The value of x from the given expression is 5/6
<h3>Expansion of equation</h3>
Given the expression to expand expressed as:
15 = 3/5(6x + 20)
We are to determine the value of x
15(5) = 3(6x + 20)
Expand
75 = 18x +60
Collect like terms
18x = 75 - 60
18x = 15
x = 15/18
x = 5/6
Hence the value of x from the given expression is 5/6
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Answer:
Step-by-step explanation:
1) if the given sequence is 9;5;1;-3, then a₁=9; a₂=5; a₃=1 and a₄=-3 and
2) the difference is -4.
3) if the difference is -4, then the correct answer is A: aₙ=aₙ₋₁ - 4.
Answer:
approximately 1.58 seconds
Step-by-step explanation:
Set the function h(t)= -16t^2 + 40 = to 0 (the height above the ground when the ball hits). Then solve h(t)= -16t^2 + 40 = 0 for time (t):
-16t^2 + 40 = 0 becomes 16t^2 = 40. Solving for t^2: t^2 = 40/16 = 5/2.
Finally, we take the square root of this last result to determine t:
t = sqrt(10/4) = (1/2)sqrt(10)
The car hits the ground after (1/2)sqrt(10) seconds, or approximately 1.58 seconds.
