Answer:
-2
Step-by-step explanation:
The range of the fizgig is -∞ to +∞. The range of the whatzit is -3 ≤ y < ∞. That is, both creatures pass through all y-values between -3 and +∞.
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Perhaps you want the y-coordinate of a point that both creatures pass through. The point of intersection is found where both equations are satisfied:
2x -4 = y = x^2 -3
x^2 -2x +1 = 0
(x -1)^2 = 0
x = 1
The value of y at that point is ...
y = 2x -4 = 2(1) -4 = -2
The y-coordinate of the point both creatures pass through is -2.
Answer:
Wyatt I'm pretty sure so D
Step-by-step explanation:
Answer:
3k - 12
Step-by-step explanation:
triple the kids (k) would be 3
so 3k to show 3 x k for triple.
once it started raining, 12 kids left. so that would be -12
so 3k - 12
You would have to find the height.
To do this, you cut the triangle from the upper vertex to the base to create two new triangles.
Then you use the Law of Cosines. You could use the google calculator for this by searching “law of cosines calculator” and inputting the values, but in case of a test, the formula is a^2 = b^2 + c^2 - 2bc cosA
If you could provide an example of a triangle, I will gladly help you with the steps! Hope this helped!
Answer:
The initial speed is approximately 104.3 km
Step-by-step explanation:
Let Distance = 240 km
Time = ?
Speed =
Since
Speed = Distance/Time
Distance = Speed × Time
When arrival is late:
240 = S×T
When arrival is on time:
240 = (S+5)×T2
But 40minutes = 2/3 hours
So,
T2 = T - 2/3
240 = (S+5)×(T - 2/3)
240 = ST - 2S/3 + 5T - 10/3
ST - 2S/3 + 5T = 240 + 10/3
S(T - 2/3) + 5T = 730/3
S(T - 2/3) = 730/3 - 5T
S = (730/3 - 5T)/(T - 2/3)
But 240 = ST
S = 240/T
240/T = (730/3 - 5T)/(T - 2/3)
(T - 2/3)/T = (730/3 - 5T)/240
1 - 2/3T = 730/720 - 5T/240
1 + 73/72 = (2/3 + 5/24)T
145/72 = (7/8)T
T = 145/72 × 8/7
= 1160/504
T = 145/63
S = 240/S
= 240×63/145
= 3024/29
≈ 104.3km