To find the average, combine all the numbers together and divide by the amount there is.
-7 + 2 - 9 - 4 - 7 = -25
-25/5 = -5
-5 is your average temperature
hope this helps
10 is the default base for a logarithm
log of 50 is equal to log base 10 of 50
This question uses trig
sin(55) = height/195
Therefore, height = 195sin(55) meters (just plug in calculator)
The picture is kind of blurry and I can’t make out the formulas. /:
5(9 + 7) = 5 x 9 + 5 x 7 = 45 + 35