exam Maths Puzzle Numerical Ability

Please help me solve the problem;

Find the measure of the acute angle that the line y=2/3x +2 makes with a horizontal line. Round the answer to the nearest tenth.

Appreciate your help. Thanks

Rupert

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exam Other Question

Find the product or quotient. Write the answer using exponents.

31. b^4 x b

Any help with this problem would be GREATLY</b> appreciated:) thank you for help
Given {{{f(x)=2x^6+5x^4-x^3-5x-1}}}
a)find and list the possible rational zeros
b)indicate how many positive and negative zeros are possible
c)Use synthetic