Choose the One Alternative That Best Completes the Statement or Answers

question 412

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the
solution.
- $\left( \frac { 1 } { 2 } \right) ^ { x } = 15$

• A) {-0.26}
• B) {-7.50}
• C) {3.91}
• D) {-3.91}

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Definitions:

Ancestor

A person, plant, animal, or object from whom one is descended, typically one more remote than a grandparent, such as a great-grandparent or beyond.

Synapomorphies

Shared derived characteristics or traits that are used to group organisms together, indicating common ancestry.

Dolphins

Intelligent aquatic mammals known for their complex behaviors and communication skills, belonging to the family Delphinidae.

Mammals

Warm-blooded vertebrates characterized by the presence of mammary glands which produce milk for feeding their young, and typically possessing hair or fur.