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mr Goodwill [35]
2 years ago
10

The equation $y = -16t^2 + 80t$ describes the height (in feet) of a projectile launched from the ground at 80 feet per second. A

t what $t$ will the projectile reach 36 feet in height for the first time? Express your answer as a decimal rounded to the nearest tenth.
Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
4 0
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Quadrilateral A′B′C′D′ is obtained by a reflection across the y-axis of quadrilateral ABCD, followed by a translation 3 units to
nlexa [21]

Let's solve this problem step by step.


FIRST. <em>Quadrilateral A′B′C′D′ is obtained by a reflection across the y-axis of quadrilateral ABCD</em>


When we reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate changes in sign. So:

(x, y) → (-x, y)


SECOND. <em>Followed by a translation 3 units to the left and 3 units down.</em>

To translate a point <em>3 units to the left</em> subtract 3 from the x-coordinate and to translate a point <em>3 units down </em>subtract 3 from the y-coordinate. Therefore, the function we are looking for is:


f(x, y) = (-x - 3, y - 3)

4 0
2 years ago
Sue Jones is insured for bodily injury in the amount of 10/20. She is at fault in an accident in which Albert Smith is injured.
lianna [129]
For this case, what you should know is that Sue Jones insurance covers half of the expenses. Equivalently, her insurance covers:
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Answer:

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A car travels 15 kilometers west in 10 minutes. After reaching the destination, the car travels back to the starting point, agai
Ugo [173]
Your answer to your question is C
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