How do i find the rest of the angles and sides in a right angle triangle if i only have 90 degrees

Which of the following is true for the relation f(x)=2x^2+1

Write the fraction or mixed number and the decimal shown by the model

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.