Follow PEMDAS - but backwards.
(Parenthesis, Exponents. Multiplication, Division, Addition, Subtraction)
First SUBTRACT 5 from each side of the equation...
3x/5 + 5 (- 5) = 20 (- 5)
3x/5 = 15
Next MULTIPLY each side by 5...
3x/5 ( • 5) = 15 (• 5)
3x = 75
The third step if you need is to DIVIDE ...
3x ( / 3) = 75 (/ 3)
x = 25
Answer:
sin−1(StartFraction 8.9 Over 10.9 EndFraction) = x
Step-by-step explanation:
From the given triangle JKL;
Hypotenuse KJ = 10.9
Length LJ is the opposite = 8.9cm
The angle LKJ is the angle opposite to side KJ = x
Using the SOH CAH TOA Identity;
sin theta = opp/hyp
sin LKJ = LJ/KJ
Sinx = 8.9/10.9
x = arcsin(8.9/10.9)
sin−1(StartFraction 8.9 Over 10.9 EndFraction) = x
Answer:
3) (x-5)^2+y^2=36
Step-by-step explanation:
Answer:
P= 74
Step-by-step explanation:
For a rectangle with width w and length L, the perimeter P is defined as P=2W+2L
W=16
L=21
P= 2 x 16 + 2 x 21 =
P=74
