Blue tiles= 9/20
Letter b= 10/20- 1/2
Either blue or b= 19/20
If the perpendicular from chord is x, the length of cord is 11.3 and diameter be 15.5 then the value of x is 4.54.
Given Perpendicular from center to chord is x. The length of cord be 11.3 and the diameter be 15.5.
Perpendicular means a line on other line making an angle of 90 degrees. Cord is the length of line joining two points on a circle and is different from radius or diameter. We know that the formula of calculating the length of chord is as under:
l=
now put the value of l=11.3 and r=15.5/2=7.25
11.3=
11.3/2=
5.65=
squaring both sides
31.9225=52.5625-
31.9225-52.5625=-
-20.64=-
20.64=
x=4.54
Hence if the length of cord is 11.3 and diameter is 15.5 then the value of x is 4.54.
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Multiply 3 * 1 1/2 to find how many miles she runs per hour
1 1/2 * 3
3/2 * 3
9/2
4 1/2 She will run 4 1/2 or 4.5 miles per hour.
To solve this we use trigonometric functions that would relate the hypotenuse y and the given values. For this case we use cosine function which is expressed as:
cosine theta = adjacent side / hypotenuse
cosine 52 = 35 / y
y = 35 / cos 52
y = 56.85
Answer: 133.69 or 133.7
Step-by-step explanation: