This problem is about triangles.
We must apply the trigonmetric relations to solve this.
I can see we have a right angle triangle.
Let's use the idea of the tangent.
tan (22º) = building height / shadow length
Let's plug given data on above formula:
tan(22º) = 610 ft / shadow length
I looked up and got tan(22º) = 0.40, so:
0.40 = 610 ft / shadow length
shadow length = 610 ft / 0.40
shadow length = 1,525 ft
Answer: shadow length is 1,525 ft .
Answer:
Hey there!
The perimeter can be expressed as 140+140+68
This is equal to 493.52 m
Hope this helps :)
Answer:
area = 50 cm²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A =
h (a + b)
where h is the perpendicular height and a, b the parallel bases
Here h = 4, a = 15 and b = 10, thus
A =
× 4 × (15 + 10) = 2 × 25 = 50 cm²
You have $1.75 left
Step-by-step explanation:
Given,
Number of quarters already have = 20
Percent of quarters found = 40% of already have
Number of quarters found = 
Number of quarters found = 
Number of quarters found = 8
New total = 20+8 = 28 quarters
Percent of quarters spent = 75%
Number of quarters spent = 
Number of quarters spent = 
Number of quarters spent = 21
Quarters left = 28-21 = 7
1 quarter = 25 cents
7 quarters = 25*7 = 175 cents
$1 = 100 cents
175 cents = 
You have $1.75 left
Keywords: division, addition
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