A times b times C equals 300, a times C equals 100, a times 4 equals C, how much does a equal? B equals how much? C equals how much?

A times b times C equals 300, a times C equals 100, a times 4 equals C, how much does a equal? B equals how much? C equals how much?

a*b*c=300
a*c=100
4*a=c
Substituting C = 4 * a into a * C = 100, we get 4A * a = 100 and a = 5
So C = 20,
Substituting a * b * C = 300, we get b = 3
X-0.36X=16,
X-0.36X=16
(1-0.36)x=16
0.64x=16
x=25
How many hours, minutes and seconds are eight months and two days
Eight months and two days = 5808 hours = 348480 minutes = 20908800 seconds
How about x-0.36x = 16? Thank you
X（1-0.36）=16
0.64X =16
X =25
In the measurement of angle and angle in grade one of junior high school, 37 ° 49 '+ 44 ° 28' (results expressed in degrees, minutes and seconds) 108 ° 18 '- 56.5' (results expressed in degrees)
90 ° - 35 ° 12'5 '' = 37 ° 45 '(results expressed in degrees)
"It's 60 seconds
'it's fractional and it's 60
Degree is in 100
1°=60’
1‘=60“
At the beginning of learning, you can't react. Just think about watch 60 seconds 1 minute 60 minutes 1 hour
82'17'51.8: there are four processes
X minus 0.36x equals 16
x-0.36x=16
(1-0.36)x=16
0.64x=16
x=16÷0.64
x＝25
Express 32.18 degrees in degrees, minutes and seconds
Multiplication or division
0.18 degrees = 10.8 points
0.8 min = 48 s
32.18 degrees = 32 degrees 10 minutes 48 seconds
32.18°=32°10′48〃
32 degrees, 10 minutes, 48 seconds
32 degrees, 10 minutes, 48 seconds
1°=60′
1′=60〃
So the conversion result of this problem is 32 ° 10'48 ″
36x equals 16,
（1-0.36）x=16
0.64x=16
x=16÷0.64
x=25
24.29 ° indicates the required process in degrees, minutes and seconds
24.29°=24°+0.29×60'=24°17.4'=24°+17'+0.4×60''=24°+17'+24''
24.29°=24°17'24
24.29°
=24°+0.29°
=24°+0.29*60'
=24°+17.4'
=24°+17'+0.4'
=24°+17'+0.4*60''
=24°+17'+24''
=24°17'24''
24°
0.29*60=17.4'
17'
0.4'*60=24"
So 24.29 ° = 24 ° 17'24“
Given f (x) = (SiNx) ^ 2 + 2sinxcosx + 3 (cosx) ^ 2, X ∈ R, find:
(1) The maximum value of function f (x) and the set of independent variables X to obtain the maximum value
(2) Monotone increasing interval of F (x)
Is there a more general solution?
Like derivatives
I can't understand this solution
This is the normal solution
(1)f(x)=1+2sinxcosx+2(cosx)^2
=1+sin2x+cos2x+1
=Root sign 2Sin (2x + π / 4) + 2
Maximum root 2 + 2
2x+π/4=2kπ+π/2 x=kπ+π/8
Maximum - radical 2 + 2
2x+π/4=2kπ+3π/2 x=kπ+5π/8
(2)2kπ-π/2