Determine What Signs on Values of X and Y Would $\mathrm { H }$

question 261

Multiple Choice

Determine what signs on values of x and y would make the statement true. Assume that x and y are not 0.
-If a rock falls from a height of 70 meters above the ground, the height $\mathrm { H }$ (in meters) after $x$ seconds can be approximated using the formula $\mathrm { H } = 70 - 4.9 \mathrm { x } ^ { 2 }$ . What is the height of the rock after 2 seconds?

• A) \(60.2 \mathrm {~m}\)
• B) \(50.4 \mathrm {~m}\)
• C) \(260.4 \mathrm {~m}\)
• D) \(- 26.04 \mathrm {~m}\)

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Definitions:

Surface Representing

Typically refers to a graphical or mathematical representation of the physical characteristics or topography of an area's surface.

Ancient Erosion Surface

Old landforms shaped by the long-term removal of soil and rock by water, wind, or ice, representing past eras of earth's history.

Paleozoic Sandstone

A sedimentary rock formed during the Paleozoic era, characterized by grains of sand consolidated with some form of cement.

Precambrian Granite

A type of ancient granite rock that formed during the Precambrian era, over 541 million years ago.