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juin [17]
3 years ago
11

Factor out each polynomial 25x^2 - 1

Mathematics
1 answer:
agasfer [191]3 years ago
8 0
(5x+1)(5x-1) tell me if you want to know how to do this problem :)
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A Rancher wants to enclose 2 rectangular area near a river, one for sheep and one for cattle. There is 240 yd. of fencing availa
AlexFokin [52]
Assuming the rectangles made will be of the same size:
Perimeter = 2(l + b)
For two rectangles,
Perimeter = 2 x 2(l + b)
240 = 4(l + b)
l + b = 60
l = 60 - b
Area = l x b
Area = 60b - b²
dA/db = 60 - 2b
Putting dA/db = 0
b = 30
Length = 60 - 30 = 30
Greatest available area of one triangle = 30 x 30
= 900 sq yd
Greatest total area that can be enclosed in both triangels
= 900 x 2
= 1800 sq yd
4 0
3 years ago
WILL MARK BRAINLIEST!!! NEED QUICKLY <br> Look at attachment
Nastasia [14]

Answer:

v = 25

Step-by-step explanation:

The crucial information you need to know to solve this is to realize that HI and GH are the same length. However, why they are equal is not immediately obvious.

Both sides of the middle line (HF) are symmetrical, since G and I are the same distance away from the line, and they both lie on a line perpendicular to the middle line.

Note: we know they're the same distance away due to the small red marks in the lines, indicating that they're the same length.

The angles at G and I in the triangles are also the same, as the lines from G and I both meet at H. If they were different angles, they would each hit a different point on the middle line.

Thus, we can conclude that GH and HI are the same length.

Since we know the following:

GH = 4v - 75

HI = v

We can set GH and HI equal to each other and solve the equation.

4v - 75 = v

Subtract v from both sides:

3v - 75 = 0

Add 75 to both sides:

3v = 75

Divide both sides by 3:

v = 25

Answer: v = 25

5 0
2 years ago
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A photographer made a 5-inch by 8-inch print of a photo. He then made a 10-inch by 16-inch print of the same photo. Which scale
GREYUIT [131]

Answer:

A.

Step-by-step explanation:

5x8 enlarged to 10x16

10 is 5x2 and 16 is 8x2

7 0
2 years ago
What is the absolute value of -5/8?
Gemiola [76]

well, -5/8 is -0.625.

the absolute value of -0.625 is 0.625.

and abs value of -5/8 is 5/8

7 0
3 years ago
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PLease ANSWER You get 30 points On your math quiz, you earn 5 points for each question that you answer correctly. In the table b
Mamont248 [21]
The total number of points scored on the test woukd be 200. the independent variable would be x, or the number of questions answered correctly. the dependent would be the points scored because the points scored depends on how good you did on the test.
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2 years ago
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