Step-by-step explanation:
Explanation:
Because
(2,6) is in the function, we can plug
6 as y
and
2 as x.
From that we get
6=a(2−1)2+k
6=a+k
Same for the next point:
12=a(3−1)2+k
12=22a+k
12=4a+k
Now we have this system of equations to solve:
a+k=6
4a+k=12
Solving it leads to the conclusion that
a=2,k=4 .
<h2>
Answer:
</h2>
20 x + 500 y cents
<h2>
Step-by-step explanation:
</h2>
20 x cents already given in question
converting 5 y dollars into cents (1 dollar=100 cents, 5 dollars =500 cents)
5 y dollars =500 y cents
20 x cents+500 y cents
20 x + 500 y cents
Answer:
no
Step-by-step explanation:
because (3,-4) does not make both equation true
Answer:
58 ft.
Step-by-step explanation:
We will use trigonometry to find the distance.
We know that he is 29 ft above the ground (26, height of building, + 3, height of bird).
We use the angle 60 and we see that we have a known side which is adjacent to the angle. The side we are trying to find is the hypotenuse. We will be using cos because cos uses adjacent and hypotenuse sides of triangle.
cos60 = 29/x
cos60x = 29
29/cos60 = x
x = 58
He must fly 58 feet in order to get to the ground.