9.2% written as a decimal is

Associative property of (21)(7)(3x) ? <br> PLEASE HELPPPP <br> 40 PTS!!!!

sdas [7]

Ehh, now it's letting me answer.

So the associative property is basically as long as it's addition or multiplication, you can move around the groupings and it will still be the same.

For example, you can say:(21 * 7) (3x) instead of (21)(7)(3x)

And it would be equal to the old version.

(To answer your other question, the commutative property is you can move around all the parts of the equation as long as it's addition or multiplication.)

So basically, it would be the first one you sent me.

3 0

3 years ago

Read 2 more answers

76/135 in simplest form

malfutka [58]

Already in simplest form (0.562963)

8 0

3 years ago

Determine the slope and y-intercept of the graph:<br> 2x + 5y = 10

FinnZ [79.3K]

Slope is -2/5 and y-intercept is 2

Step-by-step explanation:

Step 1: Write the equation in slope-intercept form y = mx + b

2x + 5y = 10

5y = -2x + 10

y = -2/5 x + 10/5

y = -2/5 x + 2

Step 2: Find the slope and y-intercept from the equation.

Slope, m = -2/5

y-intercept, b = 2

6 0

3 years ago

Reggie read a 400 page book. In 5 days .On the first day , he read 120 pages . each day after that , he read the same number. Of

forsale [732]

400x5 divided by 120

4 0

3 years ago

Find the perimeter and the area of each shape. Give your answer as a completely simplified exact value in terms of π (no approxi

nydimaria [60]

Answer:

Circumference: 12π + 8 cm,

Area: 48 ( cm )^2

Step-by-step explanation:

This figure is composed of circles, squares, and semicircles. As you can see, the squares indicate that each semicircle should have ( 1 ) the same area, and ( 2 ) the same length ( circumference ). It would be easier to take the circumference of the figure first, as it is composed of arcs part of semicircles the same length.

Circumference of 1 semicircle = $\frac{1}{2}$ ( πd ) = $\frac{1}{2}$ π( 4 ) = 2π ( cm )

Circumference of Figure (composed of 6 semicircles + 2 sides of a square),

We know that 6 semicircles should be 6 $*$ 2π, and as the sides of a square are equal - if one side is 4 cm, the other 3 are 4 cm as well. Therefore the " 2 sides of a square " should be 2

Circumference of Figure = 6 $*$ 2π + 2 = 12π + 8 ( cm )

_____________

The area of this figure is our next target. As you can see, it is composed of 3 semicircles, and the area of 3 semicircles subtracted from the area of 3 squares. Therefore, let us calculate the area of 1 semicircle, and the area of 1 square first.

Area of 1 semicircle = 1/2π $r^2$ = 1/2π $(2)^2$ = 2π ( cm ),

Area of 1 square = ( 4 cm )( 4 cm ) = 16 ( $cm^2$ )

So, the area of the figure should be the following -

Area of Figure = 3 $*$ 2π + 3( 16 - 2π ) = 48 ( cm )^2

3 0

3 years ago