Answer:
it depends on your writing or typing speed and but illl go with 10
Step-by-step explanation:
Answer:
65
Step-by-step explanation:
This question can be solved using the Pythagorean Theorem, which is 
where a and b are legs and c is the hypotenuse. The equation used to solve for one leg is 
. So, plug in the given measurements and solve. This turns into 
, which equals 65.
Answer:
<h2>FD = 26</h2>
<u>Step-by-step explanation:</u>
CD = ED --- (secant<em> </em>property<em>)</em>
so, ==>>
13x - 16 = 4x + 11
13x - 4x = 11 + 16
9x = 27
x = 27÷9
x = 3
side ED = 4x + 11 = 4×3 + 11
side ED = 23
side FE = 12
ΔFED = 90° ...... (tangent secant property)
so.........
FE² + ED² = FD² ......... ( by pythagoras theorm)
12² + 23² = FD²
144 + 529 = FD²
673 = FD²
√673 = FD
26 = FD
Let the distance from the pole be x and the length of the shadow be s. Using the law of similar triangles, we have:
s/6=(x+s)/15
thus
5s=2x+2s
3s=2x
hence
ds/dt=2/3 dx/dt
but
dx/dt=4 ft per second
hence
ds/dt=2/3*4=8/3
This may help :))
She worked 9 hours on store and gave piano lessons for 6 hours
Let x be the no. of hours she worked on store
Cost of 1 hour on shop = $8.47
Cost of x hours on shop = $8.47x
Let y be the no. of hours she gave piano lessons
Cost of 1 hour for piano lessons = $17
Cost of y hours on shop = $17y
