Answer:
Step-by-step explanation:
Given
We know that trigonometric ratio as
- sin Ф = opposite/hypotenuse
- cos Ф = adjacent/hypotenuse
- tan Ф = opposite/adjacent
as
sin A = sin 40 = opposite/hypotenuse
From the diagram, it is clear that the opposite of angle A is a=8 and the hypotenuse is 'c'.
also the angle
sin A = sin 40 = opposite/hypotenuse = a/c = 8/c
sin 40 = 8/c
c = 8/sin 40
c = 8/0.745
c = 10.7
so the value of c will be: 10.7 units
so
tan B = opposite/adjacent
= b/a
= 0.9
![B=\tan ^{-1}\left(0.9\right)](https://tex.z-dn.net/?f=B%3D%5Ctan%20%5E%7B-1%7D%5Cleft%280.9%5Cright%29)
![=42^{\circ \:}](https://tex.z-dn.net/?f=%3D42%5E%7B%5Ccirc%20%5C%3A%7D)
Therefore, the value of B = ![42^{\circ \:}](https://tex.z-dn.net/?f=42%5E%7B%5Ccirc%20%5C%3A%7D)
As the sum of the angles of triangle ABC is 180.
i.e.
A+B+C = 180
(40)° + (42)° + C = 180°
C = 180° - 40° - 42°
= 98°
Therefore, the value of C = 98°
Hence,
-9(4+x)>-126
-36-9x>-126
-36+36-9x>-126+36
-9x>-90
-9x/-9<-90/-9
x<10
5x+3÷4=7
5x+.75=7
-.75 -.75
5x = 6.25
divide by 5 on both sides
x= 1.25
please mark brainliest
Answer:54.117
Step-by-step explanation:
Mean=45.4
Standard deviation=5.3
=5%. =0.05
1-0.05=0.95
Normal Dist(40,10)
InverseCdf(0.95,45.4,5.3)
Answer:
im not sure i understand the question
Step-by-step explanation:
80.50 plus........plus what?
i am confusion