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Kazeer [188]
3 years ago
15

How do you figure out the percent of change in a increase or decrease problem?

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0
Percent change is (original-new)/(original), then multiply by 100
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List the properties that all rectangles share
Kisachek [45]
All have a acute angle each have three sides i hope that's what your asking
6 0
3 years ago
Read 2 more answers
Solve y=-3x+5 5x-4y=-3
kirill [66]
Y = -3x + 5

   5x - 4(-3x + 5) = -3
5x + 4(3x) - 4(5) = -3
     5x + 12x - 20 = -3
             17x - 20 = -3
                   + 20 + 20
                     17x = 17
                      17     17
                         x = 1
y = -3x + 5
y = -3(1)  + 5
y = -3 + 5
y = 2
(x, y) = (1, 2)
6 0
3 years ago
Determine the maximized area of a rectangle that has a perimeter equal to 56m by creating and solving a quadratic equation. What
sveticcg [70]

Answer:

Area of rectangle = 196\,m^2

Length of rectangle = 14 m

Width of rectangle = 14 m

Step-by-step explanation:

Given:

Perimeter of rectangle is 56 m

To find: the maximized area of a rectangle and the length and width

Solution:

A function y=f(x) has a point of maxima at x=x_0 if f''(x_0)

Let x, y denotes length and width of the rectangle.

Perimeter of rectangle = 2( length + width )

=2(x+y)

Also, perimeter of rectangle is equal to 56 m.

So,

56=2(x+y)\\x+y=28\\y=28-x

Let A denotes area of rectangle.

A = length × width

A=xy\\=x(28-x)\\=28x-x^2

Differentiate with respect to x

\frac{dA}{dx}=28-2x

Put \frac{dA}{dx}=0

28-2x=0\\2x=28\\x=14

Also,

\frac{d^2A}{dx^2}=-2

At x = 14, \frac{d^2A}{dx^2}=-2

So, x = 14 is a point of maxima

So,

y=28-x=28-14=14

Area of rectangle:

A=xy=14(14)=196\,m^2

Length of rectangle = 14 m

Width of rectangle = 14 m

5 0
3 years ago
when 256 is multiplied by a positive power of 10 number of zeros in the product is related to the power of 10 explain how the nu
Anna [14]

Answer:

If you multiply 256 by 10 powered by k, then the number of zeros in the product is k

Step-by-step explanation:

Let x be any integer, if you multiply x by 10 you will have to add one zero at the right of x. If you multiply by 10 again, you will have to add a second zero at the right, thus if you multiply by 100, you will have to add 2 zeros. If you multiply by 1000 = 10*10*10 = 10³ you will have to add 3 zeros and so on.

Therefore, if you multiply 256 by 10^k, then you will have to add k zeros to 256, and as a consequence, the amount of zeros in the product is equal to the power of 10 we are multiplying.

7 0
2 years ago
List the angles in order from smallest to largest. show your work.​
hjlf

Answer:

  • ∠R, ∠P, ∠Q

Step-by-step explanation:

The greater side has greater angle opposite

<u>Sides in ascending order:</u>

  • 17, 21, 26

<u>Angles in ascending order:</u>

  • ∠R, ∠P, ∠Q
3 0
3 years ago
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