<span>The question says,'what are accepted without proof in a logical system. The answers are axiom and postulates. On the basis of logic, axioms and postulates are statements that are considered to be self evident. They are believed to be true without any demonstration. They often serve as premises for making further arguements.</span>
Answer:
28
Step-by-step explanation:
25+26+27+28=106
Answer:
x = 35°
Step-by-step explanation:
From the question given above:
cos x = sin(20 + x)
The value of x can be obtained as follow:
cos x = sin(20 + x)
Recall:
sin(A + B) = sinAcosB + cosAsinB
Therefore,
sin(20 + x) = sin20cosx + cos20sinx
cos x = sin(20 + x)
cos x = sin20cosx + cos20sinx
Collect like terms
cos x – sin20cosx = cos20sinx
cos x(1 – sin20) = cos20sinx
Divide both side by cosx
(1 – sin20) = cos20sinx / cosx
Recall:
Tan x = sinx / cosx
(1 – sin20) = cos20tanx
Divide both side by cos20
(1 – sin20) / cos20 = tanx
(1 – 0.3420) / 0.9397 = tanx
0.658 / 0.9397 = tanx
0.7 = tanx
Take the inverse of tan
x = tan¯ 0.7
x = 35°
The answer to 3/4x2/5 is 3/10
Answer:
idk man
Step-by-step explanation:
i thin you should jus guess. I guessed and got like a 90.
jus put choice 3