Answer:
y=2x-3
Step-by-step explanation:
Initially started 20 feet from the ground .
Went uphill 83 feet.
So: 20 + 83 = 103. The coaster is 103 ft above at this point.
Went down 42 feet
So: 103 - 42 = 61.
Went up 128 feet
So: 61 + 128 = 189
Finally, went down 90 feet
So: 189 - 90 = 99
99 ft above ground.
Get value of 'A' from a sin table and C is already given 90, hence B can be calculated using angle sum property of a triangle.
<span>alternately, using pythagorus th., find the third side of triangle and then you will know sinB. </span>
<span>again from sin table, get B
</span>sinA = 243/312 = 0.7788
<span>A = 51.16 degrees </span>
<span>B = 180 - 90 - 51.16 = 38.64 degrees (fourth choice) </span>
Answer:
Answer C
Step-by-step explanation:
Logs work that way. When you subtract one log from another, you can rewrite it as a fraction.
The answer is 7 outside the square root. Another 7 will be inside the square root. Then over 8