First you need to find the area of the park which would be 4.0 x 4.6 = 18.4 km^2
Then you divide that area by 8 which would be 18.4 / 8 = 2.3 km^2 for each section.
Your answer would be 2.3 km^2.
9514 1404 393
Answer:
r = ±√47
Step-by-step explanation:
-7r^2 = -329 . . . . given
r^2 = 47 . . . . . divide both sides by -7 (multiplication property of equality)
r = ±√47 . . . . square root both sides (square root property of equality)
Answer:
Step-by-step explanation:
In ΔXYZ and ΔZWX,
∠WXZ ≅ ∠YZX [Given]
∠XZW ≅ ∠ZXY [Given]
XZ ≅ XZ [Reflexive property]
Since, two corresponding angles and the included side of two triangles are equal,
ΔXYZ ≅ ΔZWX [ASA postulate of congruence]
Answer: 9 seconds
Step-by-step explanation:
When the object hit the ground,
Height h = 0
Therefore,
h(x)= -5(x+1)(x-9) = 0
0 = -5(x+1)(x-9)
Open the bracket
0 = (-5x - 5)( x - 9)
0 = -5x^2 + 45x - 5x + 45
0 = -5x^2 + 40x + 45
Divide all by -5
0 = x^2 - 8x - 9
Factorizing the equation gives
(x + 1)(x- 9)
x = -1 or 9
Since Time can't be negative
Therefore, the time seconds after launch the object will hit the ground is 9 seconds
To calculate slope; rise/run
Triangle ABC: run-1 rise-5 slope-5
5 rise/ 1 run (5/1)=5
Triangle DEF: run-2 rise 10 slope-5
10 rise/ 2 run (10/2)=5
B. They are equal because the two triangles are similar