Answer:
b
Step-by-step explanation:
to determine which point is a solution, substitute the x-coordinate of the point into the equation and if the value is equal to the y-coordinate of the point then it is a solution.
(a) (- 1, 3)
y = (- 2 × - 1) + 4 = 2 + 4 = 6 ≠ 3 ⇒(-1, 3) is not a solution
(b) (- 2, 8)
y = (- 2 × - 2) + 4 = 4 + 4 = 8 ⇒ (- 2, 8) is a solution
(c) (0, 1)
y = 0 + 4 = 4 ≠ 1 ⇒ (0, 1) is not a solution
(d) (4, 2)
y = (2 × 4) + 4 = 8 + 4 = 12 ≠ 2 ⇒ (4, 2) is not a solution
Answer:
<u>21 niños</u>
Step-by-step explanation:
Para cada 6 niñas, hay 7 niños. Sabemos que hay 18 niñas entonces 18÷6 es 3. Ahora haces 7×3 y te da <u>21</u>.
F=½(r+6.5)
f=½r+3.25
f-3.25=½r
(f-3.25) / 2 = r
AB: endpoints (−6, −2) and (−6, 8) to A'B': endpoints at (−6, 0) and (−6, 5), centered at the (−6, 2)
a) -2
b) -1/2
c) 2
☆☆☆☆☆☆☆d) 1/2
Tan x = opposite/adjacent
tan x =28/45
tan^-1 (28/45) = 31,53