Answer:
Step-by-step explanation:
Use ratios to find x and y, then find AB and GH, them sum up the lengths.
<u>Find x:</u>
- 12/15 = x/10
- x = 12*10/15
- x = 8 in
<u>Find y:</u>
- 12/15 = 16/y
- y = 15*16/12
- y = 20 in
<u>Find AB:</u>
<u>Find GH:</u>
<u>Find the perimeter:</u>
- P = 6 + 15 + 20 + 10 + 37 + 8 + 16 + 12 = 124 in
Answer:
29
Step-by-step explanation:
4 - 25i^2
4 - 25x(-1)
4 + 25 = 29
the ^2 means exponent 2
A nonagon has 9 sides, so n = 9
S = sum of the interior angles
S = 180*(n-2)
S = 180*(9-2)
S = 180*7
S = 1260
Answer is choice B
Answer:
(1,6) & (7,0)
Step-by-step explanation:
y = -x + 7
y = -0.5(x - 3)² + 8
To solve the system, solve these two equations simultaneously
-x + 7 = -0.5(x - 3)² + 8
-x + 7 = -0.5(x² - 6x + 9) + 8
-x + 7 = -0.5x² + 3x - 4.5 + 8
0.5x² - 4x + 3.5 = 0
x² - 8x + 7 = 0
x² - 7x - x + 7 = 0
x(x - 7) - (x - 7) = 0
(x - 1)(x - 7) = 0
x = 1, 7
y = -1 + 7 = 6
y = -7 + 7 = 0
(1,6) (7,0)
Since the system has two distinct solutions, the line and the curve meet at two distinct poibts9: (1,6) & (7,0)
