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2 years ago

What is 5 and 1/2 divided by 1/2 step by step ?? It would mean a lot!

Mathematics

1 answer:

dimulka [17.4K]2 years ago

4 0

Answer:

Step-by-step explanation:

Use a calculator. Punch in 5.5, then use the divide symbol (÷) and finally put in 0.5, then you will get 11 as your final answer.

Hope this helps!

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Find the standard form of the equation of the circle with endpoints of a diameter at the points (3,8) and (-7,2)

poizon [28]

$(x+2)^{2}$ + $(y-5)^{2}$ = 34

The equation of a circle in standard form is

$(x-a)^{2}$ + $(y-b)^{2}$ = $r^{2}$

where (a , b) are the coordinates of the centre and r is the radius

The centre is at the midpoint of the endpoints and the radius is the distance from the centre to either of the 2 endpoints

Using the midpoint formula

midpoint = [ $\frac{1}{2}$ (x $x_{1}$ + $x_{2}$ , $\frac{1}{2}$ ( $y_{1}$ + $y_{2}$

where ( $x_{1}$ , $y_{1}$ =(3,8) and ( $x_{2}$ , $y_{2}$ =(-7,2)

centre = ( $\frac{1}{2}$ (3-7), $\frac{1}{2}$ (8+2)) = (-2,5)

Calculate r using the distance formula

r = √( $x_{2}$ - $x_{1}$ )²+( $y_{2}$ - $y_{1}$ )²)

= √((3+2)²+(8-5)²) = √(25+9) = √34 ⇒ r² =(√34)² = 34

equation of circle is : (x+2)²+(y-5)² = 34

8 0

3 years ago

I need help on number 16

ollegr [7]

There will be two squares.

Think about it: The shorter side is 3.5 feet. The longer side is 7 feet. If he cuts it in half on the longer side, he's taking the length of that longer side, and dividing it by 2. 7/2=3.5.

So, you'd have two squares, both with a length and width of 3.5 feet.

5 0

2 years ago

The price p in dollars and the quantity x sold of a certain product obey the demand equation -1/5x+100 (0≤ x ≤ 500)

olga nikolaevna [1]

Answer:

See below

Step-by-step explanation:

We have:

p = -1/5x + 100 = -0.2x + 100

a) The revenue is:

R = px
R = x( -0.2x + 100)
R= -0.2x² + 100x

b) x = 200, find R:

R = -0.2(200²) + 100(200) = 12000

c) This is a quadratic function and the maximum value is obtained at vertex.

x = -100/(-0.2*2) = 250 is the required quantity

d) The max revenue is obtained when -0.2x + 100 at max:

The maximum possible is p = 100 when x = 0

5 0

2 years ago

Read 2 more answers

Is -3/4 rational or irrational

vovangra [49]

Answer:

Rational

Step-by-step explanation:

The fraction -3/4 can be written as a ratio, and is a finite amount, making it rational.

7 0

2 years ago

Read 2 more answers

The sum of three numbers is 69. The second number is 6 less than the first. The third number is 3 times the first. What are the

almond37 [142]

Answer and Step-by-step explanation:

To solve, we would set the first number to x, and make an equation.

Solve for x.

x + (x - 6) + 3x = 69.

Add and combine like terms.

2x + 3x - 6 = 69

5x - 6 = 69

Add 6 to each side of the equation.

5x = 75

Divide by 5 to both sides.

x = 15

The first number is 15.

The second number is (x - 6) = (15 - 6) = 9.

The third number is 3x = 3(15) = 45.

#teamtrees #PAW (Plant And Water)

7 0

2 years ago