Answer:
The PERIMETER P is the distance around the rectangle.
Let's call the width of the rectangle W and the length of the rectangle L.
As you go around the edge there two equal lengths and two equal widths.
The formula for the perimeter of a rectangle is P=2*L+2*W.
P=2L%2B2W
Substitute 290 for P and 62 for the width.
290=2L%2B2%2862%29
Solve for L.
290=2L%2B2%2862%29
290=2L%2B124
290-124=2L
2L=166
L=83
The equation L=83 means that the length is 83 cm.
CHECK your work.
2(62)+2(83) = 124+166 = 290cm.
The length of the rectangle is 83cm.
Answer:
I think it's the second one, but not 100% sure
Step-by-step explanation:
Answer:
<h2><u><em>
9</em></u></h2>
Step-by-step explanation:
the mean is 6 (write on the picture)
so
(7 + 3 + 5 + x) : 4 = 6
(15 + x) : 4 = 6
15 + x = 24
x = 24 - 15
<u><em>x = 9</em></u>
<u><em>--------------------------------</em></u>
check
(7 + 3 + 5 + 9) : 4 = 6
24 : 4 = 6
6 = 6
the answer is good
Answer:
Step-by-step explanation:
2) a) You have to find the area of semicircle.
r = d/2 = 12/2 = 6 mm
Area of semicircle =
b) r = 10 cm
Area of quadrant =
3) d = 10 m
r = d/2 = 10/2 = 5 m
Area of circular garden = πr²
= 3.14 * 5 * 5
= 78.5 m²
Area of rectangular pool = 8 * 6 = 48 m²
Area of the garden covered in grass = area of the circular garden - area of pool
= 78.5 - 48
= 30.5 m²
4) a) r = 60 cm
Area of the top of the circular table = πr²
= 3.14 * 60 * 60
= 11304 cm²
diameter of base = 30 cm
r = 30/2 = 15 cm
Area of circular base = 3.14 * 15 * 15
= 706.5 cm²
The system has one solution because the slopes are different. TO solve...
5x - 6y = -25
4x - 3y = -20, multiply this equation by -2
5x - 6y = -25
-8x + 6y = 40, now use combination to get
-3x = 15, so x = -5. Now plug this back into either original equation to get
5*(-5) - 6y = -25
-6y = 0, so y = 0, so the solution is (-5,0)