98 playground balls in each shipment each ball costs 2.00 what is the total cost of playground balls in three shipments

A trapezoid has height h which equals rad 36 cm. One base is 3 red 6. The other bas is 3 red 54. Find the area of the trapezoid

Aleonysh [2.5K]

Answer:

Area of the trapezoid = 36√6 cm²

Step-by-step explanation:

Area of the trapezoid = height ( base1+ base2/2)

height = √36

base1= 3√6

base 2= 3√54

Putting the values in the formula

Area of the trapezoid = height ( base1+ base2/2)

= √36 ( 3√6+3√54/2)

= 6 ( 3√6+3√6*9/2) Factoring

= 6 ( 3√6+3*3√6/2) Multiplying

= 6 ( 3√6+9√6/2) adding

= 6 ( 12√6/2)

= 6 ( 6√6)

= 36√6 cm²

8 0

3 years ago

Sylvie finds the solution to the system of equations by graphing.

Softa [21]

Answer:

The correct answer is:

A coordinate grid with 2 lines. The first line passes through the points (negative 1.5, 0), (0, negative 1), and (3, negative 3). The second line passes through the points (negative 1.5, 0), (0, 1), and (3, 3).

Step-by-step explanation:

We are given the system of equations as:

$1.\ y=-\dfrac{2}{3}x-1\\2.\ y=\dfrac{2}{3}x+1\\$

We have 2 equations here with variables x and y so we use coordinate grid with 2 lines having axis as x and y.

As per the given options, we can see that coordinate of one point has y = 0 and other point has x = 0.

So, let us put y = 0 and x =0, in both the equations one by one and have a look at the value of x coordinate.

y = 0, Equation (1) becomes:

$0=-\dfrac{2}{3}x-1\\\Rightarrow 1 =-\dfrac{2}{3}x\\\Rightarrow x = - 1.5$

So, one coordinate is (-1.5, 0)

x = 0, Equation (1) becomes:

$y=-\dfrac{2}{3}\times 0-1\\\Rightarrow y =-1$

So, other coordinate is (0, -1)

And the point (3, -3) also satisfies the given equation.

y = 0, Equation (2) becomes:

$0=\dfrac{2}{3}x+1\\\Rightarrow 1 =-\dfrac{2}{3}x\\\Rightarrow x = - 1.5$

So, one coordinate is (-1.5, 0)

x = 0, Equation (2) becomes:

$y=\dfrac{2}{3}\times 0+1\\\Rightarrow y =1$

So, other coordinate is (0, 1)

And the point (3, 3) also satisfies the given equation.

Please refer to the attached graph and points on lines.

So, correct answer is:

A coordinate grid with 2 lines. The first line passes through the points (negative 1.5, 0), (0, negative 1), and (3, negative 3). The second line passes through the points (negative 1.5, 0), (0, 1), and (3, 3).