Answer:
sure
Step-by-step explanation:
she multiplied it 3 times, so, i dont think 8 should be negative.
The correct equation should look something like this:
y= -1x - 2
Consider the equation for a line:
y = mx + b,
Where ‘m’ is the slope
Where ‘b’ is the y-intercept.
From there you can plug in your known values for ‘m’ and ‘b’, and get the equation above. If you are still not convinced, I suggest you graph the function and observe its slope and y-intercept.
Hope this helps!
Answer:
30
Step-by-step explanation:
is going to output a number in between 
and 
.
Luckily you are looking for 
in the 1st quadrant which is contained in the given interval above, so the answer just comes down to what the calculator returns from entering 
in your calculator.
You may also use the unit circle. sine value refers to the y-coordinate on there.
So you are looking for when the y-coordinate is 1/2 in the fist quadrant which is at 30 degrees.
Answer:
9
Step-by-step explanation:
Given
x² - 6x = 5
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 3)x + 9 = 5 + 9, that is
(x - 3)² = 14
To find the cost per week, divide the total cost by how many weeks you are signing up for.
Total cost / number of weeks = cost per week
$325 / 13 weeks = $25 per week
The cost per week is $25 for swimming lessons.
