Realize the tangent function has a period of 180°, so when your calculator (or memory) tells you
.. θ = arctan(-1)
.. θ = -45°
you can translate that value into the desired range by adding multiples of 180° to get the two solutions ...
.. θ = 135°
.. θ = 315°
Answer:
I think 14 days
Step-by-step explanation:
If 4 workers can do the task in 12 days then I should be able to complete the task in 4 time's 12 days. 6 workers should be able to complete the task in 4 times 12 divided 6.
Answer:
(r-7)(r+2)
Step-by-step explanation:
First, let's look at the -14. Possible factors for that number are (-2, 7) (2, -7) (1, -14) and (-1, 14).
Now, let's look at the -5. How can we make -5 with the pairs that we just found?
The only possible way is 2 and -7 (added together equals -5)
The least common factor of 8 and 56 is 56 because the multiples of 8 are 8,16,24,32,48,56,64 and for 56 its 56,112 and the least common factor is the one you see first that is a multiple of both.
If you are dividing numbers than here are some steps.
<span>Divide.
Multiply & subtract.
Drop down the next digit. h t o. ) 2 7 8.
Two goes into 2 one time, or 2 hundreds ÷ 2 = 1 hundred. h t o. ) 2 7 8. - ...Divide.Multiply & subtract.<span>Drop down the next digit. h t o. 1 3 9. ) 2 7 8. - 0 7. - 1 8.
Hope this helps! I used this to teach myself.</span></span>
