Answer:
Step-by-step explanation:
Given that a flyer begins from earth and thrown up with a velocity of 30 ft/sec vertically.
u = initial velocity = 30 : a = -g = 32 ft/sec^2
s(0) =initial height =4 ft.
We have the equation
where u = initial velocity : v= final velocity : s = distance travelled and a = acceleration. Here final velocity is found out as follows
Substitute to get
Since v cannot be negative, the flyer’s center of gravity cannot ever reach 20 feet.
----------------------------------
To reach 25 ft, put s = 25
and v must be atleast 0
Then we have
Hence if thrown with initial velocity of 40 ft /sec, it will reach a height of 25 ft.
Answer:
3.4 seconds
Step-by-step explanation:
First, you have to change 20mph to feet per seconds. To do this, multiply mphs by 1.4667. When you multiply 20mph by 1.4667, you get 29.3333 fps.
Divide 100 by 29.333 to get 3.40909478 (3.4) seconds
An estimate is a guess you make by using what you already know and applying with something new.
208+569= 777
Answer:
Step-by-step explanation:
You must use the algebraic method: substitution or elimination.
I will solve a given system of equations the substitution method.
Hi there!
<h3>
m∠B = 79°</h3>
The interior angles of a trapezoid always sum up to 360° because a trapezoid is a quadrilateral, so:
360° = (8x + 7)° + (5x + 18)° + (14x - 11)° + (10x + 13)°
Combine like terms:
360° = 37x + 27
Subtract both sides by 27:
333° = 37x
Divide both sides by 37:
x = 9°
Plug in this value of x into the expression for ∠B:
8(9) + 7 = 72 + 7 = 79°
