∠DBC = 19° since the two angles have to add up to 180, if x = 23, then 23 -4 = 19 for the right, and 7 x 23 = 161, and 161 + 19 = 180.
Answer: you can change the subject so that you can help people with other subjects
Step-by-step explanation:
Since the deepest point of Death Valley is below sea level, its altitude is negative. So, the difference between the altitudes is

Subtracting a negative means to add, so we have

When you say congruent the figures must be the same, not just the segments
when you say the segments have equal legnth, only the segments are compared
Answer:


Step-by-step explanation:
<em>The question is mixed up with details of another question. See comment for original question</em>
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<u>Given</u>




Solving (a): Solve for time
We have:

Cross multiply

Make t the subject

Solving (b): Solve for distance
We have:

Cross multiply

