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3 years ago

How do i factorise this equation 25x²-p²

Mathematics

1 answer:

kondaur [170]3 years ago

6 0

You can write it in the form a^2 - b^2 where a = 5x and b = p

(5x)^2 - p^2

And then use the Difference of Squares a^2 - b^2 = (a + b)(a - b)

Answer is (5x + p)(5x - p)

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I feed to find the circumference

fgiga [73]

answer:

131.88 inches

step-by-step explanation:

know the formula: 2πr
now plug in what we have

2πr = circumference

2(21)(3.14)

= 131.88

6 0

2 years ago

Suppose you have 100 ft of string to rope off a rectangular section for a bake sale at a school Fair. The function A=x^2+50x giv

cupoosta [38]

Answer:

Therefore the width is 25 feet for getting maximum area.

The maximum area of the rectangle is 625 square feet.

Therefore the range is 0≤A≤625.

Step-by-step explanation:

Given function is

A = - x²+50x

We know that ,

If y = ax²+bx+c

For the maximum $x=-\frac{b}{2a}$

Here a = -1 , b= 50 and c=0

Therefore the width $x= -\frac{50}{2.(-1)} = 25$

Therefore the width is 25 feet for getting maximum area.

The maximum area =[ -(25)²+50.25] square feet

= 625 square feet

The area can not be negative and maximum area is 625 square feet.

Therefore the range is 0≤A≤625.

5 0

3 years ago

Please help me with number 9

Mrrafil [7]

The answer is 8 pints

8 0

3 years ago

One again i really am bad at these

Ivenika [448]

It’s 39 yards squared because the rectangle is 24+15 which is the triangle

6 0

3 years ago

Subtract the equating of 15 ÷ 3 from the sum of 33 and 7

Gnesinka [82]

$33 + 7 = 40$

$15 / 3 = 5$

Subtract the answer of the division problem from the sum of 33 and 7. Your answer would be:

40 - 5

Simplified:

7 0

3 years ago

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