MATHEMATICS HIGH SCHOOL

F (x + 3)2 = 42, what is the approximate positive value of x? 0.48
3.48
5.48
6.48

Answers

Answer 1
Answer:

Answer:

3.48

Step-by-step explanation:

I took the test.

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A rectangular field has an area of 1,764 m2. The width of the field is 13 m more than the length. What is the perimeter of the field?

Find any real solutions for the following equations

x3 = - 64

Answers

Hello,

x^3+64=0
==>(x+4)(x²-4x+16)=0
==>x=-4 because x²-4x+16 is not factorable in R.

Calculators are sold to students for $20 each. 300 students are willing to buy them for that price. For each five dollars increase in price, there are 30 fewer students that are willing to buy the calculator. a. what selling price will produce the maximum revenue?

b. what will the maximum revenue be?

Answers

Answer:

a) 40$ b) 7600

Step-by-step explanation:

In my opinion, the best way to go about this is to simply start by doing 20×300, 25×270, 30×240, etc. Once I reached 40, I realized that my revenue was going down after it, so I saw that a 40 dollar starting price would being in more money. 40×190 - (the amount of students who will buy at that price) equals 7600, which will be your maximum revenue. I hope i could help, good luck.

Find the surface area of a sphere with a radius of 2√2 feet.94.5 square feet
100.5 square feet
25.1 square feet
35.5 square feet

Answers

Answer: 100.5 square feet

Step-by-step explanation:

To find : surface area of sphere with radius of 2√(2)feet

The formula used to calculate surface area of sphere is = 4* \pi* r^2

where r is the radius of sphere.

Putting the values we get:

surface area of sphere = 4* 3.14* (2√(2)feet)^2=100.5square feet

Thus the surface area of a sphere with a radius of 2√2 feet is 100.5 square feet

Answer:

100.5 square ft

Step-by-step explanation:

For the given 4×4 gray level image below: Filter the image by a) 3×3 average filter using zero padding b) Laplacian filter with the given mask w d
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1
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0
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Answers

Answer:

Step-by-step explanation:

a) To filter the given 4x4 gray level image with a 3x3 average filter using zero padding, follow these steps:

1. Apply zero padding to the image by adding an extra layer of zeros around the edges. This ensures that the filter can be applied to all pixels, including those at the image borders.

2. Place the 3x3 average filter over each pixel in the image, centered on that pixel.

3. Multiply the corresponding filter coefficients with the pixel values within the filter region and sum them up.

4. Divide the sum by the total number of coefficients in the filter (which is 3x3 = 9 in this case) to get the average value.

5. Replace the original pixel value with the computed average value.

6. Repeat steps 2-5 for all pixels in the image.

b) To filter the given 4x4 gray level image with the Laplacian filter using the given mask:

1. Place the Laplacian filter mask over each pixel in the image, centered on that pixel.

2. Multiply the corresponding mask coefficients with the pixel values within the filter region and sum them up.

3. Replace the original pixel value with the computed sum.

4. Repeat steps 1-3 for all pixels in the image.

The resulting image will be the filtered output, where each pixel has been modified according to the chosen filter method.

According to the EPA, about 40 million U.S. tons of hazardous waste is produced each year. If individual household waste makes up 1.6 million tons of this waste, what percent of the total hazardous amount produced is household waste? A. 0.04% B. 0.03% C. 0.25% D. 2.5% E. 4%

Answers

Answer:

C.0.25%

Step-by-step explanation:

40/1.6=25

Then convert to percentage value by moving the decimal 2 places to the left.

25 turns into 0.25.

A small fountain holds 38 gallons of water in 4 equal-sized sections. How many gallons of water are in each section?Choose all answers that are correct.



A. 38/4




B. 9 2/4




C. 9 1/2




D. 9

Answers

A 38/4
B 9 2/4
C 9 1/2
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New refrigerator costs $3,250 and it was on sale 20% off. How much would you save if you buy it on sale?