We have to find the exact value of: arc cos ( sin ( π /6 ) ).
We know that:
sin ( π/6 ) = sin 30° = 1/2
Arc cos is the inverse function of cosine.
arc cos ( 1/2 ) = 60° = π/3
Remainder would be 8 I believe idk
Answer:
10 weeks
Step-by-step explanation:
20x+50=250
First subtract 50 from both sides, which gives you 20x=200
then divide 20 from both sides which gives you x=10
Answer:
A. x = -2, x = 1.25
Step-by-step explanation:
<u>Use the </u><u>quadratic</u><u> formula</u>
x = 
Once in standard form, <u>identify</u> a, b, and c from the <u>original</u> equation and plug them into the <u>quadratic formula</u>.
4x² + 3x - 10 = 0
a = 4
b = 3
c = - 10
x = 
<u>Simplify</u>
<u>Evaluate the exponent</u>
x = 
<u>Multiply</u> the numbers
x = 
Add the <u>numbers</u>
x = 
Evaluate the <u>square root</u>
x = 
<u>Multiply</u> the numbers
x = 
<u>Separate</u><u> the equations</u>
To solve for the <u>unknown variable</u>, separate into two equations: one with a plus and the other with a minus.
x = 
x = 
<u>Solve</u>
Rearrange and isolate the <u>variable</u> to find each <u>solution</u>
x = - 2
x = 1.25
P = 2(L + W)
L = 2W + 5/2
P = 2(2W + 5/2 + W)
P = 2(3W + 5/2)
P = 6W + 5
P - 5 = 6W
(P - 5) / 6 = W or 1/6P - 5/6 = W <===