Step-by-step explanation:
Since the x-intercepts are -20 and 40, the line of symmetry is x = (-20 + 40)/2 = 10.
Now we have y = a(x - 10)² + 30, where a is an unknown constant. We can find a by using an x-intercept point.
=> (0) = a[(40) - 10]² + 30
=> 900a + 30 = 0, a = -1/30.
Hence the rule is y = -(x - 10)²/30 + 30.
Answer:
1271 cm
Step-by-step explanation:
Because the base is 62 and the height is 41.
Answer is (d).
Let's take the constant as K.
y=K. (1/x)
K = yx
K = (-16) x (-64)
K = 1024
Answer:
59 yards
Step-by-step explanation:
100ft=33 yards
20ft=6 yards
60ft=20 yards
33+6+20=59