Answer:
wait writing on a piece of paper
Answer:
axis of symmetry is x=0
vertex is (0,0)
Step-by-step
math
way is good to use it's a calculator site
Answer:
t = √(2d/a)
Step-by-step explanation:
To solve for a variable, undo the operations done to that variable, in reverse order. Here, t is squared, then multiplied by a/2.
d = (a/2)t^2
Multiply by 2/a.
2d/a = t^2
Take the square root.
t = √(2d/a)
Answer:
Answer:
(
2
,
−
1
)
Explanation:
The quickest way is to use elimination
3
x
+
4
y
=
2
+
2
x
−
4
y
=
8
−
−
−
−
−
5
x
=
10
⇒
x
=
2
Now substitute into one of the original eqns.
3
×
2
+
4
y
=
2
6
+
4
y
=
2
4
y
=
−
4
⇒
y
=
−
1
check in other eqn.
2
x
−
4
y
=
8
2
×
2
−
(
4
×
−
1
)
=
4
−
−
4
=
4
+
4
=
8
√
solns
(
2
,
−
1
)
Step-by-step explanation: