2x2=6 3x3=13 4x4=24 5x5=41 7x7=??

Answer:

Step-by-step explanation:

add both the equations then you will get

3x^3-x^2+2

but in the standard form there should be an x^1 term or x term since there is no term like that we write it as 0x

so the equation will be

3x^3-x^2+0x+2

Answer: 5 + 5 = 10

Reason: Imagine that you have 5 pencils in one hand, then you add another 5 pencils into that hand, and you would have 10 pencils. Thus 5 + 5 in this case is 10

Hope that helps!

Given that,

A group of workers can plant 2/5 acres in 7/8 days.

To find,

The unit rate in acres/day.

Solution,

To find unit rate, divide acres and days as follows:

\(R=\dfrac{\dfrac{2}{5}}{\dfrac{7}{8}}\ \text{acres/days}\\\\=\dfrac{2}{5}\times \dfrac{8}{7}\\\\=0.45\ \text{acres/days}\)

So, the unit rate is 0.45 acres/days.

28) \(\sqrt{43}\) is not a perfect square since 43 is not a perfect square.

29) -2/3 can be written as the ratio of the two integers.

According to the information we can infer that the parallel line would be AD or CF. Additionally, the perpendicular lines would be CB or FE.

To identify the parallel lines we must look at the figure and find the lines that have the same direction as the line BE and that would never intersect with the segment BE, according to the above, we can infer that the parallel lines would be:

On the other hand, the lines perpendicular to CF would be CB or FE because they make 90° angles with segment CF. Additionally, the face that would be parallel to ABC is DEF.

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The sum of the polynomials (6x³ – 5x² + 3x – 5) + (8x^4 + 3x³ + 5x² + x + 4) is: 8x^4 + 3x³ + 4x - 1.

To add polynomials, group like terms together, and add them accordingly.

Given the following:

(6x³ – 5x² + 3x – 5) + (8x^4 + 3x³ + 5x² + x + 4)

Open the bracket

6x³ – 5x² + 3x – 5 + 8x^4 + 3x³ + 5x² + x + 4

Add like terms

8x^4 + 3x³ + 4x - 1

The sum is: 8x^4 + 3x³ + 4x - 1.

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Answer:

8x^4 + 9x^3 + 4x -1

Step-by-step explanation:

Did it and got it right on my quiz :)

If you have more questions, put them in the comments and I'll try my best

Answer

10 hours

Explanation

Step one:

given information

Company A

charges $45 per hour and a $150 equipment fee.

Let A represent the amount Company A would charge for  t hours

So, the expression for the total is

A= 45t+150--------------------1

Company B

charges $35 per hour and a $200 equipment fee.

Let B represent the amount Company B would charge for  t hours

So, the expression for the total is

B= 35t+200--------------------2

Step two:

equating the two equations above

A=B

45t+150=35t+200

collect like terms

45t-35t= 200-150

5t=50

divide both sides by 5

t=50/5

t=10

Answer: To determine if Mr. Simon's estimate is reasonable, we can use benchmark fractions. A benchmark fraction is a common fraction that is easy to use as a reference, such as 1/2, 1/4, 1/8, etc.

Since Mr. Simon is cutting 5 feet from a board that is longer, we can compare 2 feet to a benchmark fraction. The closest benchmark fraction to 2 feet is 1/4 of 8 feet, which is also 2 feet. This means that if Mr. Simon's estimate is correct, he would be left with a board that is about 1/4 of the original length.

Now, let's write an equation to find the exact amount of the longer board that will be left over:

Length of longer board - 5 feet = Length of leftover board

We know that the length of the longer board is L feet. Substituting L into the equation, we get:

L - 5 = Length of leftover board

To solve for L, we can add 5 to both sides of the equation:

L - 5 + 5 = Length of leftover board + 5

L = Length of leftover board + 5

Since Mr. Simon estimates that 2 feet of the longer board will be left over, we can substitute 2 for Length of leftover board:

L = 2 + 5

L = 7

Therefore, the exact amount of the longer board that will be left over is 7 feet. This is larger than Mr. Simon's estimate of 2 feet, so his estimate is not reasonable.

Step-by-step explanation:

Answer:

i d k

Step-by-step explanation:

Answer:

When you multiply or divide each side by 2, the signs stay the same. −16 < 4 and −4 < 1. When you multiply or divide by −2, the inequality sign reversed. 16 > −4 and 4 > −1.

Answer:

The smallest level of significance at which the null hypothesis will still not be rejected is 0.05.

Step-by-step explanation:

The \(p-\) value of t-test is \(0.725009\). This \(p-\) value is greater than \(0.05\).

Hence, the null hypothesis is not rejected and conclude that there is no sufficient evidence of a difference in the mean amount of time required to reach a customer service representation between two hotels.

The complete question is :

Answer:

D

Step-by-step explanation:

Volume of cylinder = Base x height

Base = πr^2 = 25π

Volume = 25π x 10 = 250π

Volume of cone = 1/3 Base x height

= 1/3 x 25π x 5 = 125π/3

Volume of silo = cylinder + cone + cone

= 250π + 125π/3 + 125π/3

= 785.4 + 130.9 + 130.9

= 1047.2

Answer:

1.5 inches.

Step-by-step explanation:

A picture measuring 4 inches by 6 inches is placed inside a frame which has equal width around the entire picture.

The area of the frame and the picture is 63 square inches.

Answer:

100%hajsmsmwkwkkqjwjnwnw

Step-by-step explanation:

T = 55 + 6w

after 8 week $103

Answer:

b = 5

mark me as brainliest plz!! :DD

Answer:

\(x = 6\)

Carl is correct

Step-by-step explanation:

Given

\(\frac{6}{3} = \frac{12}{x}\)

See attachment

Required

Is Carl correct?

Using the side spotter theorem, the proportion is:

\(\frac{AB}{BC} = \frac{AE}{ED}\)

This gives:

\(\frac{6}{3} = \frac{12}{x}\)

This proportion is equivalent to Carl's.

Hence, Carl is correct.

Solving further: Cross Multiply

\(6 * x = 12 * 3\)

\(6 * x = 36\)

Make x the subject

\(x = \frac{36}{6}\)

\(x = 6\)

Controlled destruction, also known as selective demolition or deconstruction, involves carefully dismantling a building or structure in order to salvage and reuse as many materials as possible. This process can make it easier to build new buildings in several ways:

Minimizes waste: By salvaging and reusing materials from the old building, controlled destruction minimizes the amount of waste generated during the demolition process. This can reduce the need for new materials, which can be costly and time-consuming to source and transport.

Reduces environmental impact: Controlled destruction can also be more environmentally friendly than traditional demolition methods, as it produces less waste and pollution. This can help to minimize the impact on the local environment and reduce the carbon footprint of the construction project.

Provides access to reusable materials: Salvaging materials from the old building can also provide access to high-quality, durable materials that can be used in the construction of the new building. This can save time and money on sourcing new materials, and can also provide an opportunity to incorporate unique and interesting architectural features.

Helps to preserve historical buildings: In some cases, controlled destruction can be used to preserve historical buildings or structures by carefully dismantling them and reusing the materials in a new context. This can help to maintain the cultural and historical significance of the original building, while still allowing for new development and construction in the area.

Overall, controlled destruction can make it easier to build new buildings by minimizing waste, reducing environmental impact, providing access to reusable materials, and helping to preserve historical buildings.

~~~Harsha~~~

The value x in the secant line using the Intersecting theorem is 4.

Intersecting secants theorem states that " If two secant line segments are drawn to a circle from an exterior point, then the product of the measures of one of secant line segment and its external secant line segment is the same or equal to the product of the measures of the other secant line segment and its external line secant segment.

From the figure:

First sectant line segment = ( x - 1 ) + 5

External line segment of the first secant line = 5

Second sectant line segment = ( x + 2 ) + 4

External line segment of the second secant line = 4

Using the Intersecting secants theorem:

5( ( x - 1 ) + 5 ) = 4( ( x + 2 ) + 4 )

Solve for x:

5( x - 1 + 5 ) = 4( x + 2 + 4 )

5( x + 4 ) = 4( x + 6 )

5x + 20 = 4x + 24

5x - 4x = 24 - 20

x = 4

Therefore, the value of x is 4.

Option C) 4 is the correct answer.

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The Nearest tenth of a second, the flag is in the air for approximately 0.1 seconds before Zack catches it.

To determine the time the flag is in the air before Zack catches it, we can use the kinematic equation for vertical motion:

h = 16t^2 + vt + s

Where:

h is the height of the flag,

t is the time in seconds,

v is the initial vertical velocity of the flag,

s is the initial height of the flag.

In this case, the flag is thrown into the air from a height of 5 feet (s = 5) with an initial vertical velocity of 30 feet per second (v = 30). Zack catches it at a height of 7 feet (h = 7).

We can rewrite the equation as:

7 = 16t^2 + 30t + 5

To find the time (t) when the flag is at a height of 7 feet, we can rearrange the equation and solve for t. However, since this is a quadratic equation, we can also use the quadratic formula.

The quadratic equation in this case is:

16t^2 + 30t + 5 - 7 = 0

16t^2 + 30t - 2 = 0

Now, we can use the quadratic formula:

t = (-b ± √(b^2 - 4ac)) / (2a)

Applying the values from the quadratic equation, we have:

t = (-30 ± √(30^2 - 4 * 16 * (-2))) / (2 * 16)

Simplifying further:

t = (-30 ± √(900 + 128)) / 32

t = (-30 ± √1028) / 32

Using a calculator, we find two solutions:

t ≈ -1.08 seconds or t ≈ 0.06 seconds

Since time cannot be negative in this context, we discard the negative solution.

Therefore, to the nearest tenth of a second, the flag is in the air for approximately 0.1 seconds before Zack catches it.

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Answer: yes under these condition many traingles can be formed.

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Only a unique triangle can be formed im pretty sure

If a translation of T (2, -7) is applied to the triangle ABC as shown in the figure attached hereby for reference, and B (1, 5) gets repositioned to B', then the current coordinates of B' are (3, -2).

As per the question statement, a translation of T (2, -7) is applied to the triangle ABC as shown in the figure attached hereby for reference, and B (1, 5) gets repositioned to B'.

We are required to calculate the coordinates of B'.

To solve this question, we need to know what Translation (a, b) to (x, y) and (-a, -b) to (x, y) means. Translation (a, b) to (x, y) means the abscissa "x" is to be shifted to the right by "a" units while the ordinate "y" is to be shifted to the right by "b" units, i.e., after translation, the new coordinates become [(a + x), (b + x)]. On the other hand, Translation (-a, -b) to (x, y) means the abscissa "x" is to be shifted to the left by "a" units while the ordinate "y" is to be shifted to the left by "b" units, i.e., after translation, the new coordinates become [(a - x), (b - x)].

Here, as per the above mentioned concept, a translation of T (2, -7) if applied to the point B (1, 5), the new point B' will be at \([(1+2), (5+(-7)]=[3, (-2)]\).

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Answer: D (3,-12)

Step-by-step explanation:

Answer:

5.65%

Step-by-step explanation:

Find the percent of respondents that said they had experienced depression by dividing 113 by 2000:

113/2000

= 0.0565

Multiply this by 100:

0.0565(100)

= 5.65

So, 5.65% of the respondents said they had experienced depression in the past 12 months.

Answer: The answer is C

Step-by-step explanation: This is because the equation has a greater than or equal to sign (≥). This mean that there will be a closed dot. Also, when it comes to inequalities, the sign points to where the line will be drawn, (greater than is to the right and less than is to the left), which indicates that the answer is C

Answer:

Step-by-step explanation:

The sum of the first two columns give the third column.

Find the missing values:

Account 2

Account 3

Account 4

The values of a and b are a = -3 and b = 42. The solutions for x can be written as:

x = -3 - √42

x = -3 + √42

To solve the quadratic equation 2x² + 12x = 66 by completing the square, we need to follow these steps:

Step 1: Move the constant term to the right side:

2x² + 12x - 66 = 0

Step 2: Divide the equation by the leading coefficient (2):

x² + 6x - 33 = 0

Step 3: To complete the square, we take half of the coefficient of x, square it, and add it to both sides of the equation:

x² + 6x + (6/2)² = 33 + (6/2)²

x² + 6x + 9 = 33 + 9

x² + 6x + 9 = 42

Step 4: Rewrite the left side as a perfect square:

(x + 3)² = 42

Step 5: Take the square root of both sides:

√(x + 3)² = ±√42

x + 3 = ±√42

Step 6: Solve for x:

x = -3 ± √42.

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Answer:

The answer is 1054ft³

Step-by-step explanation:

Volume of rectangular prism =1/3LWH

V=1/3×31/2×51/3×12

V=1054ft³