Answer:
if it's asking to simplify the expression: -13k + 15
Step-by-step explanation:
-7k + 3(-2k + 5)
-7k -6k + 15
-13k + 15
Answer:
y=3
Step-by-step explanation:
Subtract 30 from both sides
-5y+30=15
-5y=-15
Divide by -5 on both sides
y=3
Hope this helps! :)
Answer:
<h2>440 square units</h2>
Step-by-step explanation:
We can find half of a side of the pentagon with the expression
Because, as a regular polygon, all its sectors have the same central angle, and the apothem divides equally each sector in two equal parts.
Therefore, half of a side is 8 units long, which means each side measures 16 units.
Now, the area of a penthagon is defined by
Where is the perimeter and is the apothem. Where the perimeter is the sum of all sides, which is 80 units.
Therefore, the right answer is the second choice.
Answer: √32
Step-by-step explanation: so the displacement is north 4 and west 4 and it becomes a right triangle so the hypotenuse is the distance for segment AB
So Drawn out should like straight lines up,down,left,and right. So east is positive while west is negative same for North(+) and South(-)
I recommend sticking with 2 directions first. Starting with north and south right. First you go south 1 mile but then you go north 5miles in math terms
-1+5=4 or down one is one less than 5
Same for east and west. 3+-7 = -4
So we went positive 4 miles up and 4miles to the left
So (-4)^2+4^2= hypotenuse or AB segment in this case