Answer:
Is there a x somewhere or is that litteraly how the equation is?
If so, -7 multiplied by 2 is -14,
-1 times -7 is 7,
add it together and you get
-7=28,
you could add 7 to both sides or subtract 28 from both sides and you'll get either 0=35 or -35=0
which would make the solution false since both sides are not the same
A. you plug in to a calculator, which will give 1840.986 so you need to round up to 1840.99. if you truncate it to .98 then he won't reach 2000 in 3 years
b. for this one if you look at the equation given to find the principle it is principle = result (1+rate) ^ -time
if you re arrange this you get result=principle (1+rate)^time
so result = 1840.99(1.028)^5
= 2113.57
240. First You divide 420 by 7 then you multiply 60 by 4.
Hope it helped!
Answer:

Step-by-step explanation:
We know by definition that the cosine is an even function, therefore

We also know that the sin is an odd function, therefore

By definition:

Then:


Using these trigonometric properties we can simplify the expression

Answer: The y intercepts would be: ( 0 , -2 ).
The x intercepts would be: ( 1 , 0 ).
Step-by-step explanation: