Answer:
37.7
Step-by-step explanation:
EF and ED define the Tangent of D
Tan(37) = side opposite D / side adjacent to D
Opposite means a line (FE) that is not connected to the angle. It is never the longest line (hypotenuse) in a Right Triangle
Adjacent means the leg that is connected to the angle, but is not the hypotenuse.
Tan(D) = opposite over adjacent
Opposite = x
Adjacent = 50
Tan(37) = 0.7536 rounded to 4 places, but I've kept the exact value in my calculator.
0.7536 = x / 50 Multiply both sides by 50
0.7536*50 = x
x = 37.6777
The nearest 1/10 is 37.7
Answer:
Time required by Machine B to create a widget = 4 hours
Step-by-step explanation:
Time taken by Machine A (
) = 3 hours
Time taken by Machine B (
)= x hours
Time taken by both machines by working together = 12 hours
The time required to both machines by working together to finish a task is given by the formula = ![\frac{T_{A} {T_{B} } }{T_{A} + T_{B} }](https://tex.z-dn.net/?f=%5Cfrac%7BT_%7BA%7D%20%7BT_%7BB%7D%20%7D%20%7D%7BT_%7BA%7D%20%2B%20T_%7BB%7D%20%7D)
Put the values in above formula we get
⇒ T = ![\frac{3 x}{3 + x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%20x%7D%7B3%20%2B%20x%7D)
⇒ 12 = ![\frac{3 x}{3 + x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%20x%7D%7B3%20%2B%20x%7D)
⇒ 36 + 12 x = 3 x
⇒ x = - 4 hours
This is the time required by Machine B to create a widget.
B=5a-4
pick any a valve and replace it with a you will get b
4+3(7+4 x 2)-100
4+3(7+8)-100
4+3(15)-100
4+45-100=
-51
use brainly to find the answer