Answer:
Step-by-step explanation:
The change of base formula is
so filling in our given:
(Note: you do not have to put the base of 10 in the change of base formula because the "normal" base for a log is 10 and that is how your calculator figures it.)
Do this on your calculator to get
Not sure how many decimal places you needed!
Tanα=opposite/adjacent
tanα=height/distance
tanα=7/16
α=arctan(7/16)°
α≈23.63° (to nearest hundredth of a degree)
Answer:
D
Step-by-step explanation:
sorry idk how to explain it
Answer:

Step-by-step explanation:
Recall that
, therefore, 
Answer:
Step-by-step explanation:
The picture of the question in the attached figure
step 1
Find the measure of angle XWV
we know that
The triangle VWX is an isosceles triangle, because has two equal sides (VX=VW)
we have


so

Remember that an isosceles triangle has two equal interior angles
so


step 2
Find the measure of angle WVX
Remember that the sum of the interior angles in any triangle must be equal to 180 degrees
so

substitute the given values


step 3
Find the measure of arc WUX
we know that
----> by central angle
we have

therefore