Answer:
$42
Step-by-step explanation:
Since she has a 30% coupon, the new price of the jeans will be 30% of the original price subtracted from the original price
Original price = $60
Therefore
30% of $60
Make 30% a decimal
30/100 x $60
0.3 x $60 = $18
New price = $60 - $18
= $42
The new price for the jeans is $42
Answer:
We have to prove
sin(α+β)-sin(α-β)=2 cos α sin β
We will take the left hand side to prove it equal to right hand side
So,
=sin(α+β)-sin(α-β) Eqn 1
We will use the following identities:
sin(α+β)=sin α cos β+cos α sin β
and
sin(α-β)=sin α cos β-cos α sin β
Putting the identities in eqn 1
=sin(α+β)-sin(α-β)
=[ sin α cos β+cos α sin β ]-[sin α cos β-cos α sin β ]
=sin α cos β+cos α sin β- sinα cos β+cos α sin β
sinα cosβ will be cancelled.
=cos α sin β+ cos α sin β
=2 cos α sin β
Hence,
sin(α+β)-sin(α-β)=2 cos α sin β
Answer: true
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
because it is is parenthesis
Answer:
P = 17
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
P = x + y
x = 11
y = 6
<u>Step 2: Evaluate</u>
- Substitute: P = 11 + 6
- Add: P = 17
And we have our final answer!
