Question

13. The age of a father is equal to the square
of
ages of his son. The sum of the ages of the father and
five times the age of the son is 66
of the son is 66 years. And their present
ages?

step by step please ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. The word telescope now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.