Я извиняюсь опять вопросы по математике...Тест в понедельник
![Sad :-(](./images/smilies/sad.gif)
Пока в поиске все тутора, а тест на носу...
Помогите пожалуйста разобраться...
Вот вопросы которые не можем пока понять:
1) The number of students at High School was 2400 in 2010, 2520 in 2011, 2778 in 2013. Write an exponential growth equation to model this situation. Use the model to predict the number of students in 2015.
2) does each set of ordered pairs satisfy an exponential function?
a) ((1,2), (2,6), (3,18), (4,54)
b) ((1, -2), (2,4), (-32,3), (-128,4))
3) Evaluate 32 to the power of 1/5 divided by 64 to the power of 1/3...Я думаю что будет 1/2, правильно?
4) Which regression equation represents a town with an initial population of 875 people and an annual growth rate of approximately 2%?
a) y=875 times 1.02x
b) y=875(1.02 to the power of x)
c) y=875(2 to the power of x)
d) y+=875(x to the power of 1.02)
5) Find y
1/2 ((2/5) to the power of y)=4/125
Спасибо огромное!