Answer:
33.275
Step-by-step explanation:
<u>1 step:</u> Difference in brackets

<u>2 step:</u> 

<u>3 step:</u> 

<u>4 step:</u>

<u>5 step:</u>

Answer:
f(3) = 13
Step-by-step explanation:
f(x) = 4x+1
f(3) = 4(3) + 1
f(3) = 12 + 1
f(3) = 13
Answer:
<em>The building is 61.5 m tall</em>
Step-by-step explanation:
The image below is a diagram where all the given distances and angles are shown. We have additionally added some variables:
h = height of the building
a, b = internal angles of each triangle
x = base of each triangle
The angles a and b can be easily found by subtracting the given angles from 90° since they are complementary angles, thus:
a = 90° - 37° = 53°
b = 90° - 42° = 48°
Now we apply the tangent ratio on both triangles separately:



From the last equation:

Substituting into the first equation:

Operating on the right side:

Rearranging:

Solving for h:

Calculating:
h = 61.5 m
The building is 61.5 m tall
42 km/h is equal to 0.00724933 m/s
You get this by dividing the km/h speed value by 1.609 to get it to m/h, then divide that by 60, then by 60 again to get it to m/s.
Answer:
15
Step-by-step explanation:
if you divide 20 by 8, then you get 2.5. multiply that by six, and you get your answer.