Astrid is painting the outside of her cabin. She knows that working alone, it will take her 23 hours to complete the job. A reasonable estimate for how long the job will take if she has her two sons help if they each work at approximately the same rate as Astrid is

a a car accelerates, then maintains its speed before speeding up again

Answer:

310

Step-by-step explanation:

150+40+40+40+40

Answer

$310

Step-by-step explanation:

150+40*4)=

310

To prove the SSS Inequality Theorem using an indirect proof, we need to assume the opposite of what we are trying to prove and show that it leads to a contradiction.

The SSS Inequality Theorem states that for any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

Assume that there exists a triangle ABC where the sum of the lengths of two sides is not greater than the length of the third side. Without loss of generality, let's assume that AB + BC ≤ AC.

Now, consider constructing a triangle ABC where AB + BC = AC. This would mean that the triangle is degenerate, where points A, B, and C are collinear.

In a degenerate triangle, the sum of the lengths of any two sides is equal to the length of the third side. However, this contradicts the definition of a triangle, which states that a triangle must have three non-collinear points.

Therefore, our assumption that AB + BC ≤ AC leads to a contradiction. Hence, the SSS Inequality Theorem holds true, and for any triangle, the sum of the lengths of any two sides is greater than the length of the third side.

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The given linear programming problem does not exhibit infeasibility, unboundedness or alternate optimal solutions.

Linear programming is an optimization technique to solve optimization problems. Linear programming is the process of optimizing a linear objective function of several variables subject to constraints on the variables. A linear programming model always has an objective function and constraints expressed as linear equations or inequalities.

Linear programming can be solved graphically or by using the simplex algorithm. The given linear programming problem isMin 1X + 1Ys.t. 5X + 3Y < 303X + 4Y > 36Y < 7X , Y > 0There are three constraints in the given linear programming problem, and each of them can be represented by a straight line in a two-dimensional graph. The feasible region is the shaded area where all the constraints are satisfied.

The objective function can be represented by a straight line as well.The feasible region in the given linear programming problem is not empty, which means there is at least one feasible solution. The feasible region is bounded, which means the optimal solution exists.

The objective function has a finite minimum value, which means the optimal solution is unique. Therefore, the given linear programming problem does not exhibit infeasibility, unboundedness or alternate optimal solutions.

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Answer:

(1, -2)

Step-by-step explanation:

Since (-1, -2) is in quadrant 3 and reflected to quadrant 4, the values become (+, -)
Hope this helps :)

Answer:

V represents final velocity

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Answer:

23

Step-by-step explanation:

Because 2 dollar each cup. so 2 times 23 is $46. 5 star if this help thanks:)

Answer:

Step-by-step explanation:

If x=10 and y=20 solve:

"x/y"

A.1/2

B.1

C.2

D.4

x/y =

10/20

1/2  is your answer

We need to check if y=8 and x = -1 are perpendicular or parallel.

The line y=8, is a straight line for which the y-values within it are equal to 8, therefore it is parallel to the x-axis.

The line x=-1, is a straight line for which all the values have the same value of x, which is -1, therefore it is parallel to the y-axis.

The lines are, therefore, perpendicular.

The value of expression is 33

For evaluating the expression, we will keep the given values of variables in the expression. Further solving will be done according to the mathematical operators.

Rewriting the equation -

Value = 11 (a + 2b) + 2 (a - 2b)

Now keeping the values of variables in expression -

Value = 11 (-3 + 2×4) + 2 (-3 - 2×4)

Firstly solving the brackets

Value = 11 ( -3 + 8) + 2 (-3 - 8)

Value = 11 (5) + 2 (-11)

Performing multiplication

Value = 55 - 22

Performing subtraction

Value = 33

Hence, the expression for the given values of the variables is 33.

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Answer:

36 feet long

Step-by-step explanation:

When you get the question it should look like this: 6/2.5   X/15.

Your gonna have to cross multiply 6 and 15 the keep 2.5 and X like this: 2.5x

After that, it should look like this: 2.5x=90, Now your gonna wanna divide 90 and 2.5 which you will get 36.

X= 36 ft long.

Hoped this helped!

The particle is speeding up after 1.67 seconds.

What is displacement ?

In physics, displacement refers to the distance and direction of an object's change in position from its starting point to its ending point. It is a vector quantity, which means that it has both magnitude and direction.

Displacement is different from distance, which is the total length of the path an object has traveled, regardless of direction. Displacement only considers the straight-line distance and direction between the starting and ending points.

According to given conditions :

To determine when the particle is speeding up, we need to find the acceleration of the particle.

The acceleration of the particle is given by the second derivative of its position function:

a(t) = s''(t) = 6t - 10

The particle is speeding up when its acceleration is positive. So, we need to find the values of t for which a(t) > 0.

Setting a(t) > 0, we have:

6t - 10 > 0

6t > 10

t > 10/6

t > 1.67

Since t ≥ 0, the particle is speeding up when t > 1.67.

Therefore, the particle is speeding up after 1.67 seconds.

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9514 1404 393

Answer:

  a  (3,-1)

Step-by-step explanation:

The number that "completes the square" is the square of half the x-coefficient, (-6/2)^2 = 9. Rearranging the given function to include the square trinomial, we have ...

  f(x) = x^2 -6x +9 -1 . . . . . . . here, we have 8 = 9 - 1

  f(x) = (x -3)^2 -1 . . . . . . . . . . vertex form

Comparing this to the generic vertex form ...

  f(x) = (x -h)^2 +k . . . . . . . vertex at (h, k)

we see that h=3 and k=-1.

The vertex is (h, k) = (3, -1).

The current ratio for 2018 is approximately 3.02, and the current ratio for 2019 is approximately 2.97.

To calculate the current ratio for 2018 and 2019, we divide the current assets by the current liabilities for each year.

For 2018:

Current Ratio = Current Assets / Current Liabilities

Current Ratio = $101,600 / $33,650

Current Ratio ≈ 3.02

For 2019:

Current Ratio = Current Assets / Current Liabilities

Current Ratio = $97,350 / $32,800

Current Ratio ≈ 2.97.

Therefore, the current ratio for 2018 is approximately 3.02, and the current ratio for 2019 is approximately 2.97.

The current ratio is a financial metric that indicates a company's ability to cover its short-term liabilities with its short-term assets.

A higher current ratio generally suggests a better ability to meet short-term obligations.

Please note that the calculated current ratios are approximations, rounded to two decimal places, based on the given data.

For precise analysis, it's important to consider additional financial information and trends over time.

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To identify the surface with the given vector equation, we need to examine the coefficients of the variables in each component of the equation. In this case, we have:

r(u,v) = (u+v)i + (3-v)j + (1+4u+5v)k

This represents a vector-valued function in three-dimensional space. To see what surface it describes, we can look at the coefficients of u, v, and constants in the equation.

The coefficient of u is 4 in the k-component, so the surface will have a slope in the u-direction. The coefficient of v is 5 in the k-component, so the surface will also have a slope in the v-direction. The constant term is 1 in the k-component, so the surface will be offset by 1 unit in the positive k-direction.

Based on this information, we can conclude that the surface described by the given vector equation is a plane with a slope in the u and v directions, and is offset from the origin by 1 unit in the positive k-direction.

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Answer:

leta GOOOOOOOOOOOOOOOOO MARIOOO

Step-by-step explanation:

Answer:

the solution is 9/2 = X24

Hey there! :)

Answer:

p(x) = 6x - 15

Step-by-step explanation:

If p(x) = r(x) - c(x), subtract the two equations. Therefore:

p(x) = 10x - (4x + 15)

p(x) = 10x - 4x - 15

Combine like terms and simplify:

p(x) = 6x - 15

Answer:

6x-15

Step-by-step explanation:

P(x) = r(x) - c(x)

      = 10x - (4x+15)

 Distribute the minus sign

    = 10x-4x -15

 Combine like terms

    = 6x-15

After solving, the remainder when \(-x+3x^2-1\)  is divided by x + 1 is 3.

In the given question, we have to find the remainder when \(-x+3x^2-1\)  is divided by x + 1.

The given polynomial is \(-x+3x^2-1\).

We have to find the remainder of the polynomial when we divide this polynomial x + 1.

To find the polynomial we equate x+1 equal to zero to find the value of x.

x + 1 = 0

x = -1

Now putting x = -1 in the given equation \(-x+3x^2-1\).

P(x) = \(-(-1)+3(-1)^2-1\)

P(x) = 1 + 3×1 - 1

P(x) = 1 + 3 - 1

P(x) = 3

Hence, the remainder when \(-x+3x^2-1\)  is divided by x + 1 is 3.

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The complete question is:

When \(-x+3x^2-1\)  is divided by x + 1 then remainder will be?

Answer:

Yes

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Identify

Point (1, 4)

y = 8x - 4

Step 2: Find

yes.

you just have to check like this: 1 is x and 4 is y.

4 = 8(1) - 4

4 = 8 - 4

4 = 4

hope it helps.

Also, I think that Brainly is an awesome app, but there's an app which is doing great work for me in maths, named Gauthmath. I will suggest it. Video concepts and answers from real tutors.

Answer: The slope of a line in the form y = mx + b can be found by taking the coefficient of x, which is m. In this equation, the slope is not in that form, so we need to isolate y and put it in that form.

Starting with the equation:

3x - 1/2y = 5x + 4

We'll isolate y by subtracting 3x from both sides:

-1/2y = 2x + 4

And then multiply both sides by -2 to solve for y:

y = -4x - 8

So the slope of the line is -4.

Step-by-step explanation:

The probability of getting a difference of 3 when two fair dice are thrown together is 1/9.

Probability is the measure of how likely it is that a certain event will occur. It is expressed as a number between 0 and 1, where 0 indicates that an event is impossible and 1 indicates that an event is certain. Probability can also be expressed as a percentage or fraction. Probability is used to describe the likelihood of an event occurring, and its calculation is based on the number of possible outcomes of the event.

This is due to the fact that there are 6 possible outcomes for each dice, and 36 possible outcomes when both dice are thrown. The only way to get a difference of 3 is for the first dice to show a 4 (1/6 probability) and the second dice to show a 1 (also 1/6 probability). This gives a combined probability of 1/6 x 1/6 = 1/36, which is 1/9.

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The level curves for f(x, y) = c, where

c = -2, 0, and 2, correspond to the equations

y = x³ + 2,

y = x³, and

y = x³ - 2, respectively.

To sketch the level curves for the function f(x, y) = c, where c is a constant, we can substitute the given values of c into the equation and plot the resulting curves. Let's consider c = -2, 0, and 2.

For c = -2:

The equation becomes

f(x, y) = x³ - y = -2. Rearranging, we have

y = x³ + 2. This represents a cubic function where the value of y depends on the value of x. By plotting this curve, we can visualize the level curve for c = -2.

For c = 0:

The equation becomes

f(x, y) = x³ - y = 0. Rearranging, we have

y = x³. This represents a cubic function passing through the origin. By plotting this curve, we can visualize the level curve for c = 0.

For c = 2:

The equation becomes

f(x, y) = x³ - y = 2. Rearranging, we have

y = x³ - 2. This represents a shifted cubic function where the value of y depends on the value of x. By plotting this curve, we can visualize the level curve for c = 2.

Therefore, to sketch the level curves for

f(x, y) = c, where c takes the values -2, 0, and 2, we need to plot the curves

y = x³ + 2 (c = -2),

y = x³(c = 0), and

y = x³ - 2 (c = 2), respectively.

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Answer:

A 6

Step-by-step explanation:

19.5÷3.25=6

Hope this helps.

Systematic random sampling is sometimes used in place of simple random sampling due to its efficiency, representativeness, ease of implementation, and cost-effectiveness.

Systematic random sampling is sometimes used in place of simple random sampling for several reasons, including:
Efficiency:

Systematic random sampling can be more efficient than simple random sampling, as it involves selecting elements at regular intervals from the population.

This often reduces the time and effort needed to collect data compared to simple random sampling.
Representativeness:

Systematic random sampling may provide a more representative sample of the population.

By selecting elements at regular intervals, it ensures that different segments of the population are included, reducing the potential for sampling bias.
Ease of implementation:

Systematic random sampling is relatively easy to implement, as it involves fewer random selections compared to simple random sampling.

This makes it more practical for large populations or when a sampling frame is not readily available.
Cost-effectiveness:

Systematic random sampling can be more cost-effective than simple random sampling.

Since the process is more efficient, it may require fewer resources, such as time and personnel, to collect data.

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Answer:

I think it's 1.5 minutes because 60/40=1.5

Step-by-step explanation:

The amount paid for the computer including sales tax is 0.918p

The price paid is given as:

Price = p

A 15% off means that he pays 85%.

So, we have:

Amount = 85% * p = 0.85p

A sales tax of 8% means:

Total = 0.85p * (1 + 8%)

Evaluate the product

Total = 0.918p

Hence, the amount paid is 0.918p

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Answer:

Angle A = 45 degrees

Angle B = 64 degrees

Angle C = 60 degrees

Hope this helps!