function h(t) = - 5*t² + 2*t + 39

To find out if the ball will reach a height of 41 meters, you must calculate the maximum of the function, that is, the highest or highest point on the graph.  That is, the maximum in a function f is the largest value that the function takes.

The vertex is a point that is part of the parabola, which has as its ordinate the maximum value (as in this case) or minimum value of the function. That is, the vertex is the maximum of the function (as in this case) or minimum.

In this case, the maximum of t is obtained by:

\(t=\frac{-b}{2*a}\)

Being a=-5 and b=2 (comparing with a quadratic function of the form: f(x)=a*x² + b*x +c)

\(t=\frac{-2}{2*(-5)}\)

t= 0.2

The maximum height value must be obtained by substituting the previously calculated value of t in the function:

h(0.2) = - 5*0.2² + 2*0.2 + 39

h(0.2)=39.2

So the maximum height the ball will reach is 39.2 meters. The ball will not reach a height of 41 meters.

The discriminate of a quadratic function is:

Δ=b²-4*a*c

In this case, being a=-5, b=2 and c=39, the discriminate is:

Δ=2²-4*(-5)*39

Δ= 4+780

Δ= 784

The discriminate is 784

The first derivative test is the process of analyzing functions using their first derivatives in order to find their extreme point.

No, ball can not reach at height of 41 meters.

Since, The height h of the ball, in meters, at time t seconds is modeled by the function  \(h(t)=-5t^2+2t+39\)

To find maximum height where can ball reach. We use first and second derivative test.

\(h(t)=-5t^2+2t+39\\\\\frac{dh}{dt}=-10t+2\)

Now, equate above derivative to zero.

 \(-10t+2=0\\\\t=1/5\)

Now, find second derivative

\(\frac{d^{2}h }{dt^{2} } =-10\)  , Which is less than zero.

Therefore, at t= 1/5 second , will give maximum height that can ball reach.

So,  h(1/5) = 39.2 meters.

That is, ball can reach at 39.2 meters.

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To represent an inequality on a number line, such as x>3, first draw a circle around the number. Fill in the circle if the sign also says equal to (or ).

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Answer:

its impossible for x to be -10 because absolute values are always positive

Answer:

it can't be true because an absolute value can not be negative if there is not a negative sign on the outside of the absolute value signs.

Step-by-step explanation:

to make the expression true

-l x l = -10

the expression should be

l x l = 10

hope this helps

Then, multiply this result by 100 to get the percentage. In this case, 120 is 80% of 150.

To use a double number line diagram to find what percent 120 is of 150, you need to create a diagram with two parallel lines. On the top line, mark 150 at one end and 100 at the other.

On the bottom line, mark 120 at one end and leave the other end blank. Then, draw diagonal lines connecting 120 on the bottom line to 150 on the top line and 100 on the top line to the blank end of the bottom line.

This creates two triangles. The height of the triangle with 120 is the percentage you're looking for.

To find this percentage, divide the length of the diagonal line connecting 120 and 150 by the length of the diagonal line connecting 100 and the blank end of the bottom line.

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Answer:

21)  x = 22.9,  y = 38.4

22)  x = 14.0,  y = 98.0

Step-by-step explanation:

As the interior angles of a triangle sum to 180°, the measure of the third angle of the given triangle is 100°.

\(\implies 180^{\circ}-52^{\circ}-28^{\circ}=100^{\circ}\)

As we know all interior angles and the length of one side of the triangle, we can use the Law of Sines to find the the values of x and y.

\(\boxed{\begin{minipage}{7.6 cm}\underline{Law of Sines (sides)} \\\\$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$\\\\\\where:\\ \phantom{ww}$\bullet$ $A, B$ and $C$ are the angles. \\ \phantom{ww}$\bullet$ $a, b$ and $c$ are the sides opposite the angles.\\\end{minipage}}\)

From inspection of the given triangle:

Substitute these values into the Law of Sines formula:

\(\dfrac{x}{\sin 28^{\circ}}=\dfrac{y}{\sin 52^{\circ}}=\dfrac{48}{\sin 100^{\circ}}\)

Solve for x:

\(\implies \dfrac{x}{\sin 28^{\circ}}=\dfrac{48}{\sin 100^{\circ}}\)

\(\implies x=\dfrac{48\sin 28^{\circ}}{\sin 100^{\circ}}\)

\(\implies x=22.882268...\)

\(\implies x=22.9\; \sf (nearest\;tenth)\)

Solve for y:

\(\implies \dfrac{y}{\sin 52^{\circ}}=\dfrac{48}{\sin 100^{\circ}}\)

\(\implies y=\dfrac{48\sin 52^{\circ}}{\sin 100^{\circ}}\)

\(\implies y=38.408020...\)

\(\implies y=38.4\; \sf(nearest\;tenth)\)

Therefore, the values of x and y (rounded to the nearest tenth) are:

\(\hrulefill\)

As we know the lengths of two sides of the triangle and their included angle, we can use the Cosine Rule to find the measure of side x.

\(\boxed{\begin{minipage}{6 cm}\underline{Cosine Rule} \\\\$c^2=a^2+b^2-2ab \cos C$\\\\where:\\ \phantom{ww}$\bullet$ $a, b$ and $c$ are the sides.\\ \phantom{ww}$\bullet$ $C$ is the angle opposite side $c$. \\\end{minipage}}\)

From inspection of the given triangle:

Substitute these values into the Cosine Rule and solve for x:

\(\implies x^2=11^2+19^2-2(11)(19)\cos 47^{\circ}\)

\(\implies x^2=482-418\cos 47^{\circ}\)

\(\implies x=\sqrt{482-418\cos 47^{\circ}}\)

\(\implies x=14.0329856...\)

\(\implies x=14.0\; \sf (nearest\;tenth)\)

Now use the Law of Sines to calculate angle y.

As angle y is obtuse, and the sine of an obtuse angle is the same as the sine of its supplement, then:

\(\implies \dfrac{x}{\sin 47^{\circ}}=\dfrac{19}{\sin (180-y)^{\circ}}\)

Rearrange the equation to isolate y:

\(\implies \sin (180-y)^{\circ}=\dfrac{19\sin 47^{\circ}}{x}\)

\(\implies (180-y)^{\circ}=\sin^{-1}\left(\dfrac{19\sin 47^{\circ}}{x}\right)\)

\(\implies y^{\circ}=180^{\circ}-\sin^{-1}\left(\dfrac{19\sin 47^{\circ}}{x}\right)\)

Substitute the found value of x and evaluate:

\(\implies y^{\circ}=180^{\circ}-\sin^{-1}\left(\dfrac{19\sin 47^{\circ}}{14.0329856...}\right)\)

\(\implies y^{\circ}=180^{\circ}-81.9795708...^{\circ}\)

\(\implies y^{\circ}=98.020429...^{\circ}\)

\(\implies y=98.0\; \sf (nearest\;tenth)\)

Therefore, the values of x and y (rounded to the nearest tenth) are:

Answer:

(2,6)

Step-by-step explanation:

If you look at where the red and blue like meet, we can see that it's on (2,6). 2 is the x value, and 6 is the y value.

Answer:

Step-by-step explanation:

F=ma

28=7m

m=28/7=4

F=4a

when a=3 m/s²

F=4×3=12 N

Answer:

Lucas groups the polynomial (12x^3 + 8x) + (–6x^2 – 4) to factor → 2 (2 x - 1) (3 x^2 + 2)

Step-by-step explanation:

Factor the following:

12 x^3 - 6 x^2 + 8 x - 4

Hint: | Factor out the greatest common divisor of the coefficients of 12 x^3 - 6 x^2 + 8 x - 4.

Factor 2 out of 12 x^3 - 6 x^2 + 8 x - 4:

2 (6 x^3 - 3 x^2 + 4 x - 2)

Hint: | Factor pairs of terms in 6 x^3 - 3 x^2 + 4 x - 2 by grouping.

Factor terms by grouping. 6 x^3 - 3 x^2 + 4 x - 2 = (6 x^3 - 3 x^2) + (4 x - 2) = 3 x^2 (2 x - 1) + 2 (2 x - 1):

2 3 x^2 (2 x - 1) + 2 (2 x - 1)

Hint: | Factor common terms from 3 x^2 (2 x - 1) + 2 (2 x - 1).

Factor 2 x - 1 from 3 x^2 (2 x - 1) + 2 (2 x - 1):

Answer: 2 (2 x - 1) (3 x^2 + 2)

Answer:

Both students are correct because polynomials can be grouped in different ways to factor. Both ways result in a common binomial factor between the groups. Using the distributive property , this common binomial term can be factored out. Each grouping results in the same two binomial factors.

Step-by-step explanation:

this is the sample response provided by edge

Respuesta:

Si el número de yardas (Y) es igual al número de pies (F) dividido por 3, entonces podemos establecer la siguiente ecuación:

La gráfica de esta ecuación es una linea recta con pendiente 1/3 y que pasa por el origen, como sigue:

Simin's behavior is an example of buying for the wrong reason.

Simin's main motivation was the fact she did poorly on her exam and due to this, she decides to buy clothes to "feel better".

Simin's behavior shows impulsiveness when deciding how to use money or what to buy. Indeed, Simin's reason to buy the clothes is not the best because it is based on emotions rather than on logic. Based on this, Simin's actions are an example of buying for the wrong reason.

Note: This question is incomplete because the options are not provided. Here are the options:

A. Using credit wisely.

B. Trying to impress her friends.

C. Buying for the wrong reason.

D. Being forgetful.

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Answer:

2 4/5  pictures

Step-by-step explanation:

We can use a ratio to solve

4/5 picture    x picture      

--------------  = -------------

2/7 hour          1 hour

Using cross products

4/5*1  =  2/7x

Multiply each side by 7/2

4/5 * 7/2 = 7/2 * 2/7 x

28/10 =x

2 8/10=x

2 4/5

Answer:

1,171 miles

Step-by-step explanation:

The trip is 1792 miles.

They have driven (58857 - 58236) miles of the trip so far (because the odometer change is equal to the distance driven).

(58857 - 58236) = 621

They still need to drive 1792 - 621 miles

1792 - 621 = 1171

So they have 1171 miles left until they complete the trip.

Answer:

x is smaller than 5.6 and greater than 0

The BR is the perpendicular bisector of AC by CPCTC (corresponding parts of congruent triangles are congruent).

Based on the given information that angles ABR and ACR are right angles, and AB = AC, we can conclude that triangles ABR and ACR are right triangles.

Using the shared hypotenuse AR and the reflexive property, we can determine that side AB is congruent to side AC.

With this information, the transitive property allows us to conclude that angle BAR is congruent to angle CAR. Next, using the HL congruence postulate, we can prove that triangle ABR is congruent to triangle ACR.

This means that side BR is congruent to side CR, and angle BAC is bisected by line segment BR by the definition of bisector.

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The survey would also ask the respondent to provide an estimate of their total credit card spending in the past 12 months.

The survey would ask questions about the respondent's credit card usage, such as how often they use credit cards, what types of purchases they make with credit cards, how much they spend on average each month, and any other related questions.

The survey would also ask the respondent to provide an estimate of their total credit card spending in the past 12 months. The survey should also include a margin of error of +/- $3500 to ensure the accuracy of the results.

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Answer:

The exact value of the other leg is 10.

Step-by-step explanation:

Finding the exact value of x given a 45 degree angle and a side length of 10 can be done using trigonometry. In a 45-45-90 right triangle, the two legs are congruent and the hypotenuse is equal to the square root of 2 times the length of the legs.

Therefore, if one leg is 10, the hypotenuse is 10 times the square root of 2. To find the length of the other leg, we can use the Pythagorean theorem:

c^2 = a^2 + b^2, where c is the hypotenuse, a and b are the legs of the right triangle.

Substituting known values, we get:

(10√2)^2 = 10^2 + b^2

200 = 100 + b^2

b^2 = 100

b = 10

Therefore, the exact value of the other leg is 10.