Answer:
The vertex form of the equation is
.
Step-by-step explanation:
You will use the equation
to solve this parabola. (h, k) is the vertex. So, we plug this into the equation to get
.
Then, we substitute the point as our x and y to get
(a lot of simplifying was done here). Then, add 2 to the right side of the equation and isolate the
to get
. Finally, divide by 9 on both sides to get
.
Now, substitute your
back into the equation to get y =
.
This is in vertex form. If the answer is needed in standard form, simply distribute and simplify to get
.
Answer:
100 minutes or 1 hour and 40 minutes
Step-by-step explanation:
3 miles in 30 minutes means 1 mile in 10 minutes
10 miles takes 100 minutes or 1 hour and 40 minutes.
<h3>
Answer: 23</h3>
The three angles of any triangle always add to 180, so,
z+62+95 = 180
z+157 = 180
z+157-157 = 180-157 .... subtract 157 from both sides
z = 23
As a check,
z+62+95 = 23+62+95 = 180
so the answer is confirmed.
Answer: B. -3 and 7
Step-by-step explanation:
To find the zeros, just move the constants to the other side,
x - 7 ⇒ x = 7
x + 3 ⇒ x = -3
If the number is moved to the other side its sign becomes opposite
Hope it helps!