Answer:
The perimeter of the first question is 62
If you draw it, you'll you'll see that it's a rectangle. The length of each side is calculated by adding the widths and heights as in the photo ( red ), and then adding them up. 13 + 18 + 13 + 18 = 62
You do the same with question 2, but this time the rectangle is smaller. (green in the photo)
So the perimeter is:
13 + 14 + 13 + 14 = 54
The answer to question 3 is (-15, -5) as drawn in the photo.
We can see that the lines intersect at: (-5,-3)
Step-by-step explanation:
Given system of equations is:

Lets convert the second equation in the same form as the first equation

Adding 3y on both sides

Dividing both sides by 3

The graph of equation can be plotted using manual graphing or any online graphing calculator
We will use the Desmos online graphing calculator to graph the equations (Picture attached)
We can see that the lines intersect at: (-5,-3)
Keywords: Graphing, linear equations
Learn more about linear equations at:
#LearnwithBrainly
Start with a proportion, to get the number of degrees in 30 seconds:
(150 degrees / 5 seconds) = ('D' degrees / 30 seconds) .
Cross multiply the proportion: (150 x 30) = 5 x D
4,500 = 5 x D
Divide each side by 5 : 900 = D
The globe turns 900 degrees in 30 seconds.
How many rotations is that ?
Each rotation is 360 degrees.
So 900 degrees is
(900 / 360) = <em>2.5 rotations</em> in 30 seconds.
The correct answer for this equation is x^4 + 6x^3 - 12x - 72<span>
You just square root the numbers in the square root sign and take away the square root. Then you simply from top to bottom. Hope this helps :D
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B.LECA
C.90^0
D.29^0
Acute is less than 90 but greater than 0.
Right angles at exactly 90 degrees