Step-by-step explanation:
Given the height of the rocket y in feet related to time after launch x related by the equation:
Y=-16x^2+189x+79
The rocket will hit the ground when y = 0
The equation will become:
0=-16x^2+189x+79
Rearrange
-16x^2+189x+79 = 0
multiply though by minus
16x^2-189x-79 = 0
Factorize and solve for x:
x = 189±√189²-4(16)(-79)/2(16)
x = 189±√35721+5056/32
x = 189±√40777/32
x = 189±201.93/32
x = 189+201.93/32
x = 390.93/32
x = 12.22secs
hence the rocket will hit the ground after 12.22seconds (to the nearest hundredth of a sec)
It’s 19 but i’m guessing u want ppl to say 21
Answer:
4x^2y^4
Step-by-step explanation:
Factors of
4={1,2,4}
20={1,2,4,5,10,20}
Common factors:
1,2,4
4 is greater than 1 and 2
In terms of terms we will take terms with greater variables.
xy^2 x^2y^4
x^2y^4
Hope this helps ;) ❤❤❤
Answer:
The answer is option A.
Step-by-step explanation:
To find the length of AB we use sine
sin∅ = opposite / hypotenuse
From the question
AB is the hypotenuse
AC is the opposite
sin 36 = AC / AB
sin 36 = 20/ AB
AB = 20 / sin 36
AB = 34.026
<h3>AB is 34 to the nearest tenth</h3>
Hope this helps you
