Answer:
D
Step-by-step explanation:
Remember, area equals width x height so you can set up this equation.
Solving for w,
Simplifying,
Thus, D is the answer
What is 9- negative 7?
1 answer:
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Answer: t = 6 s
Step-by-step explanation:
When Rose hit the water, the height of the jump is 0, so: h(t) = 0.
Resolving it, we have:
-16t² + 16t + 480 = 0
To simplify the second degree equation, divided it by 16:
-t² + t + 30 = 0
Now, solve the equation using Bhaskara:
Δ = 1² - 4. (-1) . 30
Δ = 1 + 120
Δ = 121
t =
t₁ = = - 5
t₂ = = 6
Since time can be negative, it took t = 6s for Rose to hit the water.
Answer:
see below
Step-by-step explanation:
The square root function produces a non-negative output for a non-negative input. When its output is negated, it produces a non-positive output for a non-negative input.
The input (domain) is from 0 to infinity: [0, ∞).
The output (range) is from negative infinity to zero: (-∞, 0].
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A graph of the function is included for your convenience.
