How to compute the area of a circle

Answers

Answer 1
Answer:

Answer:

A = \pi r^2

Step-by-step explanation:

Area of a circle =

\pi * r^2\n\n=\pi r^2

Area of a circle can also be calculated with ;

1. Using Radius to Find Area

2. Calculating Area from the Diameter

3. Using Circumference to Calculate Area

4. Finding Area from a Sector of the circle.


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The expression 9/2 = 3 is the same asА
9/2 x3
B
9/2 x 3/2
с
9/2 x 1/3
D
2/9 = 3

Answers

The answer is C 9/2 x 1/3

Find the general solution of the following equation. Express the solution explicitly as a function of the independent variable. x^2 dw/dx = √ w(2x+5)

Answers

Answer:

Therefore the general solution is

2 \sqrt w = 2 ln(x) - 5 \frac1x +c

Step-by-step explanation:

Integration Rule:

  1. \int x^n dx= (x^(n+1))/(n+1)+c
  2. \int \frac1x dx= ln(x) +c

Given differential equation is

x^2 (dw)/(dx)= √(w)(2x+5)

\Rightarrow x^2 dw= √(w) (2x+5) dx    [ multiplying dx both sides]

\Rightarrow (dw)/(\sqrt w)= ((2x+5))/(x^2) dx                [ dividing x^2\sqrt w both sides]

Integrating both sides

\int (dw)/(\sqrt w)=\int ((2x+5))/(x^2) dx

\Rightarrow \int w^(-\frac12) dw=\int ((2x)/(x^2)+(5)/(x^2) )dx

\Rightarrow \int w^(-\frac12) dw=\int (2)/(x)dx +\int(5)/(x^2) dx

\Rightarrow (w^(-\frac12+1))/(-\frac12+1) =2ln x+5 (x^(-2+1))/(-2+1)+c   [ c is arbitrary constant]

\Rightarrow 2 \sqrt w = 2 ln(x) - 5 \frac1x +c

Therefore the general solution is

2 \sqrt w = 2 ln(x) - 5 \frac1x +c

I don’t know what answer to put for increasing and decreasing.

Answers

Answer:

Increasing: (2, ∞) Decreasing: (-∞,2)

Step-by-step explanation:

Think of the parabola (just for visualization purposes) as the direction of a rubber ball being thrown from above. The ball starts to decrease in position, eventually hitting the ground, and then starts to increase back to the orginal height and beyond.

So, because parabolas extend infinitely in both the positive and negative direction, we can use intervals to express the parts of the graph where it increases and decreased.


The minimum value point, or vertex is the point where the parabola changes direction. The vertex is visibly at (2,-4). So, the interval for decreasing would be (-∞,2) and increasing would be (2,∞)

Note: We use the symbol "[" to indicate that a value is included in the interval.

Because infinity is a concept and not a number, we have to use the non-inclusive version of it: "(" (simple parentheses) to indicate that infinity is NOT included in the interval, but it simply keeps extending in both directions.

I hope this helps you out.

Find the constant of proportionality (unit rate) for each set of valuesprofit per shirt sold
shirts: 5 10 15
profit: $7.50 $15.00 22.50

Answers

Answer:

$1.50

Step-by-step explanation:

To find the unit rate, we can divide the number of shirts to the profit that was made to find the unit cost per shirt.

7.50 / 5 = $1.50

15 / 10 = $1.50

22.50 / 15 = $1.50

Best of Luck!

Answer: 1.5

Step-by-step explanation:

7.50/5 = 1.5

15/10 = 1.5

22.50/15 = 1.5

Need answer now in 10 min!!!

Answers

Answer:

40 deg

Step-by-step explanation:

The vertical sides of the rectangle are parallel, so the triangle is a right triangle.

The triangle is a right triangle, so the acute angles are complementary.

The bottom right angle of the triangle measures 90 - 50 = 40 deg.

The bottom line and the top side of the rectangle are parallel, so corresponding angles are congruent. x and the 40-deg angle are corresponding angles, so they are congruent.

x = 40 deg.

Hello, there are three questions and pictures of them in the links If you could solve them that would be awesome, thank you!

Answers

Answer:

1.  1 * x^(3/6) = x^(3/6) (it will be equal to the sixth root of x cube)

2.  No, the expression x^(3) X x^(3) X x^(3) will be equal to x^(3 + 3 + 3 ) since the powers of      numbers with the same base are added

3. B and D   1/x^(-1) is the same as 'x'

as mentioned in the last answer, powers of numbers with same base are added. hence, option D will be x^(3/3) which will be equal to x