Angle 2=3, so angle 1=4 because angles ABC & BCD equal 90°. When you add together the angles of a triangle you get 180 and if you could put angle 1 and 4 together it would look like an upward version.
That is the best way I could describe it. Hope that helps.
Answer:
Step-by-step explanation:
a) the equation representing the parabola is expressed as
h = -16t² - 4t + 20
c) to determine the height after 25 seconds, we would substitute 25 for t into the given equation. It becomes
h = -16(25)² - 4(25) + 20
h = - 10000 - 100 + 20
h = - 10080
d) when the coin lands on the ground, the height would be 0. Therefore,
-16t² - 4t + 20 = 0
Dividing both sides of the equation by 4, it becomes
- 4t² - t + 5 = 0
- 4t² - 5t + 4t + 5 = 0
- t(4t + 5) + 1(4t + 5) = 0
- t + 1 = 0 or 4t + 5 = 0
t = 1 or t = - 5/4
Since t cannot be negative, then t = 1 second
https://www.symbolab.com/solver/simplify-calculator/simplify%203%5Csqrt%7B7%7D%20-%205%5Csqrt%7B7%7D
thats the answer kid
Answer:
z = 80°
Step-by-step explanation:
ABCD ~ FECG
∠F ≅ ∠A = z
∠F = 360-100-60-120=80
z = 80°
Answer:
the awnser is -1
Step-by-step explanation:
4+(-3)=1
1+-2=-1
