Answer:
2) 67.8°
3) 46.8°
4) 56.0°
Step-by-step explanation:
Use the right triangle trig functions
sine, cosine, or tangent and take the inverses to find the angle
Answer:
8.1
Step-by-step explanation:
use phythagoras theorem
since you have a hypotenuse and one known side you must equate the unknown side with the known sides and square two known side ,9^2-4^2= 62 then you must get the unknown side by introducing a square root and rounding off to the nearest decimal
Using the Law of Sines (sina/A=sinb/B=sinc/C for any triangle) we can say:
L/sin((180-90)/2)=12/sin90 (sin90=1)
L/sin45=12
L=12sin45 cm
L≈8.49cm (to nearest hundredth of a centimeter)
If a > 0, b>0, show that f(x)= a(1-e^-bx)
10x +y = xy +26
There are thee (3) sets of numbers that satisfy this.
.. (x, y) = (3, 2) . . . . the number is 32
.. (x, y) = (5, 6) . . . . the number is 56
.. (x, y) = (9, 8) . . . . the number is 98
If you solve the equation for y, you get
.. y = 10 -16/(x -1)
so x-1 is a 1-digit factor of 16: 2, 4, 8. These give rise to the solutions above.